CN103724820A - Automobile trunk sealing strip based on ethylene-propylene-diene rubber - Google Patents
Automobile trunk sealing strip based on ethylene-propylene-diene rubber Download PDFInfo
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- CN103724820A CN103724820A CN201310649511.1A CN201310649511A CN103724820A CN 103724820 A CN103724820 A CN 103724820A CN 201310649511 A CN201310649511 A CN 201310649511A CN 103724820 A CN103724820 A CN 103724820A
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- terpolymer
- automobile trunk
- rubber
- sealed strip
- strip based
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Classifications
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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
- 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
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- 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
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- 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
Abstract
The invention discloses an automobile trunk sealing strip based on ethylene-propylene-diene rubber. The automobile trunk sealing strip comprises ethylene-propylene-diene rubber, polypropylene, paraffin oil, linear phenolic resin, hexamethylenetetramine, silicon dioxide, an antioxygen, a vulcanizing agent, an auxiliary vulcanizing agent, talcum powder, zinc borate, calcium stearate, phosphoric acid ester and carbon black. The automobile trunk sealing strip is high in wearing resistance and elasticity and relatively low in friction coefficient whether at a room temperature, a low temperature or a high temperature, and has a certain flame retarding property and recoverability.
Description
Technical field
The invention belongs to automotive field, be specifically related to a kind of automobile door and window sealing strip based on terpolymer EP rubber.
Background technology
The sealed strip material that existing automobile adopts is mainly polyvinyl chloride, thermoset terpolymer EP rubber, silicon rubber and thermoplastic elastomer etc., and what wherein account for large absolutely number is polyvinyl chloride and thermoset terpolymer EP rubber material.There is the defects such as aging resistance is poor, thermo-labile, not environmental protection in PVC sealing strip, is assembled on automobile door and window and uses after certain time limit, will be aging under solar radiation, be full of cracks, do not have good sealing function.Thermoset EPT rubber packing bar is in preparation process, need to be through Banbury mixer banburying and very long baking oven sulfuration, gap produces, complex process, production process is long, consume energy high, facility investment is large, and environment is had to certain pollution, scrap rubber bar or the adhesive tape changing can not reclaim direct recycling, the same with damaged tire go out of use be deposited in outside, form " black pollution ", the material of this product does not have the plastic processing characteristics of heat of thermoplastic resin and can not make colored article etc. simultaneously.In addition, take the sealed strip normal temperature good springiness of the thermoplastic elastomer material that SBS, SEBS be base material, but during high temperature, heat-resisting and weathering resistance is slightly poor,, there is easily aging problem in also deviation of elasticity simultaneously, and should not be for the sealing of automobile trunk.And for automobile trunk sealed strip, when room temperature, low temperature (winter or cold district) and high temperature (summer or hot area), all should there is good wear resistance, elasticity and less frictional coefficient.
Therefore, how to develop and a kind ofly can meet the requirement of automobile trunk sealed strip, the novel material again with environmental protection and recoverable is the problem that needs solve, to meet the sealed strip requirement of automobile trunk.
Summary of the invention
The object of the invention is to provide a kind of automobile trunk sealed strip based on terpolymer EP rubber, when room temperature, low temperature and high temperature, all there is good wear resistance, elasticity and less frictional coefficient, there is again certain resistance to flame, the feature of recoverable simultaneously.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
An automobile trunk sealed strip based on terpolymer EP rubber, is characterized in that, this automobile trunk sealed strip is comprised of the component of following weight part:
Terpolymer EP rubber 40-50
Polipropene 25-40
Paraffin oil 16-22
Linear phenolic resin 0.5-0.8
Hexamethylenetetramine 1-1.2
Silica 1 0-15
Oxidation inhibitor 0.35-0.8
Vulcanizing agent 0.5-2
Cocuring agent 2-4
Talcum powder 17-22.5
Zinc borate 10-15
Calcium stearate 0.6-1
Phosphoric acid ester 5-10
Carbon black 25-30
Further, described terpolymer EP rubber is Mooney viscosity at 60-70 rubber grain, and described polypropylene is that melting index is the copolymerized type propene polymer of 5.5-7 g/10min.
Further, described oxidation inhibitor is antioxidant 1010, irgasfos 168 and antioxidant 1076 according to mass ratio 1: 1.5:1.08 is mixed.
Further, described phosphoric acid ester is the combination of a kind of in tricresyl phosphate (fourth oxygen ethyl) ester, triethyl phosphate or two kinds.
Further, described vulcanizing agent is dicumyl peroxide.
Further, described cocuring agent is one or more combination in two furfural acetones, triallyl isocyanuric acid fat, trimethylolpropane trimethacrylate and bismaleimides.
