CN113831564A - Degradable protective film and preparation process thereof - Google Patents
Degradable protective film and preparation process thereof Download PDFInfo
- Publication number
- CN113831564A CN113831564A CN202111225370.1A CN202111225370A CN113831564A CN 113831564 A CN113831564 A CN 113831564A CN 202111225370 A CN202111225370 A CN 202111225370A CN 113831564 A CN113831564 A CN 113831564A
- Authority
- CN
- China
- Prior art keywords
- breathable
- grinding
- fixedly connected
- ball
- protective film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 238000000227 grinding Methods 0.000 claims abstract description 107
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 28
- 239000000428 dust Substances 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 15
- 241000883990 Flabellum Species 0.000 claims description 14
- 102000016938 Catalase Human genes 0.000 claims description 13
- 108010053835 Catalase Proteins 0.000 claims description 13
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 12
- 239000007864 aqueous solution Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 239000000839 emulsion Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000049 pigment Substances 0.000 claims description 6
- 235000010413 sodium alginate Nutrition 0.000 claims description 6
- 239000000661 sodium alginate Substances 0.000 claims description 6
- 229940005550 sodium alginate Drugs 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 claims description 6
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- 239000000440 bentonite Substances 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 239000006254 rheological additive Substances 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 229920001661 Chitosan Polymers 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 238000006136 alcoholysis reaction Methods 0.000 claims description 3
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 claims description 3
- 239000003995 emulsifying agent Substances 0.000 claims description 3
- 230000001804 emulsifying effect Effects 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 235000011187 glycerol Nutrition 0.000 claims description 3
- 239000001087 glyceryl triacetate Substances 0.000 claims description 3
- 235000013773 glyceryl triacetate Nutrition 0.000 claims description 3
- 239000012046 mixed solvent Substances 0.000 claims description 3
- 239000003755 preservative agent Substances 0.000 claims description 3
- 230000002335 preservative effect Effects 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 229960002622 triacetin Drugs 0.000 claims description 3
- 235000010493 xanthan gum Nutrition 0.000 claims description 3
- 239000000230 xanthan gum Substances 0.000 claims description 3
- 229920001285 xanthan gum Polymers 0.000 claims description 3
- 229940082509 xanthan gum Drugs 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 5
- 239000002994 raw material Substances 0.000 abstract description 18
- 239000007789 gas Substances 0.000 abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 10
- 239000001301 oxygen Substances 0.000 abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 description 9
- 229920000642 polymer Polymers 0.000 description 9
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 7
- 238000007664 blowing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000006386 memory function Effects 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C1/00—Crushing or disintegrating by reciprocating members
- B02C1/14—Stamping mills
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
- C08J2405/04—Alginic acid; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
- C08J2405/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2429/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2429/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2429/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention discloses a degradable protective film and a preparation process thereof, belonging to the field of protective film preparation, wherein in the grinding process of a breathable grinding sphere, heat is generated to make an expansion air bag subject to thermal expansion, the breathable grinding sphere is driven by an electric telescopic rod to move up and down to facilitate the raw materials on the surface of the breathable grinding sphere to fall off, when the breathable grinding sphere moves down, the expansion air bag is extruded by air resistance to drive the internal gas to be blown into hydrogen peroxide, the breathable grinding sphere moves up and down to blow the hydrogen peroxide to be sprayed out in a matched manner, an impact release valve is opened to promote the hydrogen peroxide to fall off, the hydrogen peroxide is catalyzed to be decomposed into water and oxygen and release heat to accelerate air flow, a rotating fan blade is driven to rotate, and the magnetic ball is driven to impact the breathable grinding sphere back and forth through the same polarity repulsion action of the magnetic ball in the rotating process to enable the raw materials remained on the surface of the breathable grinding sphere to fall off, the full utilization is obtained, and the resource waste is reduced.
Description
Technical Field
The invention relates to the field of protective film preparation, in particular to a degradable protective film and a preparation process thereof.
Background
The protective film is a film which is arranged outside the entity object to be protected and plays a role in protection, and the protective film can be applied to the following fields according to the application range: with the development of polymer chemistry, people pursue the preparation of degradable protective films to avoid the generation of a large amount of solid wastes after use, so that the solid wastes are degraded after use, and the harm to the environment is reduced.
