CN110092927A - The preparation method of lightweight rubber composite elastic body - Google Patents
The preparation method of lightweight rubber composite elastic body Download PDFInfo
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- CN110092927A CN110092927A CN201910462977.8A CN201910462977A CN110092927A CN 110092927 A CN110092927 A CN 110092927A CN 201910462977 A CN201910462977 A CN 201910462977A CN 110092927 A CN110092927 A CN 110092927A
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/04—Plastics, rubber or vulcanised fibre
-
- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
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- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
- C08J3/246—Intercrosslinking of at least two polymers
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- 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
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/02—Cellulose; Modified cellulose
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- 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
- C08J2307/00—Characterised by the use of natural rubber
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- 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
- C08J2309/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
- C08J2309/02—Copolymers with acrylonitrile
-
- 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
- C08J2309/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
- C08J2309/06—Copolymers with styrene
-
- 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
- C08J2313/00—Characterised by the use of rubbers containing carboxyl groups
-
- 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
- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
-
- 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
- C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2403/02—Starch; Degradation products thereof, e.g. dextrin
-
- 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
-
- 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
- C08J2433/00—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 only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
- C08K5/1535—Five-membered rings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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Abstract
The invention discloses a kind of preparation methods of lightweight rubber composite elastic body, this method is by the way of emulsion blending, rubber latex is compound with water-soluble polymer solution, and the aeroge technology of preparing of freeze-drying is combined, prepare the rubber composite material of lightweight.Rubber accounting is 50%~90% in entire composite material, and the density of composite material is 0.28g/cm3~0.80g/cm3, density can change optionally.This method adequately combines emulsion blending and aeroge technology, provides a kind of novel thinking for preparation lightweight rubber composite elastic body material, has widened thinking for the physics boring technique of footwear material, and system is using aqueous solution, environmentally protective, simple process.
Description
Technical field
The present invention relates to technical field of rubber material, more particularly to a kind of preparation side of lightweight rubber composite elastic body
Method.
Background technique
Rubber is the high amorphous polymer of a kind of elasticity, also has good insulating properties, leakproofness, has after crosslinked
There is good mechanical performance, thus is widely used in all trades and professions.In footwear material, vulcanized rubber because have anti-skid antiwear,
Preferable mechanical performance and be used as footwear material outsole.But general vulcanized rubber is unfavorable for developing high performance super than great
Light shoes.Currently, be more common in report about preparation lightweight rubber sole is change by rubber compounding, and final lightweight
It is lower.The rubber material of lightweight also uses foaming technique in order to obtain, but usually requires the various auxiliary materials of addition, complex process, at
This height, and be gradually eliminated.
From the point of view of the technique of footwear material, belonging to physics pore-creating at present has TPU air cushion, and the supercritical foaming and 3D of puffed rice are beaten
Print: the supercritical foaming of puffed rice relative to chemical blowing should be it is more environmentally friendly, excessive harmful chemical will not be generated, and
And rice krispies floral material does not generate chemical crosslinking, can be achieved on to a certain extent recyclable；3D printing be equivalent to it is structural can
Pore-creating is controlled, can also regard a kind of physics boring technique as, 3D printing can be accomplished significantly to automate.Although puffed rice
It is larger in the also not up to diversified and current cost of structure design with 3D printing, the more important for needing to see is felt, by function
Energy property forecloses, and puffed rice and 3D printing have proposed challenge to conventional EVA shoe bottom foam process, jumps out conventional EVA
The exploitation of sole foaming technique, footwear material will have more extensive prospect, will have a continued development in terms of energy conservation and environmental protection and automation.
Summary of the invention
It is an object of that present invention to provide a kind of preparation methods of lightweight rubber composite elastic body, for the new process of footwear material preparation
Widening roadbed.