Further, described carbon black is that carbon black N220 and carbon black N550 are according to 1: 1.27 mixed preparing of mass ratio.
The preparation method of the automobile door and window sealing strip based on terpolymer EP rubber, preparation process is as follows:
1) take raw material: according to following weight part, take raw material, 40-50 parts of terpolymer EP rubbers, polipropene 25-40 part, 16-22 parts of paraffin oils, 0.5-0.8 part of linear phenolic resin, 1-1.2 parts of hexamethylenetetramines, 0-15 parts of silica 1s, 0.35-0.8 part, oxidation inhibitor, 0.5-2 parts of vulcanizing agents, 2-4 parts of cocuring agents, 17-22.5 parts of talcum powder, 10-15 parts of zinc borates, 0.6-1 part of calcium stearate, 5-10 parts of phosphoric acid ester, 25-30 parts of carbon blacks;
2) be mixed: by terpolymer EP rubber, polypropylene, linear phenolic resin, hexamethylenetetramine, silicon-dioxide, oxidation inhibitor, talcum powder, zinc borate, calcium stearate, carbon black at room temperature, in agitator kettle, be mixed and mediate evenly, then paraffin oil and phosphoric acid ester are added in agitator kettle and stir and obtain composite elasticizer;
3) by step 2) in compound add the hopper of twin screw extruder, main frame heating, main frame heating zone is 11 sections, each zone temperatures is set as 210～220 ℃, head temperature is set as 200～210 ℃, at the 4th section, add vulcanizing agent and cocuring agent, in Section Eight section, add step 2) composite elasticizer, make that compound fully melts, dispersion, sulfuration, plasticising, mixing, disperse, extrude, granulation, cooling, dewater, sieve and to obtain thermoplasticity terpolymer EP rubber particle, the time is 15-20 minutes;
4) single screw extrusion machine plasticizing is extruded:
A, the compound of step 3) is added in single screw extrusion machine hopper, main frame heating, main frame heated zones is 5 sections, and each zone temperatures is set as 180 ℃, and head temperature is set as 180-200 ℃;
B, assemble head sealed strip mouth mould to be extruded, heating, Temperature Setting is 170～175 ℃;
C, startup engine speed, first reinforced at a slow speed, after mouthful mould discharging, slowly gradually speed is brought up to 50～60rpm again.
D, sizing, cooling, severing, check, packing: the sealed strip of die extrusion, through tank sizing, cooling, draws by caterpillar tractor, and last length is according to the rules carried out severing, check and packing.
Compared with prior art, automobile trunk sealed strip based on terpolymer EP rubber of the present invention, in the preparation of conventional dynamic vulcanization EPT rubber/thermoplastic elastomer, introduce by paraffin oil, linear phenolic resin, hexamethylenetetramine, silicon-dioxide, oxidation inhibitor, vulcanizing agent, cocuring agent, talcum powder, zinc borate, calcium stearate, phosphoric acid ester, the filling modifying agent that carbon black forms is prepared at low temperature, under the environment of room temperature and high temperature, all there is good wear resistance, elasticity and less frictional coefficient, meet the requirement of automobile trunk, can under various envrionment temperatures, normally use.
Being used in conjunction with of paraffin oil of the present invention, linear phenolic resin, hexamethylenetetramine and silicon-dioxide, makes the extruding of consistency, product of component between processibility and flame retardant resistance three, reach an optimum balance; Zinc borate and calcium stearate have extremely strong synergy, and both are used in conjunction with and can bring into play fire-retardant synergistic effect and press down hood, and talcum powder has the product of being beneficial to extrusioning shaping and dimensional stability, has the anti-drippage of burning simultaneously.The present invention has good wear resistance, elasticity and less frictional coefficient when room temperature, low temperature and high temperature, has again certain resistance to flame, the feature of recoverable simultaneously.
Embodiment
Below in conjunction with embodiment, the invention will be further described, and described embodiment is only the present invention's part embodiment, is not whole embodiment.Embodiment based in the present invention, those of ordinary skill in the art, not making other embodiment used that obtain under creative work prerequisite, belongs to protection scope of the present invention.
Automobile trunk sealed strip based on terpolymer EP rubber of the present invention, is comprised of the component of following weight part:
Terpolymer EP rubber 40-50
Polipropene 25-40
Paraffin oil 16-22
Linear phenolic resin 0.5-0.8
Hexamethylenetetramine 1-1.2
Silica 1 0-15
Oxidation inhibitor 0.35-0.8
Vulcanizing agent 0.5-2
Cocuring agent 2-4
Talcum powder 17-22.5
Zinc borate 10-15
Calcium stearate 0.6-1
Phosphoric acid ester 5-10
Carbon black 25-30
Further, terpolymer EP rubber is Mooney viscosity at 60-70 rubber grain, and described polypropylene is that melting index is the copolymerized type propene polymer of 5.5-7 g/10min.
