CN109096618A - A kind of modified EPT rubber compounding - Google Patents
A kind of modified EPT rubber compounding Download PDFInfo
- Publication number
- CN109096618A CN109096618A CN201810812631.1A CN201810812631A CN109096618A CN 109096618 A CN109096618 A CN 109096618A CN 201810812631 A CN201810812631 A CN 201810812631A CN 109096618 A CN109096618 A CN 109096618A
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- CN
- China
- Prior art keywords
- rubber compounding
- modified ept
- ept rubber
- rubber
- agent
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- 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
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- 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
- C08J9/0066—Use of inorganic compounding ingredients
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—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
- C08J2323/16—Ethene-propene or ethene-propene-diene copolymers
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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
- C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2471/02—Polyalkylene oxides
-
- 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
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
- C08J2491/06—Waxes
Abstract
The present invention relates to rubber materials, more particularly to a kind of modified EPT rubber compounding, including following components in percentage by weight: ethylene propylene diene rubber 25%-30%, carbon black 30%-35%, precipitated calcium carbonate 18%-22%, paraffin oil 15%-20%, zinc oxide 1%-2%, foaming agent 0.2%-0.3%, PEG4000 0.3%-0.5%, dispersing agent 0.3%-0.5%, vulcanizing agent 0.2%-0.4%, promotor 0.5%-2%.Of the invention is preferentially: improving curing efficiency, obtained rubbery intensity is high, and elasticity is good, stable homogeneous, heat-and corrosion-resistant.
Description
Technical field
The present invention relates to rubber materials more particularly to a kind of modified EPT rubber compoundings.
Background technique
Ethylene propylene diene rubber is to be copolymerized in the presence of a catalyst by three kinds of ethylene, propylene and non-conjugated diene monomers and obtained
It arrives, mainly has ethylidene norbornene etc. usually as the unsaturated diene of Third monomer.Ethylene propylene diene rubber has excellent
Weatherability, ozone resistance, resistance to ag(e)ing and heat resistance, good chemical stability and good electrical insulating property and by praising
Reputation is particularly applied to automobile component, such as be used as weather strip for automobile, wire and cable since its excellent performance is widely applied
Deng.
However, with the expansion of application, it is also higher and higher to the performance requirement of ethylene propylene diene rubber.On the one hand, rubber sulphur
Change process pollutes environment and influences workers ' health with the presence of many dust；In addition, in the efficient information age, ternary second
The vulcanization time of third rubber is longer, does not meet the requirement of high efficiency, meanwhile, in process of production, each analog assistant does not conform to
Reason addition, is easy to cause final end properties unstable, product homogeneity is poor.It needs to look for a kind of suitable modified EPT
Rubber can be more suitable for existing while meeting the primary attributes such as heat-resisting traditional ethylene propylene diene rubber, high temperature resistant, corrosion-resistant
Foundry industry growth requirement.
Summary of the invention
In view of the above problems, the present invention proposes a kind of environmental protection, efficient and stable performance formula of ethylene propylene terpolymer with.
The present invention is achieved by the following technical solutions:
A kind of modified EPT rubber compounding, including following components in percentage by weight: ethylene propylene diene rubber 25%-30%, charcoal
Black 30%-35%, precipitated calcium carbonate 18%-22%, paraffin oil 15%-20%, zinc oxide 1%-2%, foaming agent 0.2%-0.3%,
PEG4000 is 0.3%-0.5%, dispersing agent 0.3%-0.5%, vulcanizing agent 0.2%-0.4%, promotor 0.5%-2%.
Preferably, the paraffin oil uses 400# paraffin oil.
Preferably, the foaming agent is azodicarbonamide.
Preferably, the dispersing agent is L-24.
Preferably, the vulcanizing agent is S-80.
Preferably, the promotor is EG-3M-75GE.
In the present invention, ethylene propylene diene rubber, carbon black and calcium carbonate are all the raw material of synthetic rubber, wherein are used
Precipitated calcium carbonate replaces ordinary calcium carbonate, precipitated calcium carbonate powder have grain shape rule, narrower particle size distribution, partial size compared with
The features such as small, have half reinforcing, cooperate carbon black, the tensile strength, tearing strength and wear-resisting property of vulcanizate can be greatly improved,
And not will lead to excessively high stress at definite elongation under height filling, easily disperse in sizing material, influence to vulcanize, light filling calcium carbonate
Vulcanized mechanical is higher than the vulcanizate of traditional powdered whiting.
Azodicarbonamide (Ac) is a kind of foaming agent in rubber process, but the decomposition temperature of azodicarbonamide exists
200 ~ 210 DEG C, i.e., the temperature of azodicarbonamide performance foaming effect is at least at 200 DEG C, but the processing temperature of rubber is low
Zinc oxide is playing the role of promotor in this temperature, the present invention, while improving curing efficiency, moreover it is possible to activate azo
The pyrolysis of diformamide promotes exothermic reaction to occur to low temperature direction, inhibits the endothermic reaction to occur to high temperature direction, mentions
Foaming effect of the high azodicarbonamide in rubber process is to improve the elasticity of rubber.
PEG4000(polyethylene glycol) activating agent can be played the role of in the present invention, azo diformazan on the one hand can be improved
The stability and uniformity of amide foaming, the product uniform elastic made are stablized, and on the other hand, the sulphur of vulcanizing agent can be improved
Change efficiency, reduces vulcanization time.
