CN114196125B - Gas mask body sizing material and preparation method thereof - Google Patents
Gas mask body sizing material and preparation method thereof Download PDFInfo
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- CN114196125B CN114196125B CN202111674515.6A CN202111674515A CN114196125B CN 114196125 B CN114196125 B CN 114196125B CN 202111674515 A CN202111674515 A CN 202111674515A CN 114196125 B CN114196125 B CN 114196125B
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- 239000000463 material Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000004513 sizing Methods 0.000 title abstract description 16
- 229920001971 elastomer Polymers 0.000 claims abstract description 48
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 39
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 25
- 229920005556 chlorobutyl Polymers 0.000 claims abstract description 22
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 20
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 18
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 16
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 238000007599 discharging Methods 0.000 claims description 20
- 238000002156 mixing Methods 0.000 claims description 12
- 239000005662 Paraffin oil Substances 0.000 claims description 11
- MIMDHDXOBDPUQW-UHFFFAOYSA-N dioctyl decanedioate Chemical compound CCCCCCCCOC(=O)CCCCCCCCC(=O)OCCCCCCCC MIMDHDXOBDPUQW-UHFFFAOYSA-N 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- 239000002390 adhesive tape Substances 0.000 claims description 8
- 235000021355 Stearic acid Nutrition 0.000 claims description 7
- 239000000395 magnesium oxide Substances 0.000 claims description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 7
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 7
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 7
- 239000008117 stearic acid Substances 0.000 claims description 7
- 239000006229 carbon black Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims description 4
- 239000004014 plasticizer Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000010008 shearing Methods 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000004902 Softening Agent Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims 2
- YHMYGUUIMTVXNW-UHFFFAOYSA-N 1,3-dihydrobenzimidazole-2-thione Chemical compound C1=CC=C2NC(S)=NC2=C1 YHMYGUUIMTVXNW-UHFFFAOYSA-N 0.000 claims 1
- 239000003963 antioxidant agent Substances 0.000 claims 1
- 230000003078 antioxidant effect Effects 0.000 claims 1
- 238000005520 cutting process Methods 0.000 claims 1
- 239000004945 silicone rubber Substances 0.000 abstract description 10
- 244000043261 Hevea brasiliensis Species 0.000 abstract description 6
- 229920003052 natural elastomer Polymers 0.000 abstract description 6
- 229920001194 natural rubber Polymers 0.000 abstract description 6
- QKSKPIVNLNLAAV-UHFFFAOYSA-N bis(2-chloroethyl) sulfide Chemical compound ClCCSCCCl QKSKPIVNLNLAAV-UHFFFAOYSA-N 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 229920005555 halobutyl Polymers 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000011787 zinc oxide Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 229920002725 thermoplastic elastomer Polymers 0.000 description 3
- 239000004636 vulcanized rubber Substances 0.000 description 3
- 241000208125 Nicotiana Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- 230000007123 defense Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- HMUNWXXNJPVALC-UHFFFAOYSA-N 1-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)C(CN1CC2=C(CC1)NN=N2)=O HMUNWXXNJPVALC-UHFFFAOYSA-N 0.000 description 1
- 241000219198 Brassica Species 0.000 description 1
- 235000003351 Brassica cretica Nutrition 0.000 description 1
- 235000003343 Brassica rupestris Nutrition 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920005557 bromobutyl Polymers 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000010460 mustard Nutrition 0.000 description 1
- 229920001206 natural gum Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/28—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or halogen-containing compounds
- C08L23/283—Iso-olefin halogenated homopolymers or copolymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a gas mask body sizing material and a preparation method thereof, wherein the sizing material comprises the following raw materials in parts by weight: 60-100 parts of chlorinated butyl rubber, 5-20 parts of silicone rubber, 5-20 parts of natural rubber, 1-2 parts of accelerator, 0.2-1.4 parts of vulcanizing agent, 30-50 parts of reinforcing agent, 4-8 parts of softener, 2-4 parts of anti-aging agent and 10-15 parts of rubber auxiliary agent masterbatch. The cold resistance of the gas mask body sizing material is more than or equal to grade II after being frozen for 72 hours at the temperature of minus 32 ℃ to minus 28 ℃, the protection time of mustard gas liquid-gas is more than or equal to 24 hours, the tensile strength is up to 15.0MPa, and the comfort is improved compared with that of a single chlorinated butyl rubber cover body.