Further, oxidation inhibitor is antioxidant 1010, irgasfos 168 and antioxidant 1076 according to mass ratio 1: 1.5:1.08 is mixed.
Further, phosphoric acid ester is the combination of a kind of in tricresyl phosphate (fourth oxygen ethyl) ester, triethyl phosphate or two kinds.
Further, vulcanizing agent is dicumyl peroxide.
Further, cocuring agent is one or more combination in two furfural acetones, triallyl isocyanuric acid fat, trimethylolpropane trimethacrylate and bismaleimides.
Further, carbon black is that carbon black N220 and carbon black N550 are according to 1: 1.27 mixed preparing of mass ratio.
Automobile trunk sealed strip based on terpolymer EP rubber of the present invention can be prepared in accordance with the following steps:
1) take raw material: according to following weight part, take raw material, 40-50 parts of terpolymer EP rubbers, polipropene 25-40 part, 16-22 parts of paraffin oils, 0.5-0.8 part of linear phenolic resin, 1-1.2 parts of hexamethylenetetramines, 0-15 parts of silica 1s, 0.35-0.8 part, oxidation inhibitor, 0.5-2 parts of vulcanizing agents, 2-4 parts of cocuring agents, 17-22.5 parts of talcum powder, 10-15 parts of zinc borates, 0.6-1 part of calcium stearate, 5-10 parts of phosphoric acid ester, 25-30 parts of carbon blacks;
2) be mixed: by terpolymer EP rubber, polypropylene, linear phenolic resin, hexamethylenetetramine, silicon-dioxide, oxidation inhibitor, talcum powder, zinc borate, calcium stearate, carbon black at room temperature, in agitator kettle, be mixed and mediate evenly, then paraffin oil and phosphoric acid ester are added in agitator kettle and stir and obtain composite elasticizer;
3) by step 2) in compound add the hopper of twin screw extruder, main frame heating, main frame heating zone is 11 sections, each zone temperatures is set as 210～220 ℃, head temperature is set as 200～210 ℃, at the 4th section, add vulcanizing agent and cocuring agent, in Section Eight section, add step 2) composite elasticizer, make that compound fully melts, dispersion, sulfuration, plasticising, mixing, disperse, extrude, granulation, cooling, dewater, sieve and to obtain thermoplasticity terpolymer EP rubber particle, the time is 15-20 minutes;
4) single screw extrusion machine plasticizing is extruded:
A, the compound of step 3) is added in single screw extrusion machine hopper, main frame heating, main frame heated zones is 5 sections, and each zone temperatures is set as 180 ℃, and head temperature is set as 180-200 ℃;
B, assemble head sealed strip mouth mould to be extruded, heating, Temperature Setting is 170～175 ℃;
C, startup engine speed, first reinforced at a slow speed, after mouthful mould discharging, slowly gradually speed is brought up to 50～60rpm again.
D, sizing, cooling, severing, check, packing: the sealed strip of die extrusion, through tank sizing, cooling, draws by caterpillar tractor, and last length is according to the rules carried out severing, check and packing.
Compared with prior art, automobile trunk sealed strip based on terpolymer EP rubber of the present invention, in the preparation of conventional dynamic vulcanization EPT rubber/thermoplastic elastomer, introduce by paraffin oil, linear phenolic resin, hexamethylenetetramine, silicon-dioxide, oxidation inhibitor, vulcanizing agent, cocuring agent, talcum powder, zinc borate, calcium stearate, phosphoric acid ester, the filling modifying agent that carbon black forms is prepared at low temperature, under the environment of room temperature and high temperature, all there is good wear resistance, elasticity and less frictional coefficient, meet the requirement of automobile trunk, can under various envrionment temperatures, normally use.
Being used in conjunction with of paraffin oil of the present invention, linear phenolic resin, hexamethylenetetramine and silicon-dioxide, makes the extruding of consistency, product of component between processibility and flame retardant resistance three, reach an optimum balance; Zinc borate and calcium stearate have extremely strong synergy, and both are used in conjunction with and can bring into play fire-retardant synergistic effect and press down hood, and talcum powder has the product of being beneficial to extrusioning shaping and dimensional stability, has the anti-drippage of burning simultaneously.The present invention has good wear resistance, elasticity and less frictional coefficient when room temperature, low temperature and high temperature, has again certain resistance to flame, the feature of recoverable simultaneously.
