CN107501837A - A kind of thermoplastic elastomer foaming gasket its preparation method - Google Patents
A kind of thermoplastic elastomer foaming gasket its preparation method Download PDFInfo
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- CN107501837A CN107501837A CN201710820624.1A CN201710820624A CN107501837A CN 107501837 A CN107501837 A CN 107501837A CN 201710820624 A CN201710820624 A CN 201710820624A CN 107501837 A CN107501837 A CN 107501837A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
- C08L53/025—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes modified
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/32—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof from compositions containing microballoons, e.g. syntactic foams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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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
- C08J2353/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2353/02—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
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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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Sealing Material Composition (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The present invention discloses a kind of thermoplastic elastomer foaming gasket its preparation method, it is characterized in that thermoplastic elastomer foaming gasket its prepare material and include according to mass parts, 60 110 parts of styrenic elastomer, 10 30 parts of high density polyethylene (HDPE), 10 40 parts of polypropylene, 60 110 parts of filling oil, 30 80 parts of mineral filler, 15 parts of lubricant, 15 parts of coupling agent, 0.1 2 parts of antioxidant, 05 parts of crosslinking agent, 18 parts of foaming agent, its preparation method is, absorption first will be sufficiently mixed according to styrenic elastomer in above-mentioned mass parts material and filling oil, then other component materials are added and are well mixed, material is passed through into double screw extruder extruding pelletization after well mixed, material is sent into extrusion molding in single screw extrusion machine after granulation.The present invention produces without waste water and gas in process of production, and solvent-free discharge, without halogen, leftover pieces recoverable, product elasticity is good, intensity is high, compression and back renaturation is good, proportion is low, density is adjustable, surface is smooth, welding effect is good.
Description
Technical field
The present invention relates to thermoplastic elastomer foaming gasket its preparation method Preparation Method field, a kind of thermoplastic is particularly belonged to
The elastomer foamed gasket its preparation method Preparation Method of property.
Background technology
Household electric refrigerator its gasket on domestic market is mostly made using Corvic.However,
The refrigerator doors gasket one side lower temperature resistance and resistance to ag(e)ing made using polyvinyl chloride is poor, and feel is poor under low temperature；It is another
Aspect is compensatory bad, easily produces cold draining phenomenon using the refrigerator of this kind of gasket, energy-saving effect is poor.And polyvinyl chloride makes
Seal strip for refrigerator door be to reach the soft effect of gasket matter, can substantial amounts of plasticizer is added during manufacturing, these increasing
Modeling agent easily produces migration corrosion inner container of icebox along with carcinogenic risk, and this kind of door seal rod density is higher, environmental-protecting performance is poor,
Transport, in-convenience in use.
In the market had engendered thermoplastic elastomer (TPE) seal strip for refrigerator door, thermoplastic elastomer (TPE) in recent years
(Thermoplastic Elastomer, abbreviation TPE) refers to the high resiliency at normal temperatures with crosslinking rubber, high intensity and height and returned
Elasticity, the high polymer material of plasticizing forming can be carried out as thermoplastic resin again at high temperature.Thermoplastic elastomer (TPE) refrigerator
Door seal solves most of problem existing for polyvinyl chloride refrigerator door seal, but it is larger proportion to be also present, and surface deformation recovers slow,
Cost is higher, and traffic condition requires the problems such as high, and this causes greatly to restrict to its further genralrlization application.For this, the present invention carries
For a kind of thermoplastic elastomer foaming gasket its preparation method Preparation Method
The content of the invention
The present invention provides a kind of thermoplastic elastomer foaming gasket its preparation method Preparation Method, sends out thermoplastic elastomer (TPE)
Steep in door seal production process and produced without waste water and gas, solvent-free discharge, without halogen, leftover pieces recoverable, and produced
Thermoplastic elastomer foaming door seal elasticity it is good, intensity is high, compression and back renaturation is good, proportion is low, density is adjustable, surface is smooth, weldering
It is good to connect effect.
The technical solution adopted by the present invention is as follows to achieve the above object：
A kind of thermoplastic elastomer foaming gasket its preparation method, it is characterised in that thermoplastic elastomer foaming gasket
It prepares material includes according to mass parts, styrenic elastomer 60-110 parts, high density polyethylene (HDPE) 10-30 parts, polypropylene
10-40 parts, fill oily 60-110 parts, mineral filler 30-80 parts, lubricant 1-5 parts, coupling agent 1-5 parts, antioxidant 0.1-2
Part, crosslinking agent 0-5 parts, foaming agent 1-8 parts, its preparation method is, first will be according to phenylethylene elasticity in above-mentioned mass parts material
Body is sufficiently mixed absorption with filling oil, then adds other component materials and is well mixed, and passes through material after well mixed double
Screw extruder extruding pelletization, material is sent into extrusion molding in single screw extrusion machine, the styrenic elastomer choosing after granulation
It is 0.89-0.91g/cm from proportion3, structure is that line style or star-like SEBS one or more mix, the high density polyethylene (HDPE)
Highly crystalline rate material is selected with polypropylene, and polypropylene material has mobility, material is sent into single screw rod and squeezed after the granulation
Go out and carry out strict temperature control in machine during extrusion molding to single screw extrusion machine Zhong Wuge areas and head, one in single screw extrusion machine
Area's temperature is 140 °~160 °, and to being 150 °~170 DEG C without temperature is gone, head temperature is 150 °~170 ° in 2nd area.