Description
Technical Field
The invention relates to the technical field of rubber industry, in particular to a gas mask cover sizing material and a preparation method thereof.
Background
The gas mask body rubber is generally made of halogenated butyl rubber or natural rubber alone, and has good gas resistance performance but poor wearing comfort due to poor gas permeability of the halogenated butyl rubber. CN107189246a discloses a gas mask cover made by blending brominated butyl rubber and silicone rubber, which has better gas protection performance, and improves compatibility and wearing comfort.
The inventor researches and discovers that the problem of cover claw fracture often exists when the chlorinated butyl rubber is used as the main rubber, and customer satisfaction is affected. The added silicone rubber has low strength, and the chlorinated butyl rubber and the silicone rubber are used together, so that the risk of pulling and pulling is increased when the wear is carried out.
Disclosure of Invention
The invention provides a gas mask body sizing material and a preparation method thereof, and the gas mask body manufactured by the sizing material not only meets the requirement of the biochemical protection of a gas mask core, improves the tensile property during wearing, but also meets the requirement of wearing comfort.
The technical scheme of the invention is that the breathing mask body sizing material comprises the following raw materials in parts by weight:
60-100 parts of chlorinated butyl rubber, 5-20 parts of silicone rubber, 5-20 parts of natural rubber, 1-2 parts of accelerator, 0.2-1.4 parts of vulcanizing agent, 30-50 parts of reinforcing agent, 4-8 parts of softener, 2-4 parts of anti-aging agent and 10-15 parts of rubber auxiliary agent masterbatch.
Further, the promoter is ZDC.
Further, the vulcanizing agent is a double 25 and TB710 resin, wherein the double 25.1-1 parts and the TB710 resin 0.1-0.4 parts.
Further, the reinforcing agent is carbon black N220.
Further, the softener is dioctyl sebacate and paraffin oil, wherein, 3 to 8 parts of dioctyl sebacate and 1 to 3 parts of paraffin oil.
Further, the anti-aging agent comprises 1-2 parts of an anti-aging agent methylene 4426S and 1-2 parts of an anti-aging agent MB.
Further, the rubber auxiliary agent masterbatch is extruded particles obtained by mixing and discharging chlorinated butyl rubber, a plasticizer and a surfactant to prepare a masterbatch, and then adding zinc oxide, magnesium oxide, stearic acid and naphthenic oil.
The invention also relates to a method for preparing said respirator mask body stock, comprising the steps of:
step 1: making the mixed rubber, plasticating raw rubber to 60 ℃, adding a reinforcing agent, a softening agent and an anti-aging agent, turning over, adding rubber auxiliary agent masterbatch at 100 ℃, adding an accelerator and a TB710 resin vulcanizing agent at 115 ℃, discharging at 125 ℃, adding double 25 into open mill, turning over, and uniformly mixing;
step 2: discharging sheets by a sheet discharging three-roller calender;
step 3: vulcanizing and vulcanizing at 170+ -3deg.C for 9min under 15+ -1 Mpa.
Further, the dimension of the sheet obtained in the step 2 is 6+/-1 mm in thickness and 12+/-1 mm in width.
Further, when the three-roller calender is used for discharging sheets, the adhesive tape is wound on the cylindrical trolley while discharging sheets.
The invention has the following beneficial effects:
the invention uses the chlorinated butyl rubber, the silicon rubber and the natural rubber as main materials to manufacture the gas mask cover body, thereby not only meeting the requirement of nuclear biochemical protection of the gas mask and improving wearing comfort, but also solving the problems of low strength of the cover body and easy breakage in the use process of customers due to the single use of halogenated butyl rubber or the combination of halogenated butyl rubber and silicon rubber. The chlorinated butyl rubber has high storage stability, does not need to add a stabilizer, has lower air permeability, but has poor wearing comfort; the silicone rubber has high flexibility, is soft and comfortable to contact with skin, and is environment-friendly and nontoxic; meanwhile, the natural rubber is added, so that the mechanical property of the material is improved, and particularly, the tensile property of the product during wearing is enhanced.
In the ingredients adopted by the invention, dioctyl sebacate and paraffin oil have good compatibility, so that the flowability of the sizing material is enhanced; the carbon black N220 increases the strength of the sizing material, and further enhances the tensile property of the product when worn. And adding an anti-aging agent A, B to enhance the aging resistance of the sizing material.