In the prior art, in the preparation process of the degradable protective film, raw materials need to be ground, but the raw materials are easy to adhere to grinding equipment in the grinding process, so that the raw materials are not sufficiently utilized, the grinding is not thorough enough, and the waste is easily caused.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a degradable protective film and a preparation process thereof, which can realize that in the grinding process of a breathable grinding sphere, heat is generated to make an expansion air bag thermally expand, the breathable grinding sphere moves up and down under the driving of an electric telescopic rod, so that raw materials on the surface of the breathable grinding sphere can fall off conveniently, when the breathable grinding sphere moves downwards, the expansion air bag is extruded by air resistance to drive the internal gas to be blown into hydrogen peroxide, the hydrogen peroxide is blown out by the up-and-down movement of the breathable grinding sphere in a matched manner, a release valve is impacted to be opened, catalase falls off, hydrogen peroxide is catalyzed to be decomposed into water and oxygen and release heat, the air flow is accelerated, a rotating fan blade is driven to rotate, and the magnetic sphere is driven to impact the breathable grinding sphere back and forth through the repulsion action of a magnet block and the magnetic sphere to make the residual raw materials fall off, meanwhile, the deformation memory strip is heated to bloom and fall to the adsorption block to be contacted with the grinding barrel, and the air flow blows the collision small balls to collide to generate vibration and transmit the vibration to the grinding barrel, so that the raw materials attached to the inner wall of the grinding barrel fall off, the raw materials are fully utilized, and the resource waste is reduced.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A degradable protective film and a preparation process thereof comprise the following steps:
s1, firstly, slowly stirring 1.0% of sodium alginate, adding the sodium alginate into deionized water at 50-60 ℃ to prepare 1.0% of aqueous solution, then adding 1.0% of emulsifier, emulsifying for 5 minutes, adding 2.0% of carboxymethyl chitosan aqueous solution according to the weight ratio of 1: 3, and continuously stirring for 30 minutes to prepare stable emulsion;
s2, preparing a first polyvinyl alcohol aqueous solution and a second polyvinyl alcohol aqueous solution which are respectively 4% and have alcoholysis degrees of 89% and 99%, fully mixing the two solutions in equal proportion, adding 2.0% of glycerin, and stirring for 30 minutes to prepare polyvinyl alcohol slurry;
s3, mixing 2.0% of titanium dioxide, 98.4% of mixed solvent of methanol and dibasic acid ester and 0.6% of bentonite rheological additive which is fully ground by a grinding device to prepare pigment slurry, and then mixing the emulsion, polyvinyl alcohol slurry and pigment slurry according to a certain proportion to prepare film forming liquid;
s4, mixing 40.0-25.0% of deionized water, 50.0-54.0% of film liquid, 0.6-1.5% of xanthan gum, 0.3-0.8% of CMC-sodium, 3.5-10.0% of dihydric alcohol or trihydric alcohol condensate, 1.2-4.0% of triacetin and 0.2-0.4% of preservative fully, and preparing into the degradable protective film.
Further, the grinding device in S3 includes a grinding barrel, a sealing frame is fixedly connected to the upper end of the grinding barrel, a motor is installed at the upper end of the sealing frame, an electric telescopic rod is rotatably connected to the top end of the sealing frame, the output end of the motor is fixedly connected to the electric telescopic rod, a breathable grinding sphere is fixedly connected to the lower end of the electric telescopic rod, a storage cup is fixedly connected to the interior of the breathable grinding sphere, hydrogen peroxide is filled in the storage cup, two fixing plates are fixedly connected between the storage cup and the inner bottom end of the breathable grinding sphere, an expansion airbag is arranged between the two fixing plates, the expansion airbag is fixedly connected to the breathable grinding sphere, an air duct is fixedly connected between the expansion airbag and the breathable grinding sphere, the air duct is respectively communicated with the interior of the expansion airbag and the interior of the breathable grinding sphere, and a waterproof breathable film is fixedly connected to the air duct, the storage cup is internally and fixedly connected with a waterproof breathable plate, the lower end of the waterproof breathable plate is fixedly connected with a plurality of release balls which are uniformly distributed, the outer ends of the release balls are provided with release ports, the inner walls of the release ports are fixedly connected with release valves, the initial state of the release valves is a gathering state, the release balls are filled with catalase, one ends of the two fixing plates which are far away from each other are respectively provided with an impact mechanism, when the breathable grinding ball is ground, heat is generated to enable the expansion airbags to be heated and expanded, when the breathable grinding ball is driven to be lifted to a high position by an electric telescopic rod, materials attached to the surfaces of the breathable grinding ball fall off, the expansion airbags slightly shrink when meeting cold, then the breathable grinding ball moves downwards under the driving of the electric telescopic rod, air resistance is applied to extrude the expansion airbags, gas in the breathable grinding ball is blown into hydrogen peroxide, and the breathable grinding ball moves back and forth by the cooperation of the blowing of the gas, make hydrogen peroxide solution blowout, the impact release valve makes it be opened by the extrusion, makes catalase drop, and catalysis hydrogen peroxide solution decomposes into water and oxygen, and the while releases the heat, makes the air current accelerate through oxygen and heating, blows striking mechanism striking ventilative grinding spheroid, makes the raw and other materials that remain on its surface drop, obtains make full use of, reduces the wasting of resources.
Further, striking mechanism is including rotating the flabellum, it is connected with the fixed plate rotation to rotate the flabellum, the outer end fixedly connected with magnet piece of rotating the flabellum, the fixedly connected with stretch cord between ventilative grinding spheroid and the reservoir cup, the magnetic ball has been cup jointed to the outer end of stretch cord, the outer end cover of magnetic ball is equipped with the rubber cushion collar, the one end that magnetic ball and magnet piece are close to each other is like nature setting, and along with hot-air upwards flows, makes to rotate the flabellum, rotates the flabellum rotation in-process, and the magnet piece corresponds with the magnetic ball, through like nature repellent's effect, makes the magnetic ball strike ventilative grinding spheroid under the assistance of stretch cord and rubber cushion collar, makes and remains at its surperficial raw and other materials and drop.