Preferably, the filling oil is one or both of naphthenic oil, white oil, paraffin oil.
Preferably, the mineral filler is the one or more in calcium carbonate more than 2000 mesh, talcum powder, barium sulfate.
Preferably, the lubricant is one or both of Tissuemat E, oleamide.
Preferably, the coupling agent is SEBS-MAH or PP-MAH.
Preferably, the antioxidant is the one or more in aromatic amine, phenols, organosulfur compound, phosphite ester.
Preferably, the crosslinking agent is the one or more of peroxide crosslinking agent.
Preferably, the foaming agent is the combination of physical blowing agent and CBA, and the physical blowing agent is mainly
Microballoon foaming agent, the CBA be azodicarbonamide, 4,4 '-OBSH, unifor, azo
Bis-isobutyronitrile, sodium acid carbonate, the one or more of ammonium hydrogencarbonate.
Compared with the prior art, beneficial effects of the present invention are as follows：
The present invention proposes a kind of thermoplastic elastomer foaming gasket its preparation method Preparation Method, has abandoned in the market and has commonly used
The seal strip for refrigerator door material system with polyvinyl chloride, dynamic perduren etc. for base material, use using styrenic elastomer as
Base material is formulated, is aided with processing oil, plastics, mineral filler, lubricant, coupling agent, antioxidant, foaming agent etc. to carry out foamed refrigerator
The manufacture of door seal strip material, the material novelty is high, light, proportion is low, excellent performance, has good cold resistance and heat-resisting old
The property changed, elasticity are good, deformation restoring force is strong, significant sealing affection, and manufacturing procedure is simple, asepsis environment-protecting, recoverable, reduces into
This 10% or so, Article Stiffness Determination scope is wide, light, dry and comfortable, comfortable feel, without peculiar smell.In addition, in the research of the present invention,
The microballoon foaming agent of addition, product proportion can be not only reduced, it is cost-effective, and the intensity and bullet of extrusion gasket can be lifted
Property.The present invention produces without waste water and gas in process of production, solvent-free discharge, without halogen, leftover pieces recoverable, product
Elasticity is good, intensity is high, compression and back renaturation is good, proportion is low, density is adjustable, surface is smooth, welding effect is good.
Brief description of the drawings
Fig. 1 is formula and the seal strip for refrigerator door quantitative measurement figure obtained by technique in embodiment one；
Fig. 2 is formula and the seal strip for refrigerator door quantitative measurement figure obtained by technique in embodiment two；
Fig. 3 is formula and the seal strip for refrigerator door quantitative measurement figure obtained by technique in embodiment three.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below by specific embodiment to this
Invention is described further, but embodiment is only limitted to explain the present invention, is not intended to limit the present invention.
Embodiment one, the door seal strip material of reference picture 1 are weighed by following material number：110 parts of styrenic elastomer is high
30 parts of density polyethylene, 40 parts of polypropylene, fill 90 parts of oily (selecting naphthenic oil), 80 parts of mineral filler (selecting calcium carbonate), profit
50 parts of lubrication prescription, 3 parts of coupling agent, 0.4 part of antioxidant, 0.8 part of crosslinking agent, foaming agent (select microballoon in physical blowing agent to foam
Agent) 2.5 parts.
Styrenic elastomer is mixed in high-speed mixer with naphthenic oil it is oil-filled, then by remaining material according to group
Part substep is added, and powder is obtained after well mixed.Above-mentioned mixed powder is squeezed through double screw extruder extruding pelletization, twin-screw
Vacuum port and steam vent ensure to close when going out machine extruding pelletization, close Melt Pump, reduce material as far as possible and stop in screw rod
Time, engine speed 35Hz or so are stayed, it is strict to control each area of double screw extruder that foamed thermoplastic elastomeric is made with head temperature
Body particle.The foamed thermoplastic elastomers particle that above-mentioned extruder is extruded squeezes through single screw extrusion machine extrusion molding, single screw rod
Chu Jizhongge areas temperature：One 160 DEG C of area, 165 DEG C of 2nd area, 170 DEG C of 3rd area, 170 DEG C of 4th area, 170 DEG C of 5th area, 170 DEG C of die head；Go out
Quickly cooled down after mould, suppress demi-inflation, section bar is formed smoother surface.Cut, thermal weld obtains one completely
Seal strip for refrigerator door.