In the formula of the sizing material, 1301 chlorinated butyl rubber is preferred, the chlorinated butyl rubber is domestic rubber, the source is stable, the problems that imported sizing materials are needed to be adopted in the existing product and the source is unstable are solved, the product provided by the invention has excellent high and low temperature resistance and weather resistance, and part of auxiliary agents are added in the form of masterbatch particles, so that the invention has the advantages of no dust, easy dispersion, improvement of mixing efficiency, good storage stability and the like.
The sizing material has low permeability, strong elasticity and good processability. The cold resistance of the rubber material frozen at the temperature of minus 32 ℃ to minus 28 ℃ for 72 hours is more than or equal to grade II, the protection time of the liquid-gas of the mustard gas is more than or equal to 24 hours, and the comfort is greatly improved compared with that of a single chlorinated butyl rubber cover body.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to examples, but it will be understood by those skilled in the art that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention.
The gas mask cover body is used in a nuclear biochemical toxic agent environment, the special working environment is considered, the rubber material is required to have low permeability, certain high and low temperature resistance, chemicals resistance, weather resistance, stronger elasticity and better processability, and chlorinated butyl rubber 1301 is selected for comprehensive consideration in order to ensure stable raw material sources. But chlorinated butyl rubber has lower air permeability and poor wearing comfort. The silicone rubber has high flexibility, is soft and comfortable to contact with skin, is environment-friendly and nontoxic, and has excellent high and low temperature resistance and weather resistance. Therefore, the present invention is used in combination with silicone rubber. The combination of the silicone rubber and the chlorinated butyl rubber reduces the strength of the rubber material, increases the tearing risk during use, selects the high-strength natural rubber and enhances the strength of the rubber material, and enhances the tearing resistance of the product during wearing.
In the following examples, chlorinated butyl rubber is chlorinated butyl rubber 1301 (available from Seiyaku Zhejiang Xinhui New Material Co., ltd.); the silicon rubber is silicon rubber RBB-2420-703; the natural gum is No. 1 tobacco flake gum. Double 25 is C-14A; the reinforcing agent is carbon black N220; the anti-aging agent A is an anti-aging agent methylene 4426S; the anti-aging agent B is an anti-aging agent MB.
The rubber auxiliary agent masterbatch is extruded particles obtained by mixing and discharging chlorinated butyl rubber, a plasticizer and a surfactant to prepare a masterbatch, and then adding zinc oxide, magnesium oxide, stearic acid and naphthenic oil. The main active ingredients of the composition are zinc oxide, magnesium oxide and stearic acid.
The specific preparation process of the rubber auxiliary agent masterbatch used in the following examples comprises the following steps:
and (3) mixing: chlorinated butyl rubber: and (3) a plasticizer: the weight ratio of the surfactant is 75:20:5, adding the mixture into an internal mixer, gradually increasing the temperature through shearing action of equipment and friction among materials, and discharging when the temperature reaches 100 ℃.
(1) Pressing into tablets: pressing the mixed product into mother film, and cooling to below 60deg.C.
(2) Two-stage mixing: zinc oxide powder: stearic acid: magnesium oxide powder: mother film: naphthenic oil comprises the following components in percentage by mass: 10:2:10:8, and gradually increasing the temperature to 50 ℃ through the shearing action of equipment, the friction between materials and the friction between materials, and discharging.
(3) Extruding and granulating: single screw extrusion is cut into particles, and a separating agent is added and cooled through a primary cyclone and a vibrating screen.
(4) Packaging to obtain the rubber auxiliary agent masterbatch.
The invention will now be further described with reference to examples:
the compound formulations of examples 1-3 are shown in Table 1.
TABLE 1
The preparation method of the sizing materials in the examples 1 to 3 is specifically as follows:
step 1: preparation of rubber compound
The raw rubber of the internal mixer is plasticated to 60 ℃, the reinforcing agent, dioctyl sebacate, paraffin oil, the anti-aging agent A and B are added, the internal mixer is turned over, a cleaning key is pressed at 80 ℃, an upper top bolt is lifted, the residual materials are cleaned, rubber auxiliary agent masterbatch is added at 100 ℃, the ZDC and TB710 resin vulcanizing agent is added at 115 ℃, the materials are discharged at 125 ℃, the double 25 is added in the open mill, the turning over and the uniform mixing are carried out. Parking for at least 24 hours.