Further, a plurality of evenly distributed's of outer end fixedly connected with deformation memory strip of seal frame, the outer end fixedly connected with of deformation memory strip adsorbs the piece, the outer end of deformation memory strip has been cup jointed and has been passed through the balloon, the inside of passing through the balloon is equipped with a plurality of collision bobbles, and the heat outwards spills over, makes deformation memory strip be heated deformation, outwards bloies out and hangs down, makes to adsorb the piece and adsorbs the grinding barrel, and the collision bobble in the ventilative ball of air flow blowing simultaneously collides each other, produces the vibration to on will vibrating transmission grinding barrel, make be stained with the raw materials that attaches on its inner wall and drop, make its utilization abundant.
Further, the outer end of sealed frame is opened and is dug there are two vents, the inner wall fixedly connected with dust screen of vent, the dust screen adopts stainless steel material to make, the surface coating of dust screen has anti rust coating, through the setting of dust screen to it has anti rust coating to coat with a brush, realizes that the circulation of air in-process dust is difficult for entering into sealed frame and grinding barrel through the dust screen in, makes the dust screen difficult by the corrosion in the use simultaneously, prolongs its life.
Furthermore, the feed inlet has been dug to the outer end of sealing frame, the feed inlet internal rotation is connected with two dodge gates, and two dodge gates be in close contact with each other, the outer end fixedly connected with handle of dodge gate through the setting of dodge gate and handle, realizes opening and shutting of feed inlet, makes things convenient for the staff feeding and gets the material.
Further, ventilative grinding spheroid and ventilative ball all adopt polymer air-permeable material to make, waterproof ventilated membrane and waterproof ventilative board all adopt novel polymer waterproof material to make, and ventilative grinding spheroid and ventilative ball through using polymer air-permeable material to make have good ventilative function, and waterproof ventilated membrane and waterproof ventilative board that use novel polymer waterproof material to make can play waterproof effect, can guarantee the circulation of air simultaneously again.
Further, release valve is for gathering together the state when not receiving the extrusion, release valve is for opening the state after receiving the extrusion, and release valve can make catalase be difficult for dropping under gathering together the state, and receives the extrusion back, and release valve is in the open mode, and catalase can drop.
Further, the shape memory strip is made of shape memory metal materials, the initial state of the shape memory strip is a furled state, the shape memory strip is made of shape memory alloy materials and has a memory function, after the temperature rises, the shape memory strip is heated to deform, the furled state is converted into a blooming and dropping state, and after the temperature falls, the shape memory strip begins to restore to the initial state again.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the proposal can realize that when the breathable grinding ball body is ground, the expansion air bag is thermally expanded by the generated heat, when the air-permeable grinding ball body is driven by the electric telescopic rod to move upwards to a high position, the material attached to the surface of the air-permeable grinding ball body falls off, the expansion air bag slightly shrinks when meeting cold, then driven by the electric telescopic rod to move downwards, the air resistance is applied to extrude the expansion air bag, so that the gas in the expansion air bag is blown into hydrogen peroxide, by the blowing of the gas and the back-and-forth movement of the breathable grinding ball body, the hydrogen peroxide is sprayed out to impact and release the valve, so that the valve is extruded and opened, the catalase is promoted to fall off, and the hydrogen peroxide is catalyzed to be decomposed into water and oxygen, simultaneously, heat is released, air flow is accelerated through oxygen and heating, and the blowing impact mechanism impacts the breathable grinding ball body to enable raw materials remained on the surface of the breathable grinding ball body to fall off, so that the raw materials are fully utilized, and resource waste is reduced.
(2) Striking mechanism is including rotating the flabellum, rotating the flabellum and being connected with the fixed plate rotation, rotating the outer end fixedly connected with magnet piece of flabellum, the fixedly connected with bungee between ventilative grinding spheroid and the reservoir cup, the outer end of bungee has cup jointed the magnetic ball, the outer end cover of magnetic ball is equipped with the rubber cushion collar, the one end that magnetic ball and magnet piece are close to each other is like nature setting, flow upwards along with the hot-air, make and rotate the flabellum, rotate the flabellum and rotate the in-process rotating, it corresponds with the magnetic ball to rotate the flabellum, through like nature repulsion's effect, make the magnetic ball strike ventilative grinding spheroid under the assistance of bungee and rubber cushion collar, make remaining raw and other materials at its surface drop.
(3) The deformation memory strip of a plurality of evenly distributed of outer end fixedly connected with of seal frame, the outer end fixedly connected with of deformation memory strip adsorbs the piece, the outer end of deformation memory strip has cup jointed the ball that passes through, the inside of ventilative ball is equipped with a plurality of collision bobbles, the heat outwards spills over, make deformation memory strip be heated deformation, outwards bloom and hang down, make and adsorb the piece and adsorb the grinding vessel, the collision bobble that air flow blows in the ventilative ball simultaneously collides each other, produce the vibration, and transmit the vibration to the grinding vessel on, make and be stained with the raw materials that attaches on its inner wall and drop, make its utilization abundant.