Seal strip for refrigerator door obtained by above-mentioned formula, technique, because of the microballoon foaming agent used, spheroid expansion, is deposited after being heated
In matrix, do not having leachy presence, and spheroid spheroid is uniform, therefore the surfacing of gasket, smooth, soft handle.Its thing
Manage the performance test results such as Fig. 1.
Embodiment two, the door seal strip material of reference picture 2 are weighed by following material number：110 parts of styrenic elastomer is high
30 parts of density polyethylene, 40 parts of polypropylene, fill 90 parts of oily (selecting naphthenic oil), 80 parts of mineral filler (selecting calcium carbonate), profit
5 parts of lubrication prescription, 3 parts of coupling agent, 0.3 part of antioxidant, 0.5 part of crosslinking agent, 1.2 parts of foaming agent (selecting CBA).
Styrenic elastomer is mixed in high-speed mixer with naphthenic oil it is oil-filled, then by remaining material according to group
Part substep is added, and powder is obtained after well mixed.Above-mentioned mixed powder is squeezed through double screw extruder extruding pelletization, twin-screw
Vacuum port and steam vent ensure to close when going out machine extruding pelletization, close Melt Pump, reduce material as far as possible and stop in screw rod
Time, engine speed 35Hz or so are stayed, it is strict to control each area of double screw extruder that foamed thermoplastic elastomeric is made with head temperature
Body particle.The foamed thermoplastic elastomers particle that above-mentioned extruder is extruded squeezes through single screw extrusion machine extrusion molding, single screw rod
Chu Jizhongge areas temperature：One 160 DEG C of area, 165 DEG C of 2nd area, 170 DEG C of 3rd area, 170 DEG C of 4th area, 170 DEG C of 5th area, 170 DEG C of die head；Go out
Quickly cooled down after mould, suppress demi-inflation, section bar is formed smoother surface.Cut, thermal weld obtains one completely
Seal strip for refrigerator door.
Seal strip for refrigerator door obtained by above-mentioned formula, technique, because using CBA, producing stomata after heated and being present in
In matrix, gasket surface may because of the rupture of stomata and caused by smooth, smoothness decline.Its quantitative measurement result is such as
Fig. 2.
Embodiment three, the door seal strip material of reference picture 3 are weighed by following material number：110 parts of styrenic elastomer is high
30 parts of density polyethylene, 40 parts of polypropylene, fill 90 parts of oily (selecting naphthenic oil), 80 parts of mineral filler (selecting calcium carbonate), profit
5 parts of lubrication prescription, 3 parts of coupling agent, 0.6 part of antioxidant, 0.5 part of crosslinking agent, foaming agent (select microballoon foaming agent in physical blowing agent
0.6 part, from 0.4 part of CBA) 1 part.
Styrenic elastomer is mixed in high-speed mixer with naphthenic oil it is oil-filled, then by remaining material according to group
Part substep is added, and powder is obtained after well mixed.Above-mentioned mixed powder is squeezed through double screw extruder extruding pelletization, twin-screw
Vacuum port and steam vent ensure to close when going out machine extruding pelletization, close Melt Pump, reduce material as far as possible and stop in screw rod
Time, engine speed 35Hz or so are stayed, it is strict to control each area of double screw extruder that foamed thermoplastic elastomeric is made with head temperature
Body particle.The foamed thermoplastic elastomers particle that above-mentioned extruder is extruded squeezes through single screw extrusion machine extrusion molding, single screw rod
Chu Jizhongge areas temperature：One 160 DEG C of area, 165 DEG C of 2nd area, 170 DEG C of 3rd area, 170 DEG C of 4th area, 170 DEG C of 5th area, 170 DEG C of die head；Go out
Quickly cooled down after mould, suppress demi-inflation, section bar is formed smoother surface.Cut, thermal weld obtains one completely
Seal strip for refrigerator door [0059] SEBS is mixed in high-speed mixer with naphthenic oil it is oil-filled, then by remaining component substep plus
Enter, powder is obtained after well mixed.
Seal strip for refrigerator door obtained by above-mentioned formula, technique, because the foaming agent used is physical blowing agent and chemical blowing
The compounding of agent, the microballoon of expanded by heating in matrix be present, also there is a stomata formed after chemical reaction, gasket surfacing,
Smoothness is good compared with embodiment two.Its quantitative measurement result such as Fig. 3.