Step 2: discharging the sheet by a sheet discharging three-roller calender, wherein the thickness of the discharged sheet is controlled as follows: 6+ -1 mm and width 12+ -1 mm. The adhesive tape is wound on the cylindrical trolley while the adhesive tape is discharged.
Step 3: vulcanizing, namely placing the adhesive tape into an injection feed inlet, setting the temperature of a feed cylinder to 80 ℃, vulcanizing the injection, and vulcanizing conditions: the temperature is 170+/-3 ℃, the time is 9min, and the pressure is 15+/-1 Mpa.
The properties of the compounds in examples 1 to 3 are shown in Table 2.
1) Tensile Strength, elongation at Break, permanent deformation at Break according to GB/T528-2009 test of tensile stress Strain Performance of vulcanized rubber or thermoplastic rubber,
2) Hardness vulcanized rubber or thermoplastic rubber press-in hardness test method part 1 according to GB/T531.1-2008: shore hardness testing method (Shore hardness)
3) Tear Strength determination of the tear Strength of vulcanized rubber or thermoplastic rubber according to GB/T529-2008 (trouser, right angle and crescent shaped samples)
4) Cold resistance
The method is formulated by referring to the test method of the cold resistance of HG6-686-67 rubber.
4.1 test procedure
4.1.1 cold resistance tests were performed in a freezer.
4.1.2 placing the parts in a freezing chamber at-28-32 ℃ for three days and nights, and hanging the similar parts in the freezing chamber according to the manufacturing date, so that the distance between the parts and the chamber wall and the chamber bottom is not less than 1.0 cm.
4.1.3 appearance inspection of the parts was performed every 24 hours from the time of loading the parts into the freezer, and cold resistance of the parts was judged in stages.
4.1.4 attaching a label to the part, noting the time the part was taken into the chamber and the time it was taken out of the freezer, and recording the results of each inspection.
4.2 criteria for discrimination
The cold resistance of the parts is judged according to the following four stages:
first stage-after the rubber is bent back and forth to 180 degrees twice or impacted on a hard object, the rubber is cracked and broken.
The second stage, the rubber is very "rough" and becomes extremely hard, but does not crack or break after being bent back and forth or impacted onto a hard object.
Third stage-the rubber becomes dull but still retains its own elasticity.
Fourth level-rubber retains the original quality.
4.3 test results
And obtaining a total test result according to the record of the checking result shown on the label, and writing a report.
5) For the protection time of mustard gas from liquid to gas
Method for measuring gas (liquid-gas) gas defense time of mustard according to GJB 535-1998 isolated gas defense coating material
TABLE 2
Example 4 and comparative examples 1 to 3 were additionally provided, and the specific ingredients are shown in Table 3 below.
TABLE 3 Table 3
| Sequence number | Material name | Example 4 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| 1 | Chlorinated butyl rubber 1301 | 75 | 80 | 80 | 75 |
| 2 | Silicone rubber | 10 | 20 | 0 | 10 |
| 3 | No. 1 tobacco flake adhesive | 15 | 0 | 20 | 15 |
| 4 | Rubber auxiliary agent masterbatch | 14.4 | 14.4 | 14.4 | 0 |
| 5 | TB710 resin vulcanizing agent | 0.3 | 0 | 0.4 | 0.3 |
| OxidationZinc alloy | 0 | 0 | 0 | 10 | |
| Magnesium oxide | 0 | 0 | 0 | 0.3 | |
| Stearic acid | 0 | 0 | 0 | 1.5 | |
| 6 | Promoter ZDC | 0.4 | 0.4 | 0.4 | 0.4 |
| 7 | Double 25 | 0.1 | 0.2 | 0 | 0.1 |
| 10 | Reinforcing agent carbon black | 35 | 35 | 35 | 35 |
| 11 | Dioctyl sebacate | 5 | 5 | 5 | 5 |
| 12 | Paraffin oil | 2 | 2 | 2 | 2 |
| 13 | Anti-aging agent methylene 4426S | 1 | 1 | 1 | 1 |
| 14 | Anti-aging agent MB | 1 | 1 | 1 | 1 |
The preparation method of the rubber compounds in the above example 4 and comparative examples 1 to 3 is specifically as follows:
example 4:
step 1: preparation of rubber compound
The raw rubber of the internal mixer is plasticated to 60 ℃, the reinforcing agent, dioctyl sebacate, paraffin oil, the anti-aging agent A and the anti-aging agent B are added, the internal mixer is turned over, a cleaning key is pressed at 80 ℃, an upper top bolt is lifted, the residual materials are cleaned, rubber auxiliary agent masterbatch is added at 100 ℃, the ZDC and TB710 resin vulcanizing agent is added at 115 ℃, the materials are discharged at 125 ℃, and the two groups of the internal mixer and the double group of the internal mixer are added at 25, so that the internal mixer is turned over and evenly mixed. Parking for at least 24 hours.