Embodiment mono-
40 parts of terpolymer EP rubbers, polipropene 25 part, 16 parts of paraffin oils, 0.5 part of linear phenolic resin, 1 part of hexamethylenetetramine, 0 part of silica 1,0.35 part, oxidation inhibitor, 0.5 part of vulcanizing agent, 2 parts of cocuring agents, 17 parts of talcum powder, 10 parts of zinc borates, 0.6 part of calcium stearate, 5 parts of phosphoric acid ester, 25 parts of carbon blacks.
Embodiment bis-
50 parts of terpolymer EP rubbers, 40 parts of polypropylene, 22 parts of paraffin oils, 0.8 part of linear phenolic resin, 1.2 parts of hexamethylenetetramines, 5 parts of silica 1s, 0.8 part, oxidation inhibitor, 2 parts of vulcanizing agents, 4 parts of cocuring agents, 22.5 parts of talcum powder, 15 parts of zinc borates, 1 part of calcium stearate, 10 parts of phosphoric acid ester, 30 parts of carbon blacks.
Embodiment tri-
15 parts of terpolymer EP rubbers, 30 parts of polypropylene, 20 parts of paraffin oils, 0.65 part of linear phenolic resin, 1.05 parts of hexamethylenetetramines, 2 parts of silica 1s, 0.6 part, oxidation inhibitor, 1.2 parts of vulcanizing agents, 3 parts of cocuring agents, 21 parts of talcum powder, 14 parts of zinc borates, 0.8 part of calcium stearate, 9 parts of phosphoric acid ester, 28 parts of carbon blacks.
Claims (7)
1. the automobile trunk sealed strip based on terpolymer EP rubber, is characterized in that, this automobile trunk sealed strip is comprised of the component of following weight part:
Terpolymer EP rubber 40-50
Polipropene 25-40
Paraffin oil 16-22
Linear phenolic resin 0.5-0.8
Hexamethylenetetramine 1-1.2
Silica 1 0-15
Oxidation inhibitor 0.35-0.8
Vulcanizing agent 0.5-2
Cocuring agent 2-4
Talcum powder 17-22.5
Zinc borate 10-15
Calcium stearate 0.6-1
Phosphoric acid ester 5-10
Carbon black 25-30.
2. the automobile trunk sealed strip based on terpolymer EP rubber according to claim 1, it is characterized in that, described terpolymer EP rubber is Mooney viscosity at 60-70 rubber grain, and described polypropylene is that melting index is the copolymerized type propene polymer of 5.5-7 g/10min.
3. the automobile trunk sealed strip based on terpolymer EP rubber according to claim 2, is characterized in that, described oxidation inhibitor is antioxidant 1010, irgasfos 168 and antioxidant 1076 according to mass ratio 1: 1.5:1.08 is mixed.
4. the automobile trunk sealed strip based on terpolymer EP rubber according to claim 3, is characterized in that, described phosphoric acid ester is the combination of a kind of in tricresyl phosphate (fourth oxygen ethyl) ester, triethyl phosphate or two kinds.
5. the automobile trunk sealed strip based on terpolymer EP rubber according to claim 4, is characterized in that, described vulcanizing agent is dicumyl peroxide.
6. the automobile trunk sealed strip based on terpolymer EP rubber according to claim 5, it is characterized in that, described cocuring agent is one or more combination in two furfural acetones, triallyl isocyanuric acid fat, trimethylolpropane trimethacrylate and bismaleimides.