The technical solution that the present invention uses is:
The preparation method of lightweight rubber composite elastic body, specifically comprises the following steps:
1) water-soluble polymer solution is prepared；
2) it weighs and is slowly added into solution in step 1) under the rubber latex mechanical stirring of certain mass, mechanical stirring carries out
Mixing；
3) mixed liquor in step 2) is added in crosslinking agent or sedimentation agent, obtains gelation solid；
4) step 3) products therefrom is freeze-dried, rubber Solid content accounting 50%~90%.
Preferably, the water-soluble polymer is at least one of polyvinyl alcohol, polyacrylic acid, starch, cellulose.
Preferably, the rubber latex is nature rubber latex, SBR emulsion, acrylonitrile-butadiene rubber latex, silicon rubber cream
At least one of liquid, carboxy nitrile rubber lotion, carboxylic styrene-butadiene rubber lotion.
Preferably, the crosslinking agent is borate or MBA.
Preferably, the sedimentation agent is vitamin C.
Preferably, the concentration of the sedimentation agent is 1.0%~1.5%.
Preferably, the freeze-drying specific practice are as follows: it is public that gained gelation solid is placed in application 10 Kgfs~12
In the plastotype mold of jin power for 24 hours in -3 DEG C~-6 DEG C freezings, it is then taken out and thaws at room temperature, after thawing completely, then
For 24 hours in -3 DEG C~-6 DEG C freezings, 48h is freeze-dried in freeze drier after so recycling 2-5 times.
The present invention has the advantages that compared with prior art
1, the preparation method takes full advantage of the lotion complex method of rubber latex, and combines the gas using freeze-drying
Gel technique, the micron order for realizing aqueous high molecular and rubber is compound, and has reached the lighting of material, density down to
0.28g/cm3~0.80g/cm3, optionally can change density；
2, the thinking of this method is novel, and using water solution system, environment-friendly and green has been widened and prepared light composite material
Method.
Specific embodiment
Embodiment 1:
The present embodiment provides a kind of preparation methods of lightweight rubber composite elastic body, specifically comprise the following steps:
1) it prepares water-soluble polymer solution: weighing 100 parts of polyvinyl alcohol and be dissolved in 900 parts of water, stirring is until form
Polyvinyl alcohol water solution, concentration 10%；
2) 265 parts of nature rubber latex that rubber Solid content is 60% are weighed and is slowly added into step 1) under mechanical stirring
Middle solution, stirs while adding, and mechanical stirring is mixed；
3) continue stirring after being added after a certain period of time, be slowly added to 1% borate, the mechanical stirring when being added, until
Complete gel obtains gelation solid；
4) it takes the gel of step 3) to be added in 15cm × 15cm × 0.4cm mo(u)lding-die, after capping, applies in covering
10Kg iron block, and multiple freezing processing is carried out at -4 DEG C, every freezing is drawn off thawing at room temperature for 24 hours afterwards, wait thaw completely
It is freezed afterwards next time；After 4 freezing processings of gel, it is freeze-dried then at freeze drier, rubber solid content
Accounting 61.3%.
Embodiment 2:
The present embodiment provides a kind of preparation methods of lightweight rubber composite elastic body, specifically comprise the following steps:
1) it prepares water-soluble polymer solution: weighing 120 parts of polyvinyl alcohol and be dissolved in 880 parts of water, stirring is until form
Polyvinyl alcohol water solution, concentration 12%；
2) 280 parts of acrylonitrile-butadiene rubber latex that rubber Solid content is 50% are weighed and is slowly added into step 1) under mechanical stirring
Middle solution, stirs while adding, and mechanical stirring is mixed；
3) continue stirring after being added after a certain period of time, be slowly added to 1% borate, the mechanical stirring when being added, until
Complete gel obtains gelation solid；
4) it takes the gel of step 3) to be added in 15cm × 15cm × 0.4cm mo(u)lding-die, after capping, applies in covering
10Kg iron block, and multiple freezing processing is carried out at -4 DEG C, every freezing is drawn off thawing at room temperature for 24 hours afterwards, wait thaw completely
It is freezed afterwards next time；After 4 freezing processings of gel, it is freeze-dried then at freeze drier, rubber solid content
Accounting 53.8%.
