CN115505214A - Modified ethylene propylene diene monomer and preparation method thereof - Google Patents
Modified ethylene propylene diene monomer and preparation method thereof Download PDFInfo
- Publication number
- CN115505214A CN115505214A CN202211267291.1A CN202211267291A CN115505214A CN 115505214 A CN115505214 A CN 115505214A CN 202211267291 A CN202211267291 A CN 202211267291A CN 115505214 A CN115505214 A CN 115505214A
- Authority
- CN
- China
- Prior art keywords
- modified ethylene
- diene monomer
- ethylene propylene
- propylene diene
- rubber
- Prior art date
- 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.)
- Pending
Links
- 229920002943 EPDM rubber Polymers 0.000 title claims abstract description 65
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 229920001971 elastomer Polymers 0.000 claims abstract description 39
- 239000005060 rubber Substances 0.000 claims abstract description 39
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 26
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 21
- 238000004073 vulcanization Methods 0.000 claims abstract description 14
- 239000002270 dispersing agent Substances 0.000 claims abstract description 13
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 10
- 239000011593 sulfur Substances 0.000 claims abstract description 10
- 239000006229 carbon black Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000005662 Paraffin oil Substances 0.000 claims abstract description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000011575 calcium Substances 0.000 claims abstract description 4
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims abstract description 4
- 239000012763 reinforcing filler Substances 0.000 claims abstract description 4
- 239000004322 Butylated hydroxytoluene Substances 0.000 claims description 23
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 23
- 229940095259 butylated hydroxytoluene Drugs 0.000 claims description 23
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 23
- 150000001875 compounds Chemical class 0.000 claims description 11
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 9
- 239000011259 mixed solution Substances 0.000 claims description 9
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 claims description 8
- 239000004902 Softening Agent Substances 0.000 claims description 7
- KEQFTVQCIQJIQW-UHFFFAOYSA-N N-Phenyl-2-naphthylamine Chemical compound C=1C=C2C=CC=CC2=CC=1NC1=CC=CC=C1 KEQFTVQCIQJIQW-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 239000012752 auxiliary agent Substances 0.000 abstract description 3
- 150000003254 radicals Chemical class 0.000 description 9
- 230000003064 anti-oxidating effect Effects 0.000 description 8
- 230000003078 antioxidant effect Effects 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000006701 autoxidation reaction Methods 0.000 description 3
- 239000000852 hydrogen donor Substances 0.000 description 3
- 238000010525 oxidative degradation reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000004636 vulcanized rubber Substances 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000013040 rubber vulcanization Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 230000000550 effect on aging Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- -1 ethylene, propylene Chemical group 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 238000010059 sulfur vulcanization Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a modified ethylene propylene diene monomer rubber, which comprises the following components in parts by mass: 45% of raw rubber, 45% of reinforcing filler, 7% of softening dispersant, 2% of vulcanization aid, and 1% of BHT; the filling reinforcing agent comprises one or a mixture of two of carbon black and calcium powder; the softening dispersant comprises paraffin oil; the vulcanization auxiliary agent comprises sulfur; the modified ethylene propylene diene monomer also comprises the following components: an accelerator and an anti-aging agent. The invention also discloses a preparation method of the modified ethylene propylene diene monomer rubber, and the preparation method of the modified ethylene propylene diene monomer rubber is used for preparing the modified ethylene propylene diene monomer rubber. The modified ethylene propylene diene monomer rubber can further improve the oxidation resistance and the anti-aging performance of the rubber by matching BHT with an anti-aging agent, thereby effectively prolonging the service life of the modified ethylene propylene diene monomer rubber.
Description
Technical Field
The invention relates to the technical field of rubber preparation, in particular to modified ethylene propylene diene monomer.
Background
Ethylene Propylene Diene Monomer (EPDM) is a copolymer of ethylene, propylene and a small amount of a non-conjugated diene, and is one of ethylene propylene rubbers. The main chain of EPDM consists of chemically stable saturated hydrocarbon, and the side chain contains unsaturated double bond, so that EPDM has ozone resistance, heat resistance, weather resistance and other aging resistance. Due to the aging resistance of EPDM, EPDM is applied to the fields of automobile parts, waterproof materials for buildings, heat-resistant rubber tubes and the like. However, due to the aging effect of hot air, the pendant group of the EPDM polymeric chain can be oxidized, and the main chain can be thermally rearranged and degraded, so that the EPDM loses the physical and mechanical properties. Therefore, it is necessary to improve the high temperature resistance of EPDM by adding a heat stabilizer to meet the use requirements under different temperature environments.