Step 2: discharging the sheet by a sheet discharging three-roller calender, wherein the thickness of the discharged sheet is controlled as follows: 6+ -1 mm and width 12+ -1 mm. The adhesive tape is wound on the cylindrical trolley while the adhesive tape is discharged.
Step 3: vulcanizing, namely placing the adhesive tape into an injection feed inlet, setting the temperature of a feed cylinder to 80 ℃, vulcanizing the injection, and vulcanizing conditions: the temperature is 170+/-3 ℃, the time is 9min, and the pressure is 15+/-1 Mpa.
Comparative example 1:
step 1: preparation of rubber compound
The raw rubber of the internal mixer is plasticated to 60 ℃, the reinforcing agent, dioctyl sebacate, paraffin oil, the anti-aging agent A and the anti-aging agent B are added, the internal mixer is turned over, a cleaning key is pressed at 80 ℃, an upper top bolt is lifted, the residual materials are cleaned, rubber auxiliary agent master batch particles are added at 100 ℃, ZDC is added at 115 ℃, discharge is carried out at 125 ℃, double 25 is added in the open mill, the turning over is carried out, and the mixing is uniform. Parking for at least 24 hours.
Step 2 and step 3 are the same as in example 4.
Comparative example 2:
step 1: preparation of rubber compound
The raw rubber of the internal mixer is plasticated to 60 ℃, the reinforcing agent, dioctyl sebacate, paraffin oil, the anti-aging agent A and the anti-aging agent B are added, the internal mixer is turned over, a cleaning key is pressed at 80 ℃, an upper top bolt is lifted, the residual materials are cleaned, rubber auxiliary agent masterbatch is added at 100 ℃, the ZDC and TB710 resin vulcanizing agent is added at 115 ℃, the materials are discharged at 125 ℃, and the internal mixer is turned over and evenly mixed. Parking for at least 24 hours.
Step 2 and step 3 are the same as in example 4.
Comparative example 3:
step 1: preparation of rubber compound
The raw rubber of the internal mixer is plasticated to 60 ℃, the reinforcing agent, dioctyl sebacate, paraffin oil, the anti-aging agent A and the anti-aging agent B are added, the internal mixer is turned over, a cleaning key is pressed at 80 ℃, an upper top bolt is lifted, the residual materials are cleaned, zinc oxide, magnesium oxide and stearic acid are added at 100 ℃, the ZDC and TB710 resin vulcanizing agent are added at 115 ℃, the materials are discharged at 125 ℃, the double 25 is added in the open mill, the turning over and the uniform mixing are carried out. Parking for at least 24 hours.
Step 2 and step 3 are the same as in example 4.
The properties of the compounds in the above examples 4 and comparative examples 1 to 3 are shown in Table 4.
TABLE 4 Table 4
The above embodiments are only preferred embodiments of the present invention and are not intended to limit the present invention, and any changes, additions, equivalents, modifications and the like that come within the spirit and principles of the invention are within the scope of the invention.