Embodiment 3:
The present embodiment provides a kind of preparation methods of lightweight rubber composite elastic body, specifically comprise the following steps:
1) it prepares water-soluble polymer solution: weighing 100 parts of polyvinyl alcohol and be dissolved in 900 parts of water, stirring is until form
Polyvinyl alcohol water solution, concentration 10%；
2) 500 parts of carboxy nitrile rubber lotion that rubber Solid content is 50% are weighed and is slowly added into step under mechanical stirring
It is rapid 1) in solution, stir while adding, mechanical stirring is mixed；
3) continue stirring after being added after a certain period of time, be slowly added to 1% borate, the mechanical stirring when being added, until
Complete gel obtains gelation solid；
4) it takes the gel of step 3) to be added in 15cm × 15cm × 0.4cm mo(u)lding-die, after capping, applies in covering
12Kg iron block, and multiple freezing processing is carried out at -3 DEG C, every freezing is drawn off thawing at room temperature for 24 hours afterwards, wait thaw completely
It is freezed afterwards next time；After 5 freezing processings of gel, it is freeze-dried then at freeze drier, rubber solid content
Accounting 71.4%.
Embodiment 4:
The present embodiment provides a kind of preparation methods of lightweight rubber composite elastic body, specifically comprise the following steps:
1) it prepares water-soluble polymer solution: weighing 80 parts of starch dissolutions in 920 parts of water, stirring is until form transparent
Amidin, concentration 8%；
2) 580 parts of SBR emulsion that rubber Solid content is 40% are weighed and is slowly added into step 1) under mechanical stirring
Middle solution, stirs while adding, and mechanical stirring is mixed；
3) continue stirring after being added after a certain period of time, be slowly added to the vitamin C that concentration is 1.0%~1.5%, Bian Jia
Enter side mechanical stirring, until complete gel, obtains gelation solid；
4) it takes the gel of step 3) to be added in 15cm × 15cm × 0.4cm mo(u)lding-die, after capping, applies in covering
12Kg iron block, and multiple freezing processing is carried out at -5 DEG C, every freezing is drawn off thawing at room temperature for 24 hours afterwards, wait thaw completely
It is freezed afterwards next time；After 3 freezing processings of gel, it is freeze-dried then at freeze drier, rubber solid content
Accounting 74.3%.
Embodiment 5:
The present embodiment provides a kind of preparation methods of lightweight rubber composite elastic body, specifically comprise the following steps:
1) it prepares water-soluble polymer solution: weighing 100 parts of cellulose dissolutions in 900 parts of water, stirring is until form fine
Tie up plain aqueous solution, concentration 10%；
2) 375 parts of carboxylic styrene-butadiene rubber lotion that rubber Solid content is 50% are weighed and is slowly added into step under mechanical stirring
It is rapid 1) in solution, stir while adding, mechanical stirring is mixed；
3) continue stirring after being added after a certain period of time, be slowly added to the vitamin C that concentration is 1.0%~1.5%, Bian Jia
Enter side mechanical stirring, until complete gel, obtains gelation solid；
4) it takes the gel of step 3) to be added in 15cm × 15cm × 0.4cm mo(u)lding-die, after capping, applies in covering
12Kg iron block, and multiple freezing processing is carried out at -6 DEG C, every freezing is drawn off thawing at room temperature for 24 hours afterwards, wait thaw completely
It is freezed afterwards next time；After 2 freezing processings of gel, it is freeze-dried then at freeze drier, rubber solid content
Accounting 65.2%.