7. according to the arbitrary described automobile trunk sealed strip based on terpolymer EP rubber of claim 1-6, it is characterized in that, described carbon black is that carbon black N220 and carbon black N550 are according to 1: 1.23 mixed preparing of mass ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310649511.1A CN103724820A (en) | 2013-12-06 | 2013-12-06 | Automobile trunk sealing strip based on ethylene-propylene-diene rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310649511.1A CN103724820A (en) | 2013-12-06 | 2013-12-06 | Automobile trunk sealing strip based on ethylene-propylene-diene rubber |
Publications (1)
| Publication Number | Publication Date |
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| CN103724820A true CN103724820A (en) | 2014-04-16 |
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| CN201310649511.1A Pending CN103724820A (en) | 2013-12-06 | 2013-12-06 | Automobile trunk sealing strip based on ethylene-propylene-diene rubber |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106147043A (en) * | 2016-08-29 | 2016-11-23 | 安徽美祥实业有限公司 | A kind of Rubber Seal Strip for Automobile and preparation method thereof |
| CN106543568A (en) * | 2016-11-01 | 2017-03-29 | 长沙科成高分子材料有限公司 | EPDM flame retardant rubber and its production method |
| CN108587522A (en) * | 2018-04-28 | 2018-09-28 | 安徽富煌门窗幕墙有限公司 | A kind of EPT rubber packing item and preparation method thereof |
| CN109438848A (en) * | 2018-11-12 | 2019-03-08 | 王诚 | A kind of environment-friendly type plastic sealing strip |
| CN110128755A (en) * | 2019-05-24 | 2019-08-16 | 烟台鑫汇包装有限公司 | A kind of aerosol valves door system EPT rubber packing gasket |
| CN110373036A (en) * | 2019-07-03 | 2019-10-25 | 河南工业职业技术学院 | A kind of seal rubber frame and preparation method and the quickly dismantled power distribution cabinet with it |
| CN110577706A (en) * | 2019-09-27 | 2019-12-17 | 江苏冠联新材料科技股份有限公司 | Halogen-free flame-retardant ethylene propylene diene monomer rubber for sealing strip and preparation method thereof |
| CN110878160A (en) * | 2018-09-05 | 2020-03-13 | 宁波庸禾新材料科技有限公司 | Environment-friendly weather-resistant thermoplastic elastomer material for new energy automobile |
| CN111635592A (en) * | 2020-05-08 | 2020-09-08 | 安徽建筑大学 | Cable composite material for engineering equipment and preparation method and application thereof |
| CN112204098A (en) * | 2018-04-27 | 2021-01-08 | 陶氏环球技术有限责任公司 | Phosphate enhanced heat resistant ethylene/alpha-olefin interpolymer compositions |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106147043A (en) * | 2016-08-29 | 2016-11-23 | 安徽美祥实业有限公司 | A kind of Rubber Seal Strip for Automobile and preparation method thereof |
| CN106543568A (en) * | 2016-11-01 | 2017-03-29 | 长沙科成高分子材料有限公司 | EPDM flame retardant rubber and its production method |
| CN112204098A (en) * | 2018-04-27 | 2021-01-08 | 陶氏环球技术有限责任公司 | Phosphate enhanced heat resistant ethylene/alpha-olefin interpolymer compositions |
| CN112204098B (en) * | 2018-04-27 | 2023-11-14 | 陶氏环球技术有限责任公司 | Phosphate enhanced heat resistant ethylene/alpha-olefin interpolymer compositions |
| JP7227275B2 (en) | 2018-04-27 | 2023-02-21 | ダウ グローバル テクノロジーズ エルエルシー | Phosphate Reinforced Heat Resistant Ethylene/Alpha-Olefin Interpolymer Compositions |
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| JP2021528508A (en) * | 2018-04-27 | 2021-10-21 | ダウ グローバル テクノロジーズ エルエルシー | Phosphoric acid fortified heat resistant ethylene / alpha-olefin interpolymer composition |
| US20210246291A1 (en) * | 2018-04-27 | 2021-08-12 | Dow Global Technologies Llc | Phosphate enhanced, heat resistant ethylene/alpha-olefininterpolymer compositions |
| CN108587522A (en) * | 2018-04-28 | 2018-09-28 | 安徽富煌门窗幕墙有限公司 | A kind of EPT rubber packing item and preparation method thereof |
| CN108587522B (en) * | 2018-04-28 | 2020-02-11 | 安徽富煌门窗幕墙有限公司 | Ethylene propylene diene monomer rubber sealing strip and preparation method thereof |
| CN110878160A (en) * | 2018-09-05 | 2020-03-13 | 宁波庸禾新材料科技有限公司 | Environment-friendly weather-resistant thermoplastic elastomer material for new energy automobile |
| CN109438848A (en) * | 2018-11-12 | 2019-03-08 | 王诚 | A kind of environment-friendly type plastic sealing strip |
| CN110128755A (en) * | 2019-05-24 | 2019-08-16 | 烟台鑫汇包装有限公司 | A kind of aerosol valves door system EPT rubber packing gasket |
| CN110373036A (en) * | 2019-07-03 | 2019-10-25 | 河南工业职业技术学院 | A kind of seal rubber frame and preparation method and the quickly dismantled power distribution cabinet with it |
| CN110577706A (en) * | 2019-09-27 | 2019-12-17 | 江苏冠联新材料科技股份有限公司 | Halogen-free flame-retardant ethylene propylene diene monomer rubber for sealing strip and preparation method thereof |
| CN111635592A (en) * | 2020-05-08 | 2020-09-08 | 安徽建筑大学 | Cable composite material for engineering equipment and preparation method and application thereof |
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Application publication date: 20140416 |