(4) The outer end of sealed frame is opened the chisel and is had two vents, and the inner wall fixedly connected with dust screen of vent, dust screen adopt stainless steel material to make, and the surface coating of dust screen has anti-rust coating, through the setting of dust screen to it has anti-rust coating to apply paint with a brush, realizes that the circulation of air in-process dust is difficult for entering into sealed frame and grinding barrel through the dust screen in, makes the dust screen difficult by the corrosion in the use simultaneously, prolongs its life.
(5) The feed inlet has been dug to the outer end of seal frame, and the feed inlet internal rotation is connected with two dodge gates, and the mutual in close contact with of two dodge gates, and the outer end fixedly connected with handle of dodge gate through the setting of dodge gate and handle, realizes opening and shutting of feed inlet, makes things convenient for the staff feeding and gets the material.
(6) Ventilative grinding spheroid and ventilative ball all adopt polymer breathable material to make, and waterproof ventilated membrane and waterproof ventilative board all adopt novel polymer waterproof material to make, and ventilative grinding spheroid and ventilative ball through using polymer breathable material to make have good ventilative function, and waterproof ventilated membrane and waterproof ventilative board that use novel polymer waterproof material to make can play waterproof effect, can guarantee the circulation of air simultaneously again.
(7) The release valve is in a gathering state when not squeezed, is in an opening state after being squeezed, can enable catalase to be not prone to falling off when being in the gathering state, is in the opening state after being squeezed, and can fall off when being squeezed.
(8) The deformation memory strip is made of shape memory metal materials, the initial state of the deformation memory strip is a furled state, the deformation memory strip is made of deformation memory alloy materials and has a memory function, after the temperature rises, the deformation memory strip is heated to deform, the furled state is converted into a blooming and falling state, and after the temperature falls, the deformation memory strip begins to restore to the initial state.
Drawings
FIG. 1 is a schematic perspective view of a polishing apparatus according to the present invention;
FIG. 2 is a schematic view of the overall structure of the polishing apparatus of the present invention;
FIG. 3 is a schematic cross-sectional view of a gas permeable polishing sphere according to the present invention;
FIG. 4 is a schematic cross-sectional view of a release ball according to the present invention;
FIG. 5 is a schematic side view of a rotary blade of the present invention;
FIG. 6 is a schematic cross-sectional view of a magnetic ball according to the present invention.
The reference numbers in the figures illustrate:
1. a grinding barrel; 2. a sealing frame; 201. a movable door; 3. a motor; 4. an electric telescopic rod; 5. grinding the ball body in a ventilating way; 6. a storage cup; 7. a fixing plate; 8. inflating the balloon; 9. an air duct; 10. a waterproof breathable film; 11. a waterproof breathable plate; 12. releasing the ball; 13. releasing the valve; 14. rotating the fan blades; 15. a magnet block; 16. an elastic cord; 17. a magnetic ball; 1701. a rubber cushion sleeve; 18. a dust screen; 19. a shape change memory bar; 20. a permeable balloon; 21. bumping the small ball; 22. and (5) adsorbing the block.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
a degradable protective film and a preparation process thereof comprise the following steps:
s1, firstly, slowly stirring 1.0% of sodium alginate, adding the sodium alginate into deionized water at 50-60 ℃ to prepare 1.0% of aqueous solution, then adding 1.0% of emulsifier, emulsifying for 5 minutes, adding 2.0% of carboxymethyl chitosan aqueous solution according to the weight ratio of 1: 3, and continuously stirring for 30 minutes to prepare stable emulsion;
s2, preparing a first polyvinyl alcohol aqueous solution and a second polyvinyl alcohol aqueous solution which are respectively 4% and have alcoholysis degrees of 89% and 99%, fully mixing the two solutions in equal proportion, adding 2.0% of glycerin, and stirring for 30 minutes to prepare polyvinyl alcohol slurry;
s3, mixing 2.0% of titanium dioxide, 98.4% of mixed solvent of methanol and dibasic acid ester and 0.6% of bentonite rheological additive which is fully ground by a grinding device to prepare pigment slurry, and then mixing the emulsion, polyvinyl alcohol slurry and pigment slurry according to a certain proportion to prepare film forming liquid;
s4, mixing 40.0-25.0% of deionized water, 50.0-54.0% of film liquid, 0.6-1.5% of xanthan gum, 0.3-0.8% of CMC-sodium, 3.5-10.0% of dihydric alcohol or trihydric alcohol condensate, 1.2-4.0% of triacetin and 0.2-0.4% of preservative fully, and preparing into the degradable protective film.