Claims (8)
- A kind of 1. thermoplastic elastomer foaming gasket its preparation method, it is characterised in that thermoplastic elastomer foaming gasket its Prepare material includes according to mass parts, styrenic elastomer 60-110 parts, high density polyethylene (HDPE) 10-30 parts, polypropylene 10-40 Part, fill oily 60-110 parts, mineral filler 30-80 parts, lubricant 1-5 parts, coupling agent 1-5 parts, antioxidant 0.1-2 parts, crosslinking Agent 0-5 parts, foaming agent 1-8 parts, its preparation method are that according to styrenic elastomer in above-mentioned mass parts material and will first fill Oil is sufficiently mixed absorption, then adds other component materials and is well mixed, and material is passed through into twin-screw extrusion after being well mixed Machine extruding pelletization, material is sent into extrusion molding in single screw extrusion machine after granulation, and the styrenic elastomer is selected from proportion 0.89-0.91g/cm3, structure is that line style or star-like SEBS one or more mix, the high density polyethylene (HDPE) and polypropylene From highly crystalline rate material, and polypropylene material has mobility, and material is sent into single screw extrusion machine and squeezed after the granulation Go out in forming process and strict temperature control is carried out to single screw extrusion machine Zhong Wuge areas and head, single screw extrusion machine Zhong-1 block temperature is 140 °~160 °, to being 150 °~170 DEG C without temperature is gone, head temperature is 150 °~170 ° in 2nd area.
- 2. a kind of thermoplastic elastomer foaming gasket its preparation method Preparation Method according to claim 1, its feature exist It is oily for one or both of naphthenic oil, white oil, paraffin oil in the filling.
- 3. a kind of thermoplastic elastomer foaming gasket its preparation method Preparation Method according to claim 1, its feature exist In the mineral filler be more than 2000 mesh calcium carbonate, talcum powder, the one or more in barium sulfate.
- 4. a kind of thermoplastic elastomer foaming gasket its preparation method Preparation Method according to claim 1, its feature exist In the lubricant be Tissuemat E, one or both of oleamide.
- 5. a kind of thermoplastic elastomer foaming gasket its preparation method Preparation Method according to claim 1, its feature exist In the coupling agent be SEBS-MAH or PP-MAH.
- 6. a kind of thermoplastic elastomer foaming gasket its preparation method Preparation Method according to claim 1, its feature exist In the antioxidant be aromatic amine, phenols, organosulfur compound, the one or more in phosphite ester.
- 7. a kind of thermoplastic elastomer foaming gasket its preparation method Preparation Method according to claim 1, its feature exist In the one or more that the crosslinking agent is peroxide crosslinking agent.
- 8. a kind of thermoplastic elastomer foaming gasket its preparation method Preparation Method according to claim 1, its feature exist In the combination that the foaming agent is physical blowing agent and CBA, the physical blowing agent is mainly microballoon foaming agent, institute CBA is stated as azodicarbonamide, 4,4 '-OBSH, unifor, azodiisobutyronitrile, carbonic acid Hydrogen sodium, the one or more of ammonium hydrogencarbonate.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109535745A (en) * | 2018-11-22 | 2019-03-29 | 袁进 | A kind of refrigerator sealing strip thermoplastic elastic material and preparation method thereof |
| CN109942975A (en) * | 2019-03-04 | 2019-06-28 | 合肥华凌股份有限公司 | Gasket and its feedstock composition, production method |
| CN110003644A (en) * | 2019-03-18 | 2019-07-12 | 军事科学院***工程研究院军需工程技术研究所 | A kind of thermoplastic polyamide elastomer's physical chemistry joint foamed material and preparation method thereof |
| CN111171501A (en) * | 2020-01-19 | 2020-05-19 | 深圳市炫丽塑胶科技有限公司 | TPE material for foaming toy and preparation method thereof |
| CN111875918A (en) * | 2020-08-04 | 2020-11-03 | 安徽万朗磁塑股份有限公司 | Metallic TPE refrigerator door seal rubber sleeve composite material and preparation method thereof |
| CN112679839A (en) * | 2020-12-24 | 2021-04-20 | 快思瑞科技(上海)有限公司 | Composite foaming functional master batch and preparation method and application thereof |
| CN114044993A (en) * | 2021-12-10 | 2022-02-15 | 东莞欧德雅装饰材料有限公司 | Light PVC edge banding and preparation method thereof |
| CN116144135A (en) * | 2022-12-28 | 2023-05-23 | 佩尔哲汽车内饰***(太仓)有限公司 | Thermoplastic elastomer material and preparation method thereof |
| EP4324872A1 (en) | 2022-08-04 | 2024-02-21 | Conta Elastik Urunler Sanayi Ve Ticaret Anonim Sirketi | Production method of a sealing product with low density and thermal conductivity |
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