In the prior ethylene propylene diene monomer, anti-oxidation and anti-aging treatment is generally carried out on rubber by adding an anti-aging agent. However, the oxidation resistance of the conventional ethylene propylene diene monomer is still insufficient under the working condition of high oxygen concentration.
Disclosure of Invention
Based on the above, it is necessary to provide a modified ethylene propylene diene monomer rubber aiming at the technical problem that the existing ethylene propylene diene monomer rubber has insufficient oxidation resistance under the working condition of high oxygen concentration.
A modified ethylene propylene diene monomer comprises the following components in parts by mass: 45% of raw rubber, 45% of reinforcing filler, 7% of softening and dispersing agent, 2% of vulcanization aid, and 1% of BHT.
In one embodiment, the filler reinforcing agent includes one or a mixture of two of carbon black and calcium powder.
In one embodiment, the softening and dispersing agent comprises paraffin oil.
In one embodiment, the vulcanization aid includes sulfur.
In one embodiment, the modified ethylene propylene diene monomer further comprises the following components: accelerators and anti-aging agents.
In one embodiment, the accelerator includes one of 2-mercaptobenzothiazole and 2, 2' -dithiodibenzothiazole.
In one embodiment, the antioxidant comprises one or more of N-phenyl-alpha-aniline, N-phenyl-beta-naphthylamine and 2,2,4-trimethyl 1,2-dihydroquine.
A preparation method of modified ethylene propylene diene monomer is used for preparing the modified ethylene propylene diene monomer, and comprises the following steps:
s1, mixing 1% of BHT (butylated hydroxytoluene) and 7% of softening dispersant, and performing mixing dispersion at 40-70 ℃ to obtain a mixed solution;
s2, mixing the mixed solution, 45% of raw rubber and 45% of filling reinforcing agent, and then mixing at 40-50 ℃ to obtain modified ethylene propylene diene monomer master batch;
s3, standing the modified ethylene propylene diene monomer master batch for 12-24h, mixing with 2% of a vulcanization aid, and mixing at 40-50 ℃ to obtain a modified ethylene propylene diene monomer rubber compound;
s4, standing the modified ethylene propylene diene monomer rubber compound for 12-24h, and then vulcanizing to obtain the modified ethylene propylene diene monomer rubber.
In one embodiment, the step S2 further includes mixing the mixed solution, 45% of raw rubber, 45% of filling reinforcing agent, accelerator, and anti-aging agent, and then mixing at 40-50 ℃ to obtain the modified ethylene propylene diene monomer rubber master batch.
In conclusion, the modified ethylene propylene diene monomer disclosed by the invention can further improve the oxidation resistance and the anti-aging performance of the rubber by matching BHT with an anti-aging agent, so that the service life of the modified ethylene propylene diene monomer is effectively prolonged. BHT can inhibit and delay the oxidative degradation of rubber as antioxidant to prolong the service life, and BHT can react with chain-growth free radicals in autoxidation to eliminate free radicals, thereby interrupting the chain reaction. BHT can be used as a hydrogen donor and a free radical trapping agent in an antioxidation process. Because the 2,6 position has 2 strong electron-pushing groups, BHT has very strong antioxidation effect, and is matched with an anti-aging agent, so that the antioxidation performance of the modified ethylene propylene diene monomer is improved to the maximum extent.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
The invention discloses a modified ethylene propylene diene monomer rubber, which comprises the following components in parts by mass: 45% of raw rubber, 45% of reinforcing filler, 7% of softening and dispersing agent, 2% of vulcanization aid, and 1% of BHT. In the embodiment, BHT as an antioxidant can inhibit and delay the oxidative degradation of rubber to prolong the service life, and BHT can react with chain-growth free radicals in autoxidation to eliminate the free radicals, so that the chain reaction is interrupted. BHT can be used as a hydrogen donor and a free radical trapping agent in an antioxidation process. Because of 2 strong electron-pushing groups at the 2,6 position, BHT has strong antioxidant effect.
Specifically, the filling reinforcing agent comprises one or a mixture of two of carbon black and calcium powder. The filling reinforcing agent is a reinforcing filling system of rubber, and the reinforcing filling agent can improve the performances of the rubber such as abrasion resistance, tear strength, tensile strength, nuclear quantity, swelling resistance and the like.