Embodiment 6:
The present embodiment provides a kind of preparation methods of lightweight rubber composite elastic body, specifically comprise the following steps:
1) it prepares water-soluble polymer solution: weighing 80 parts of cellulose dissolutions in 920 parts of water, stirring is until form fiber
Plain aqueous solution, concentration 8%；
2) 450 parts of carboxylic styrene-butadiene rubber lotion that rubber Solid content is 50% are weighed and is slowly added into step under mechanical stirring
It is rapid 1) in solution, stir while adding, mechanical stirring is mixed；
3) continue stirring after being added after a certain period of time, be slowly added to the vitamin C that concentration is 1.0%~1.5%, Bian Jia
Enter side mechanical stirring, until complete gel, obtains gelation solid；
4) it takes the gel of step 3) to be added in 15cm × 15cm × 0.4cm mo(u)lding-die, after capping, applies in covering
10Kg iron block, and multiple freezing processing is carried out at -4 DEG C, every freezing is drawn off thawing at room temperature for 24 hours afterwards, wait thaw completely
It is freezed afterwards next time；After 5 freezing processings of gel, it is freeze-dried then at freeze drier, rubber solid content
Accounting 73.7%.
Embodiment 7:
The present embodiment provides a kind of preparation methods of lightweight rubber composite elastic body, specifically comprise the following steps:
1) it prepares water-soluble polymer solution: weighing 120 parts of polyacrylic acid and be dissolved in 880 parts of water, stirring is until form
Polyacrylic acid aqueous solution, concentration 12%；
2) 500 parts of silicon rubber lotion that rubber Solid content is 40% are weighed to be slowly added into step 1) under mechanical stirring
Solution stirs while adding, and mechanical stirring is mixed；
3) continue stirring after being added after a certain period of time, be slowly added to MBA, the mechanical stirring when being added, until completely solidifying
Glue obtains gelation solid；
4) it takes the gel of step 3) to be added in 15cm × 15cm × 0.4cm mo(u)lding-die, after capping, applies in covering
10Kg iron block, and multiple freezing processing is carried out at -4 DEG C, every freezing is drawn off thawing at room temperature for 24 hours afterwards, wait thaw completely
It is freezed afterwards next time；After 4 freezing processings of gel, it is freeze-dried then at freeze drier, rubber solid content
Accounting 62.5%.
Embodiment 8:
The present embodiment provides a kind of preparation methods of lightweight rubber composite elastic body, specifically comprise the following steps:
1) it prepares water-soluble polymer solution: weighing 50 parts of polyacrylic acid and be dissolved in 950 parts of water, stirring is until form poly-
Acrylic acid aqueous solution, concentration 5%；
2) 650 parts of nature rubber latex that rubber Solid content is 60% are weighed and is slowly added into step 1) under mechanical stirring
Middle solution, stirs while adding, and mechanical stirring is mixed；
3) continue stirring after being added after a certain period of time, be slowly added to MBA, the mechanical stirring when being added, until completely solidifying
Glue obtains gelation solid；
4) it takes the gel of step 3) to be added in 15cm × 15cm × 0.4cm mo(u)lding-die, after capping, applies in covering
10Kg iron block, and multiple freezing processing is carried out at -4 DEG C, every freezing is drawn off thawing at room temperature for 24 hours afterwards, wait thaw completely
It is freezed afterwards next time；After 4 freezing processings of gel, it is freeze-dried then at freeze drier, rubber solid content
Accounting 88.6%.
Comparative example 1:
The comparative example provides a kind of preparation method of rubber composite material, specifically comprises the following steps:
1) it prepares water-soluble polymer solution: weighing 100 parts of polyethylene alcoholysis in 900 parts of water, stirring is until form poly-
Vinyl alcohol aqueous solution, concentration 10%；
2) 500 parts of acrylonitrile-butadiene rubber latex that rubber Solid content is 50% are weighed and is slowly added into step 1) under mechanical stirring
Middle solution, stirs while adding, and mechanical stirring is mixed；
3) continue stirring after being added after a certain period of time, be slowly added to 1% borate, the mechanical stirring when being added, until
Complete gel obtains gelation solid, then dry under conditions of 80 DEG C.