Referring to fig. 1-4, the grinding device in S3 includes a grinding barrel 1, a sealing frame 2 is fixedly connected to the upper end of the grinding barrel 1, a motor 3 is installed at the upper end of the sealing frame 2, an electric telescopic rod 4 is rotatably connected to the top end of the sealing frame 2, an output end of the motor 3 is fixedly connected to the electric telescopic rod 4, a breathable grinding sphere 5 is fixedly connected to the lower end of the electric telescopic rod 4, a storage cup 6 is fixedly connected to the interior of the breathable grinding sphere 5, hydrogen peroxide is filled in the storage cup 6, two fixing plates 7 are fixedly connected between the storage cup 6 and the inner bottom end of the breathable grinding sphere 5, an inflatable air bag 8 is disposed between the two fixing plates 7, the inflatable air bag 8 is fixedly connected to the breathable grinding sphere 5, an air duct 9 is fixedly connected between the inflatable air bag 8 and the breathable grinding sphere 5, and the air duct 9 is respectively communicated with the inflatable air bag 8 and the interior of the breathable grinding sphere 5, the air duct 9 is internally fixedly connected with a waterproof ventilated membrane 10, the storage cup 6 is internally fixedly connected with a waterproof ventilated plate 11, the lower end of the waterproof ventilated plate 11 is fixedly connected with a plurality of release balls 12 which are uniformly distributed, the outer ends of the release balls 12 are provided with release ports, the inner walls of the release ports are fixedly connected with release valves 13, the initial state of the release valves 13 is a gathering state, the release balls 12 are filled with catalase, one ends of the two fixing plates 7 which are far away from each other are provided with striking mechanisms, when the breathable grinding ball body 5 is ground, heat is generated to heat and expand the expansion air bag 8, when the breathable grinding ball body 5 is driven by the electric telescopic rod 4 to be upwards to a high position, the material attached to the surface of the breathable grinding ball body drops down, the expansion air bag 8 contracts slightly when being cooled, then moves downwards under the drive of the electric telescopic rod 4 to receive air resistance, the expansion air bag 8 is extruded, and the gas in the breathable grinding ball is blown into hydrogen peroxide, through the back and forth movement of the ventilative grinding spheroid 5 of the cooperation of blowing of gas, make hydrogen peroxide solution blowout, impact release valve 13, make it opened by the extrusion, make the catalase drop, catalysis hydrogen peroxide solution decomposes into water and oxygen, and the heat of release simultaneously makes the air current accelerate through oxygen and heating, blows striking mechanism striking ventilative grinding spheroid 5, makes the raw and other materials that remain at its surface drop, obtains make full use of, reduces the wasting of resources.
Referring to fig. 3 and 5-6, the impact mechanism includes a rotating fan blade 14, the rotating fan blade 14 is rotatably connected to the fixing plate 7, a magnet block 15 is fixedly connected to an outer end of the rotating fan blade 14, an elastic cord 16 is fixedly connected between the air-permeable grinding sphere 5 and the storage cup 6, a magnetic ball 17 is sleeved on an outer end of the elastic cord 16, a rubber buffer sleeve 1701 is sleeved on an outer end of the magnetic ball 17, one end of the magnetic ball 17, which is close to the magnet block 15, is in the same polarity arrangement, and the rotating fan blade 14 rotates along with the upward flow of hot air, and when the magnet block 15 corresponds to the magnetic ball 17 during the rotation of the rotating fan blade 14, the magnetic ball 17 strikes the air-permeable grinding sphere 5 with the aid of the elastic cord 16 and the rubber buffer sleeve 1701, so that the raw material remaining on the surface of the magnetic ball falls down.
Referring to fig. 2, a plurality of deformation memory strips 19 are fixedly connected to the outer end of the sealing frame 2, the deformation memory strips 19 are uniformly distributed, an adsorption block 22 is fixedly connected to the outer end of each deformation memory strip 19, a permeable ball 20 is sleeved on the outer end of each deformation memory strip 19, a plurality of collision small balls 21 are arranged inside each permeable ball 20, heat overflows outwards, the deformation memory strips 19 are deformed by heat, the deformation memory strips burst outwards to make the adsorption blocks 22 adsorb the grinding barrel 1, and meanwhile, the collision small balls 21 in the permeable balls 20 are blown by air flow to collide with each other to generate vibration, and the vibration is transmitted to the grinding barrel 1, so that raw materials attached to the inner wall of the grinding barrel fall down and are fully utilized.
Referring to fig. 1-2, two ventilation openings are cut at the outer end of a sealing frame 2, a dust screen 18 is fixedly connected to the inner wall of each ventilation opening, the dust screen 18 is made of stainless steel materials, an anti-rust coating is coated on the surface of the dust screen 18, the dust screen 18 is provided with the anti-rust coating, the anti-rust coating is coated on the outer end of the sealing frame 2, dust is prevented from entering the sealing frame 2 and a grinding barrel 1 through the dust screen 18 in the air circulation process, the dust screen 18 is prevented from being corroded easily in the use process, the service life of the dust screen is prolonged, a feed opening is formed at the outer end of the sealing frame 2, two movable doors 201 are rotatably connected to the feed opening, the two movable doors 201 are in close contact with each other, a handle is fixedly connected to the outer end of each movable door 201, the feed opening and the opening are achieved through the arrangement of the movable doors 201 and the handle, and feeding and taking of workers are facilitated.