EG-3M-75G is predispersed masterbatch promotor, and the present invention forms rubber chemicals rubber master batch using vulcanizing agent S-80 as carrier
Grain, compared to traditional vulcanization of rubber, no dust, environmental protection；Easily dispersion, substantially increases rate of dispersion and dispersing uniformity；With
Sizing material has good compatibility, and curing efficiency is high, saves vulcanization time while can reduce energy consumption.
Of the invention is preferentially:
(1) vulcanization time for reducing ethylene propylene diene rubber, improves curing efficiency.
(2) compared to traditional safer environmental protection of ethylene propylene diene rubber, there is good chemical inertness.
(3) rubbery intensity obtained is high, and elasticity is good, stable homogeneous, heat-and corrosion-resistant.
Specific embodiment
This specific implementation method is only explanation of the invention, is not limitation of the present invention.Those skilled in the art
Member's any change made after having read specification of the invention, as long as within the scope of the claims, it all will be by
To the protection of Patent Law.
Embodiment 1:
Ethylene propylene diene rubber 30%, carbon black 34.5%, precipitated calcium carbonate 18%, 400# paraffin oil 15%, zinc oxide 1%, two formyl of azo
Amine 0.2%, PEG4000 0.3%, L-24 0.3%, S-80 0.2%, EG-3M-75GE 0.5%.
Embodiment 2:
Ethylene propylene diene rubber 25%, carbon black 35%, precipitated calcium carbonate 22%, 400# paraffin oil 15%, zinc oxide 1.5%, two formyl of azo
Amine 0.2%, PEG4000 0.3%, L-24 0.3%, S-80 0.2%, EG-3M-75GE 0.5%.
Embodiment 3:
Ethylene propylene diene rubber 28%, carbon black 32%, precipitated calcium carbonate 18.2%, 400# paraffin oil 18%, zinc oxide 1.5%, azo diformazan
Amide 0.2%, PEG4000 0.4%, L-24 0.4%, S-80 0.3%, EG-3M-75GE 1%.
Wherein, in embodiment 1, on cost the technological parameter of thickness 2mm and physical data are as follows, and comparative example is tradition three
First EP rubbers formula is with the data under process conditions:
Table 1: the vulcanization time under different curing temperatures
Table 2: embodiment 1 obtains the physical data of product
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of modified EPT rubber compounding, which is characterized in that including following components in percentage by weight: ethylene-propylene-diene monomer
Glue 25%-30%, carbon black 30%-35%, precipitated calcium carbonate 18%-22%, paraffin oil 15%-20%, zinc oxide 1%-2%, foaming agent 0.2%-
0.3%, PEG4000 0.3%-0.5%, dispersing agent 0.3%-0.5%, vulcanizing agent 0.2%-0.4%, promotor 0.5%-2%.
2. a kind of modified EPT rubber compounding according to claim 1, it is characterised in that: the paraffin oil uses
400# paraffin oil.
3. a kind of modified EPT rubber compounding according to claim 1, it is characterised in that: the foaming agent is azo
Diformamide.
4. a kind of modified EPT rubber compounding according to claim 1, it is characterised in that: the dispersing agent is L-
24。
5. a kind of modified EPT rubber compounding according to claim 1, it is characterised in that: the vulcanizing agent is S-
80。
6. a kind of modified EPT rubber compounding according to claim 1, it is characterised in that: the promotor is EG-
3M-75GE。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810812631.1A CN109096618A (en) | 2018-07-23 | 2018-07-23 | A kind of modified EPT rubber compounding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810812631.1A CN109096618A (en) | 2018-07-23 | 2018-07-23 | A kind of modified EPT rubber compounding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109096618A true CN109096618A (en) | 2018-12-28 |
Family
ID=64847255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810812631.1A Pending CN109096618A (en) | 2018-07-23 | 2018-07-23 | A kind of modified EPT rubber compounding |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115895127A (en) * | 2022-11-21 | 2023-04-04 | 智筑汇创(上海)新材料科技有限公司 | Microporous fast-elastic rubber material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336971A (en) * | 2011-07-19 | 2012-02-01 | 天津鹏翎胶管股份有限公司 | Microwave vulcanized ethylene propylene diene monomer (EPDM) sponge sheath and processing method thereof |
| CN105037963A (en) * | 2015-08-24 | 2015-11-11 | 天津中和胶业股份有限公司 | EPDM flame-retardant sponge sealing strip for high-speed rail |
| CN106867117A (en) * | 2017-02-28 | 2017-06-20 | 保定威奕汽车有限公司 | Sealing strip is rubber-coated and its preparation method and door weather strip and its preparation method |
-
2018
- 2018-07-23 CN CN201810812631.1A patent/CN109096618A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336971A (en) * | 2011-07-19 | 2012-02-01 | 天津鹏翎胶管股份有限公司 | Microwave vulcanized ethylene propylene diene monomer (EPDM) sponge sheath and processing method thereof |
| CN105037963A (en) * | 2015-08-24 | 2015-11-11 | 天津中和胶业股份有限公司 | EPDM flame-retardant sponge sealing strip for high-speed rail |
| CN106867117A (en) * | 2017-02-28 | 2017-06-20 | 保定威奕汽车有限公司 | Sealing strip is rubber-coated and its preparation method and door weather strip and its preparation method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115895127A (en) * | 2022-11-21 | 2023-04-04 | 智筑汇创(上海)新材料科技有限公司 | Microporous fast-elastic rubber material and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181228 |