The softening and dispersing agent comprises paraffin oil. The softening dispersant is an assistant for improving the processability and the service performance of rubber, can increase the plasticity of rubber materials, reduce the viscosity of the rubber materials and the mixing temperature, improve the dispersibility and the mixing property, and improve the tensile strength, the elongation and the wear resistance of vulcanized rubber.
The vulcanization aid comprises sulfur. The vulcanization auxiliary agent mainly refers to a vulcanizing agent and an accelerator, and is only applied to the mixing type polyurethane elastomer. The vulcanizing agent comprises isocyanate, peroxide and sulfur. In the embodiment, the raw rubber is vulcanized by adopting sulfur, and the sulfur vulcanization is characterized in that a large amount of an accelerator needs to be added, the sulfur vulcanized rubber compound can be processed like general rubber, the rubber compound has long storage time and good comprehensive performance, and can be filled with carbon black to improve the hardness.
Further, the modified ethylene propylene diene monomer rubber also comprises the following components: accelerators and anti-aging agents.
Specifically, the accelerator includes one of 2-mercaptobenzothiazole and 2, 2' -dithiodibenzothiazole. The accelerator is a rubber vulcanization accelerator. Rubber vulcanization is mainly performed using sulfur, but sulfur reacts with rubber very slowly, and therefore a vulcanization accelerator is produced at the same time. The accelerator is added into the rubber material to promote the activation of the vulcanizing agent, so that the crosslinking reaction of the vulcanizing agent and rubber molecules is accelerated, and the effects of shortening the vulcanizing time and reducing the vulcanizing temperature are achieved.
The anti-aging agent comprises one or a mixture of more of N-phenyl-alpha-aniline, N-phenyl-beta-naphthylamine and 2,2,4-trimethyl 1,2-dihydroquine. The anti-aging agent is a substance capable of delaying the chemical combination aging of high polymers. Most of them can inhibit the action of oxygen, and some can inhibit the action of heat or light, so that the service life of the product can be prolonged. Wherein, the N-phenyl-alpha-aniline has good protection effect on aging effects such as heat, oxygen, flexion and weather, and is a general anti-aging agent for natural rubber, synthetic rubber and reclaimed rubber; n-phenyl-beta-naphthylamine natural rubber, synthetic rubber and latex. Has good protection effect on heat, oxygen, flex cracking and general aging factors.
The invention also discloses a preparation method of the modified ethylene propylene diene monomer, which is used for preparing the modified ethylene propylene diene monomer and comprises the following steps:
s1, mixing 1% of BHT and 7% of softening and dispersing agent, and mixing and dispersing at 40-70 ℃ to obtain a mixed solution. In this embodiment, the softening and dispersing agent adopts paraffin oil, which can effectively improve the weather resistance and flexibility of rubber and reduce volatile substances generated by the rubber at high temperature while improving the dispersion degree of BHT.
And S2, mixing the mixed solution, 45% of raw rubber and 45% of filling reinforcing agent, and then mixing at 40-50 ℃ to obtain the modified ethylene propylene diene monomer master batch. In this embodiment, carbon black is used as the filling reinforcing agent, and the carbon black can reinforce the rubber, thereby enhancing the structural strength and the wear resistance of the rubber.
S3, standing the modified ethylene propylene diene monomer master batch for 12-24h, mixing with 2% of a vulcanization aid, and mixing at 40-50 ℃ to obtain the modified ethylene propylene diene monomer rubber compound. In the embodiment, the vulcanization auxiliary agent adopts sulfur, the sulfur-vulcanized rubber compound can be processed as common rubber, the rubber compound has long storage time and good comprehensive performance, and can be filled with carbon black to improve the hardness.
S4, standing the modified ethylene propylene diene monomer rubber compound for 12-24h, and then vulcanizing to obtain the modified ethylene propylene diene monomer rubber.
Further, the step S2 also comprises the step of mixing the mixed solution, 45 percent of raw rubber, 45 percent of filling reinforcing agent, accelerator and anti-aging agent, and then mixing at 40-50 ℃ to obtain the modified ethylene propylene diene monomer rubber master batch. In the embodiment, the 2-mercaptobenzothiazole is adopted as the accelerator, and the accelerator can promote the activation of the vulcanizing agent when added into the rubber compound, so that the crosslinking reaction of the vulcanizing agent and rubber molecules is accelerated, and the effects of shortening the vulcanizing time and reducing the vulcanizing temperature are achieved.