Referring to fig. 2-4, the grinding ball body 5 and the ball body 20 are made of a high molecular material, the waterproof breathable film 10 and the waterproof breathable plate 11 are made of a novel high molecular waterproof material, the grinding ball body 5 and the ball body 20 made of the high molecular material have good breathable functions, the waterproof breathable film 10 and the waterproof breathable plate 11 made of the novel high molecular material can play a waterproof role, and can ensure air circulation, the release valve 13 is in a gathering state when not squeezed, the release valve 13 is in an opening state after being squeezed, the release valve 13 can make catalase not fall easily when in the gathering state, the release valve 13 is in an opening state after being squeezed, the catalase can fall off, the shape-changing memory strip 19 is made of a shape memory metal material, the initial state of the shape-change memory strip 19 is a furled state, the shape-change memory strip 19 is made of shape-change memory alloy materials and has a memory function, after the temperature rises, the shape-change memory strip 19 is heated and deformed, the furled state is converted into a blooming and dropping state, and after the temperature falls, the shape-change memory strip begins to return to the initial state.
In the invention, when the related technicians use the device, firstly, when the air-permeable grinding ball 5 grinds the bentonite type rheological additive raw material, heat is generated to make the expansion airbag 8 expand by heating, when the air-permeable grinding ball 5 is driven to be upwards high by the electric telescopic rod 4, the material adhered to the surface of the air-permeable grinding ball falls off, the expansion airbag 8 slightly contracts when being cold, then the air-permeable grinding ball 5 moves downwards under the driving of the electric telescopic rod 4 and receives air resistance to extrude the expansion airbag 8, so that the gas in the expansion airbag 8 is blown into hydrogen peroxide, the hydrogen peroxide is sprayed out by matching the back and forth movement of the air-permeable grinding ball 5 through the blowing of the gas to impact the release valve 13, so that the release valve is extruded and opened, catalase falls off, the hydrogen peroxide is catalyzed to be decomposed into water and oxygen, meanwhile, the heat is released, the air flows fast through the oxygen and the heating, and the rotating fan blades 14 are rotated, in the rotation process of the rotating fan blade 14, when the magnet block 15 corresponds to the magnetic ball 17, the magnetic ball 17 knocks the air-permeable grinding ball 5 under the assistance of the elastic rope 16 and the rubber buffer cover 1701 through the action of like-pole repulsion, so that the raw material remained on the surface of the air-permeable grinding ball falls off, and the heat overflows outwards, so that the deformation memory strip 19 is deformed by heat, falls off outwards, the adsorption block 22 is promoted to adsorb the grinding barrel 1, meanwhile, the collision small balls 21 in the air-permeable balloon 20 are blown by air flow to collide with each other to generate vibration, and the vibration is transmitted to the grinding barrel 1, so that the raw material adhered to the inner wall of the air-permeable grinding ball falls off, thereby being fully utilized and reducing the resource waste.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (9)
1. A degradable protective film and a preparation process thereof are characterized in that: the method comprises the following steps:
s1, firstly, slowly stirring 1.0% of sodium alginate, adding the sodium alginate into deionized water at 50-60 ℃ to prepare 1.0% of aqueous solution, then adding 1.0% of emulsifier, emulsifying for 5 minutes, adding 2.0% of carboxymethyl chitosan aqueous solution according to the weight ratio of 1: 3, and continuously stirring for 30 minutes to prepare stable emulsion;
s2, preparing a first polyvinyl alcohol aqueous solution and a second polyvinyl alcohol aqueous solution which are respectively 4% and have alcoholysis degrees of 89% and 99%, fully mixing the two solutions in equal proportion, adding 2.0% of glycerin, and stirring for 30 minutes to prepare polyvinyl alcohol slurry;
s3, mixing 2.0% of titanium dioxide, 98.4% of mixed solvent of methanol and dibasic acid ester and 0.6% of bentonite rheological additive which is fully ground by a grinding device to prepare pigment slurry, and then mixing the emulsion, polyvinyl alcohol slurry and pigment slurry according to a certain proportion to prepare film forming liquid;
s4, mixing 40.0-25.0% of deionized water, 50.0-54.0% of film liquid, 0.6-1.5% of xanthan gum, 0.3-0.8% of CMC-sodium, 3.5-10.0% of dihydric alcohol or trihydric alcohol condensate, 1.2-4.0% of triacetin and 0.2-0.4% of preservative fully, and preparing into the degradable protective film.