Above-described embodiment 1-8 and the rubber composite material of comparative example 1 is taken to carry out tensile strength, elongation at break, return respectively
The measurement of the physical indexs such as bullet and density.Wherein tensile strength and elongation at break are referring to GB/T528-2009, and rebound is referring to GB/
T1681-2009；Density uses volume method of estimating cost, and specific practice is as follows: taking the rectangular sample block of 3cm × 3cm, surveys four with vernier caliper
Side thickness is averaged lcm, calculates volume V=3cm × 3cm × lcm, then weigh square weight m, obtains density p=m/V, single
Position is g/cm3, the density of each embodiment is to be taken 3 pieces of square blocks to calculate density according to this method to be averaged gained.Specific inspection
Result is surveyed referring to table one.
Table one: the physical property testing result of embodiment 1-8 and comparative example 1
The basic principles and main features and advantages of the present invention of the invention have been shown and described above, the industry
For technical staff it should be appreciated that the present invention is not limited to the above embodiments, what is described in the above embodiment and the description is only say
Bright the principle of the present invention, under the premise of not departing from the inventive spirit of the present invention and range, the present invention also has various change and changes
Into these changes and improvements all fall within the protetion scope of the claimed invention, and the claimed scope of the invention is by appended right
Claim and its equivalent thereof.
Claims (7)
1. the preparation method of lightweight rubber composite elastic body, which is characterized in that specifically comprise the following steps:
1) water-soluble polymer solution is prepared；
2) it weighs and is slowly added into solution in step 1) under the rubber latex mechanical stirring of certain mass, mechanical stirring is mixed
It closes；
3) mixed liquor in step 2) is added in crosslinking agent or sedimentation agent, obtains gelation solid；
4) step 3) products therefrom is freeze-dried, rubber Solid content accounting 50%~90%.
2. the preparation method of lightweight rubber composite elastic body according to claim 1, which is characterized in that the water-soluble poly
Conjunction object is at least one of polyvinyl alcohol, polyacrylic acid, starch, cellulose.
3. the preparation method of lightweight rubber composite elastic body according to claim 1, which is characterized in that the rubber latex
For nature rubber latex, SBR emulsion, acrylonitrile-butadiene rubber latex, silicon rubber lotion, carboxy nitrile rubber lotion, Carboxy
At least one of rubber latex.
4. the preparation method of lightweight rubber composite elastic body according to claim 1, which is characterized in that the crosslinking agent is
Borate or MBA.
5. the preparation method of lightweight rubber composite elastic body according to claim 1, which is characterized in that the sedimentation agent is
Vitamin C.
6. the preparation method of lightweight rubber composite elastic body according to claim 1, which is characterized in that the sedimentation agent
Concentration is 1.0%~1.5%.
7. the preparation method of lightweight rubber composite elastic body according to claim 1, which is characterized in that the freeze-drying
Specific practice are as follows: be placed in gained gelation solid in the plastotype mold for apply 10 Kgfs~12 Kgfs in -3 DEG C~-6 DEG C
Freezing for 24 hours, is then taken out and thaws at room temperature, after thawing completely, for 24 hours then at -3 DEG C~-6 DEG C freezings, so recycles
48h is freeze-dried after 2-5 times in freeze drier.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111690189A (en) * | 2020-06-12 | 2020-09-22 | 华南理工大学 | Carboxyl nitrile rubber/carboxyl starch composite material and preparation method and application thereof |
| CN111793240A (en) * | 2020-07-20 | 2020-10-20 | 纳诺科技有限公司 | Organic aerogel material and preparation method and application thereof |
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| CN111793240A (en) * | 2020-07-20 | 2020-10-20 | 纳诺科技有限公司 | Organic aerogel material and preparation method and application thereof |
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