In conclusion, the modified ethylene propylene diene monomer disclosed by the invention can further improve the oxidation resistance and the anti-aging performance of the rubber by matching BHT with an anti-aging agent, so that the service life of the modified ethylene propylene diene monomer is effectively prolonged. BHT can inhibit and delay the oxidative degradation of rubber as antioxidant to prolong the service life, and BHT can react with chain-growth free radicals in autoxidation to eliminate free radicals, thereby interrupting the chain reaction. BHT can be used as a hydrogen donor and a free radical trapping agent in an antioxidation process. Because 2 strong electron-pushing groups are arranged on the 2,6 position, BHT has strong antioxidation effect, and is matched with an anti-aging agent, so that the antioxidation performance of the modified ethylene propylene diene monomer is improved to the maximum extent.
All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A modified ethylene propylene diene monomer is characterized by comprising: the following components in percentage by mass: 45% of raw rubber, 45% of reinforcing filler, 7% of softening and dispersing agent, 2% of vulcanization aid, and 1% of BHT.
2. The modified ethylene propylene diene monomer of claim 1, wherein the filler reinforcing agent comprises one or a mixture of two of carbon black and calcium powder.
3. The modified ethylene-propylene-diene rubber according to claim 1, wherein the softening dispersant comprises paraffin oil.
4. The modified ethylene-propylene-diene rubber according to claim 1, wherein the vulcanization aid comprises sulfur.
5. The modified ethylene propylene diene monomer of claim 1, wherein the modified ethylene propylene diene monomer further comprises the following components: an accelerator and an anti-aging agent.
6. The modified ethylene propylene diene monomer of claim 5, wherein the accelerator comprises one of 2-mercaptobenzothiazole and 2, 2' -dithiodibenzothiazole.
7. The modified ethylene propylene diene monomer of claim 5, wherein the anti-aging agent comprises one or a mixture of more of N-phenyl-alpha-aniline, N-phenyl-beta-naphthylamine and 2,2,4-trimethyl 1,2-dihydroquine.
8. A preparation method of the modified ethylene propylene diene monomer rubber of claims 1-7, characterized by comprising the following steps:
s1, mixing 1% of BHT (butylated hydroxytoluene) and 7% of softening dispersant, and performing mixing dispersion at 40-70 ℃ to obtain a mixed solution;
s2, mixing the mixed solution, 45% of raw rubber and 45% of filling reinforcing agent, and then mixing at 40-50 ℃ to obtain modified ethylene propylene diene monomer master batch;
s3, standing the modified ethylene propylene diene monomer master batch for 12-24 hours, mixing with 2% of the vulcanization aid, and mixing at 40-50 ℃ to obtain a modified ethylene propylene diene monomer rubber compound;
s4, standing the modified ethylene propylene diene monomer rubber compound for 12-24h, and then vulcanizing to obtain the modified ethylene propylene diene monomer rubber.
9. The method for preparing modified ethylene propylene diene monomer according to claim 8, wherein the step S2 further comprises mixing the mixed solution, 45% of raw rubber, 45% of filling reinforcing agent, 3% of accelerator and 1% of anti-aging agent, and then mixing at 40-50 ℃ to obtain the modified ethylene propylene diene monomer master batch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211267291.1A CN115505214A (en) | 2022-10-17 | 2022-10-17 | Modified ethylene propylene diene monomer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211267291.1A CN115505214A (en) | 2022-10-17 | 2022-10-17 | Modified ethylene propylene diene monomer and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115505214A true CN115505214A (en) | 2022-12-23 |
Family
ID=84511128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211267291.1A Pending CN115505214A (en) | 2022-10-17 | 2022-10-17 | Modified ethylene propylene diene monomer and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115505214A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206384A (en) * | 2011-05-10 | 2011-10-05 | 易宝(福建)高分子材料有限公司 | Halogen-free environment-friendly ethylene propylene diene monomer (EPDM) rubber closed hole foam material and preparation method thereof |