2. A degradable protective film according to claim 1 and its preparation process, characterized in that: the grinding device in the S3 comprises a grinding barrel (1), wherein a sealing frame (2) is fixedly connected to the upper end of the grinding barrel (1), a motor (3) is installed at the upper end of the sealing frame (2), an electric telescopic rod (4) is rotatably connected to the inner top end of the sealing frame (2), the output end of the motor (3) is fixedly connected with the electric telescopic rod (4), a breathable grinding sphere (5) is fixedly connected to the lower end of the electric telescopic rod (4), a storage cup (6) is fixedly connected to the inner part of the breathable grinding sphere (5), hydrogen peroxide is filled in the storage cup (6), two fixing plates (7) are fixedly connected between the storage cup (6) and the inner bottom end of the breathable grinding sphere (5), an expansion airbag (8) is arranged between the two fixing plates (7), and the expansion airbag (8) is fixedly connected with the breathable grinding sphere (5), the inflatable grinding ball is characterized in that an air guide tube (9) is fixedly connected between the inflatable air bag (8) and the breathable grinding ball body (5), the air guide tube (9) is communicated with the inflatable air bag (8) and the inside of the breathable grinding ball body (5) respectively, a waterproof breathable film (10) is fixedly connected in the air guide tube (9), a waterproof breathable plate (11) is fixedly connected in the storage cup (6), a plurality of uniformly distributed release balls (12) are fixedly connected at the lower end of the waterproof breathable plate (11), a release opening is formed in the outer end of each release ball (12), a release valve (13) is fixedly connected to the inner wall of each release opening, the initial state of each release valve (13) is a gathering state, catalase is filled in each release ball (12), and two striking mechanisms are arranged at one end, far away from each other, of the fixing plate (7).
3. A degradable protective film and process for preparing the same according to claim 2, wherein: striking mechanism is including rotating flabellum (14), it rotates with fixed plate (7) to rotate flabellum (14) and is connected, the outer end fixedly connected with magnet piece (15) of rotating flabellum (14), fixed connection has stretch cord (16) between ventilative grinding spheroid (5) and storage cup (6), the outer end of stretch cord (16) is cup jointed magnetic ball (17), the outer pot head of magnetic ball (17) is equipped with rubber cushion collar (1701), the one end that magnetic ball (17) and magnet piece (15) are close to each other sets up for the same sex.
4. A degradable protective film and process for preparing the same according to claim 2, wherein: the outer end fixedly connected with of seal frame (2) a plurality of evenly distributed's deformation memory strip (19), the outer end fixedly connected with of deformation memory strip (19) adsorbs piece (22), the outer end of deformation memory strip (19) has cup jointed ventilative ball (20), the inside of ventilative ball (20) is equipped with a plurality of collision bobbles (21).
5. A degradable protective film and process for preparing the same according to claim 2, wherein: the outer end of the sealing frame (2) is provided with two ventilation openings, the inner walls of the ventilation openings are fixedly connected with dust screens (18), the dust screens (18) are made of stainless steel materials, and the surfaces of the dust screens (18) are coated with antirust coatings.
6. A degradable protective film and process for preparing the same according to claim 2, wherein: the outer end of sealing frame (2) is opened chisel and is had the charge door, the charge door internal rotation is connected with two dodge gates (201), and two dodge gates (201) each other in close contact with, the outer end fixedly connected with handle of dodge gate (201).
7. A degradable protective film and a preparation process thereof according to claim 4, wherein: the breathable grinding ball body (5) and the breathable ball (20) are made of high-molecular breathable materials, and the waterproof breathable film (10) and the waterproof breathable plate (11) are made of novel high-molecular waterproof materials.
8. A degradable protective film and process for preparing the same according to claim 2, wherein: the release valve (13) is in a gathered state when not squeezed, and the release valve (13) is in an open state after being squeezed.
9. A degradable protective film and a preparation process thereof according to claim 4, wherein: the shape memory strip (19) is made of shape memory metal materials, and the initial state of the shape memory strip (19) is a furled state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111225370.1A CN113831564A (en) | 2021-10-21 | 2021-10-21 | Degradable protective film and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111225370.1A CN113831564A (en) | 2021-10-21 | 2021-10-21 | Degradable protective film and preparation process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113831564A true CN113831564A (en) | 2021-12-24 |
Family
ID=78965743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111225370.1A Pending CN113831564A (en) | 2021-10-21 | 2021-10-21 | Degradable protective film and preparation process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113831564A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114259062A (en) * | 2021-12-28 | 2022-04-01 | 浙江省农业科学院 | Preparation method, equipment and application of prebiotic composition for efficiently regulating intestinal flora |