Claims (5)
1. A respirator hood material comprising the following materials by weight:
1301 80 parts of chlorinated butyl rubber, 5 parts of silicon rubber, 15 parts of No. 1 smoke sheet rubber, 14.4 parts of rubber auxiliary agent masterbatch, 0.3 part of TB710 resin vulcanizing agent, 25.05 parts of double, 0.4 part of accelerator ZDC, 35 parts of carbon black as a reinforcing agent, 5 parts of dioctyl sebacate, 2 parts of paraffin oil, 4426S 1 part of anti-aging agent methylene and MB1 part of anti-aging agent;
when the rubber auxiliary agent masterbatch is prepared, the preparation method comprises the following steps of: chlorinated butyl rubber: and (3) a plasticizer: the weight ratio of the surfactant is 75:20: 5. adding the materials into an internal mixer, gradually increasing the temperature through the shearing action of equipment and the friction between the materials, and discharging when the temperature reaches 100 ℃; pressing into tablets: pressing the mixed product into a mother film, and reducing the temperature to below 60 ℃; two-stage mixing: zinc oxide powder: stearic acid: magnesium oxide powder: mother film: adding naphthenic oil into an internal mixer according to a mass ratio of 70:10:2:10:8, gradually increasing the temperature through the shearing action of equipment and the friction between materials, and discharging when the temperature reaches 50 ℃; extruding and granulating: and (3) extruding by a single screw rod, cutting into particles, adding a release agent and cooling through a primary cyclone and a vibrating screen, and packaging to obtain the rubber auxiliary agent masterbatch.
2. The gas mask hood body material according to claim 1, wherein the raw materials are adjusted as follows: 1301 75 parts of chlorinated butyl rubber, 10 parts of silicon rubber, 15 parts of No. 1 smoke sheet rubber, 14.4 parts of rubber auxiliary agent masterbatch, 0.3 part of TB710 resin vulcanizing agent, 25.1 parts of double, 0.4 part of accelerator ZDC, 35 parts of carbon black as reinforcing agent, 5 parts of dioctyl sebacate, 2 parts of paraffin oil, 4426S 1 part of antioxidant methylene and 1 part of antioxidant MB.
3. A method of making the respirator facepiece stock of any one of claims 1-2, comprising the steps of:
step 1: making the mixed rubber, plasticating raw rubber to 60 ℃, adding a reinforcing agent, a softening agent and an anti-aging agent, turning over, adding rubber auxiliary agent masterbatch at 100 ℃, adding an accelerator and a TB710 resin vulcanizing agent at 115 ℃, discharging at 125 ℃, adding double 25 into open mill, turning over, and uniformly mixing;
step 2: discharging sheets by a sheet discharging three-roller calender;
step 3: vulcanizing and vulcanizing at 170+/-3 ℃ for 9min under 15+/-1 MPa.
4. A method of preparation according to claim 3, characterized in that: the dimension of the sheet in the step 2 is 6+/-1 mm in thickness and 12+/-1 mm in width.
5. A method of preparation according to claim 3, characterized in that: when the three-roller calender is used for discharging sheets, the adhesive tape is wound on the cylindrical trolley while discharging sheets.
Priority Applications (1)
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Citations (4)
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|---|---|---|---|---|
| WO1999046008A1 (en) * | 1998-03-10 | 1999-09-16 | The Secretary Of State For Defence | Respirator mask with detachable seal |
| CN103709536A (en) * | 2013-12-06 | 2014-04-09 | 湖北华强科技有限责任公司 | Antigas mask cover body and preparation method therefor |
| CN104194069A (en) * | 2014-08-12 | 2014-12-10 | 湖北华强科技有限责任公司 | Composite rubber, preparation method of composite rubber and application of composite rubber in protective mask exhalation valve |
| CN105255028A (en) * | 2015-11-12 | 2016-01-20 | 山西新华化工有限责任公司 | Chlorinated butyl rubber and silicone rubber blended material |
-
2021
- 2021-12-31 CN CN202111674515.6A patent/CN114196125B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999046008A1 (en) * | 1998-03-10 | 1999-09-16 | The Secretary Of State For Defence | Respirator mask with detachable seal |
| CN103709536A (en) * | 2013-12-06 | 2014-04-09 | 湖北华强科技有限责任公司 | Antigas mask cover body and preparation method therefor |
| CN104194069A (en) * | 2014-08-12 | 2014-12-10 | 湖北华强科技有限责任公司 | Composite rubber, preparation method of composite rubber and application of composite rubber in protective mask exhalation valve |
| CN105255028A (en) * | 2015-11-12 | 2016-01-20 | 山西新华化工有限责任公司 | Chlorinated butyl rubber and silicone rubber blended material |
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| 呼吸器罩体用CIIR/NR并用胶的制备与表征;王得印等;《特种橡胶制品》;20161031;第37卷(第05期);8-13 * |
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