| CN102731823A (en) * | 2012-06-12 | 2012-10-17 | 宜兴市昌华过滤器材有限公司 | Novel rubber antioxidant and preparation method thereof |
| CN103881241A (en) * | 2013-12-20 | 2014-06-25 | 柳州日高橡胶制品有限责任公司 | EPDM (Ethylene-Propylene-Diene Monomer) rubber composition and preparation method thereof |
| CN107189236A (en) * | 2017-06-28 | 2017-09-22 | 南京利德东方橡塑科技有限公司 | Sulfur cross-linking EPT rubber composition, preparation method, purposes and its application product that a kind of heat-proof aging, low pressure become |
| CN111100387A (en) * | 2020-01-04 | 2020-05-05 | 河北九洲橡胶科技股份有限公司 | High-temperature-resistant conveyer belt covering rubber for cement plant and preparation process thereof |
| CN111808374A (en) * | 2019-04-11 | 2020-10-23 | 天津中和胶业股份有限公司 | Ethylene propylene diene monomer rubber compound |
-
2022
- 2022-10-17 CN CN202211267291.1A patent/CN115505214A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206384A (en) * | 2011-05-10 | 2011-10-05 | 易宝(福建)高分子材料有限公司 | Halogen-free environment-friendly ethylene propylene diene monomer (EPDM) rubber closed hole foam material and preparation method thereof |
| CN102731823A (en) * | 2012-06-12 | 2012-10-17 | 宜兴市昌华过滤器材有限公司 | Novel rubber antioxidant and preparation method thereof |
| CN103881241A (en) * | 2013-12-20 | 2014-06-25 | 柳州日高橡胶制品有限责任公司 | EPDM (Ethylene-Propylene-Diene Monomer) rubber composition and preparation method thereof |
| CN107189236A (en) * | 2017-06-28 | 2017-09-22 | 南京利德东方橡塑科技有限公司 | Sulfur cross-linking EPT rubber composition, preparation method, purposes and its application product that a kind of heat-proof aging, low pressure become |
| CN111808374A (en) * | 2019-04-11 | 2020-10-23 | 天津中和胶业股份有限公司 | Ethylene propylene diene monomer rubber compound |
| CN111100387A (en) * | 2020-01-04 | 2020-05-05 | 河北九洲橡胶科技股份有限公司 | High-temperature-resistant conveyer belt covering rubber for cement plant and preparation process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4983678A (en) | Curable rubber composition | |
| DE69526845T3 (en) | STRAPS OF ETHYLENE-ALPHA-OLEFIN | |
| EP1205515B1 (en) | Ethylene-Alpha-Olefin belting | |
| CN110713640B (en) | Rubber composition and processing method, and rubber product and production method using same | |
| CN110713634B (en) | Rubber composition, processing method and application | |
| US5053450A (en) | Elastomer compositions | |
| JP2006526694A (en) | Co-reagent for preparing thermoplastic elastomer blends of rubber and polyolefin | |
| EP3822313B1 (en) | Highly insulated rubber composition, processing method therefor, and uses thereof | |
| JP2005523947A (en) | EPDM compounds for dynamic applications | |
| EP0590423A2 (en) | Process for producing vulcanized rubber composition | |
| CN110713667B (en) | Anti-aging rubber composition, processing method and application | |
| US4882387A (en) | Co-curing of NR/EPDM rubber bands | |
| CN115505214A (en) | Modified ethylene propylene diene monomer and preparation method thereof | |
| US4931508A (en) | Co-curing of NR/EPDM rubber blends | |
| CN116769257A (en) | Wear-resistant lubricating rubber material and preparation method thereof | |
| US3456038A (en) | Blends of ethylene-propylene rubber and atactic polypropylene | |
| JP3583593B2 (en) | Crosslinkable rubber composition, and crosslinked rubber thereof | |
| CN108359179B (en) | Rubber composition, processing method and application thereof, and sealing member for capacitor comprising rubber composition | |
| CN115678172A (en) | EPDM rubber containing rubber powder and preparation method thereof | |
| KR100332684B1 (en) | Rubber Composition with Activated Zinc Oxide | |
| KR20000073839A (en) | Highly Hardness Rubber Composition Using Liquid Natural Rubber | |
| RU2755481C1 (en) | Elastomeric composition and method for production thereof | |
| KR100394547B1 (en) | The method of improving properties of epdm rubber | |
| Nguyen et al. | Preparation and Investigation of the Mechanical and Thermal Properties of Styrene Butadiene Rubber using Dicumyl Peroxide as Curing Agent | |
| US3528942A (en) | Method of cross-linking amorphous polymers and copolymers of alpha-olefins and the resultant products |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20221223 |
|
| WD01 | Invention patent application deemed withdrawn after publication |