| CN114453103A (en) * | 2022-02-08 | 2022-05-10 | 罗文章 | Quick grinder of medicine for paediatrics |
| CN115260938A (en) * | 2022-07-26 | 2022-11-01 | 深圳市润海电子有限公司 | Method for manufacturing environment-friendly two-dimensional code adhesive tape for tracing |
| CN115739295A (en) * | 2022-10-21 | 2023-03-07 | 南通通途机电制造有限公司 | Anti-adhesion type macromolecular material grinding machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1218973A (en) * | 1979-07-13 | 1987-03-10 | Socared S.A. | Wear and abrasion resistant wall structure, particularly for mills for grinding a charge comprising magnetic material |
| CN103540203A (en) * | 2012-07-13 | 2014-01-29 | 上海立昌环境工程有限公司 | Degradable multifunctional protective film |
| CN206853811U (en) * | 2017-04-26 | 2018-01-09 | 江山海维科技有限公司 | A kind of milling apparatus that liquid stearic acid calcium product is levigate |
| CN112958245A (en) * | 2021-02-05 | 2021-06-15 | 胡勇飞 | Sealed raw materials grinder that glues |
| CN113117884A (en) * | 2021-04-10 | 2021-07-16 | 韩庆磊 | Iron ore screening device |
| CN113180067A (en) * | 2021-04-03 | 2021-07-30 | 江玉芳 | Pure natural plant insecticide and preparation method thereof |
| CN113510250A (en) * | 2021-07-20 | 2021-10-19 | 苏州研拓自动化科技有限公司 | Multi-material high-precision high-speed material increasing and decreasing integrated intelligent manufacturing equipment |
-
2021
- 2021-10-21 CN CN202111225370.1A patent/CN113831564A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1218973A (en) * | 1979-07-13 | 1987-03-10 | Socared S.A. | Wear and abrasion resistant wall structure, particularly for mills for grinding a charge comprising magnetic material |
| CN103540203A (en) * | 2012-07-13 | 2014-01-29 | 上海立昌环境工程有限公司 | Degradable multifunctional protective film |
| CN206853811U (en) * | 2017-04-26 | 2018-01-09 | 江山海维科技有限公司 | A kind of milling apparatus that liquid stearic acid calcium product is levigate |
| CN112958245A (en) * | 2021-02-05 | 2021-06-15 | 胡勇飞 | Sealed raw materials grinder that glues |
| CN113180067A (en) * | 2021-04-03 | 2021-07-30 | 江玉芳 | Pure natural plant insecticide and preparation method thereof |
| CN113117884A (en) * | 2021-04-10 | 2021-07-16 | 韩庆磊 | Iron ore screening device |
| CN113510250A (en) * | 2021-07-20 | 2021-10-19 | 苏州研拓自动化科技有限公司 | Multi-material high-precision high-speed material increasing and decreasing integrated intelligent manufacturing equipment |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114259062A (en) * | 2021-12-28 | 2022-04-01 | 浙江省农业科学院 | Preparation method, equipment and application of prebiotic composition for efficiently regulating intestinal flora |
| CN114259062B (en) * | 2021-12-28 | 2023-12-22 | 浙江省农业科学院 | Preparation method, equipment and application of prebiotic composition for efficiently regulating intestinal flora |
| CN114453103A (en) * | 2022-02-08 | 2022-05-10 | 罗文章 | Quick grinder of medicine for paediatrics |
| CN115260938A (en) * | 2022-07-26 | 2022-11-01 | 深圳市润海电子有限公司 | Method for manufacturing environment-friendly two-dimensional code adhesive tape for tracing |
| CN115260938B (en) * | 2022-07-26 | 2024-07-19 | 深圳市润海电子有限公司 | Manufacturing method of environment-friendly two-dimensional code adhesive tape capable of being used for tracing |
| CN115739295A (en) * | 2022-10-21 | 2023-03-07 | 南通通途机电制造有限公司 | Anti-adhesion type macromolecular material grinding machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113831564A (en) | Degradable protective film and preparation process thereof | |
| US20110224317A1 (en) | Spray foams with fine particulate blowing agent | |
| CN114162472B (en) | Medicine bin for livestock raising and beast raising | |
| CN113427316A (en) | Metal cutting method and equipment | |
| CN113957992B (en) | Heat insulation system and heat insulation method for building | |
| CN113334219B (en) | Hardware machining method | |
| CN110266140B (en) | Construction equipment for constructional engineering | |
| CN115260938B (en) | Manufacturing method of environment-friendly two-dimensional code adhesive tape capable of being used for tracing | |
| CN209869152U (en) | Drying machine for ABS resin before injection molding | |
| CN217682356U (en) | Intelligent fire control fan of environmental protection | |
| CN206113258U (en) | Air conditioner indoor unit and air conditioner | |
| CN110107955A (en) | Wall-mounted unit with upper air outlet and lower air outlet, air outlet control method of wall-mounted unit and air conditioner | |
| CN115633585A (en) | Intelligent grain storage bin | |
| CN113910298A (en) | Protective hood for six-axis mechanical arm | |
| CN214887812U (en) | Wind gathering type fan | |
| CN115157044A (en) | Low-temperature efficient polishing method for pipe orifice for die machining | |
| CN109499934B (en) | Monitoring equipment | |
| CN208372954U (en) | The multi-functional mixing apparatus of thermal insulation coatings | |
| CN207365809U (en) | A kind of anti-riot helmet | |
| CN213657383U (en) | A drying equipment for amino acid derivative production | |
| CN201363863Y (en) | Cabinet air conditioner with lifting door | |
| CN114509101B (en) | Natural environment monitoring device | |
| CN220247490U (en) | Waterproof heat preservation construction equipment of adjustable outer wall of scope | |
| CN217761843U (en) | Viscous damper with accelerated cooling function | |
| CN117925111A (en) | Anti-corrosion process for surface of pet handle-free door plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211224 |