CN114940792A - 三元乙丙海绵橡胶 - Google Patents
三元乙丙海绵橡胶 Download PDFInfo
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- CN114940792A CN114940792A CN202210771408.3A CN202210771408A CN114940792A CN 114940792 A CN114940792 A CN 114940792A CN 202210771408 A CN202210771408 A CN 202210771408A CN 114940792 A CN114940792 A CN 114940792A
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- 229920002943 EPDM rubber Polymers 0.000 title claims abstract description 29
- 229920001971 elastomer Polymers 0.000 title claims abstract description 24
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000002745 absorbent Effects 0.000 claims abstract description 4
- 239000002250 absorbent Substances 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 4
- 239000004088 foaming agent Substances 0.000 claims abstract description 4
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 4
- 239000011593 sulfur Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- -1 ethylene, Propylene Chemical group 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000013040 rubber vulcanization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
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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
- C08J9/104—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof
- C08J9/105—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof containing sulfur
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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
- C08J9/0014—Use of organic additives
- C08J9/0033—Use of organic additives containing sulfur
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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
- C08J9/0066—Use of inorganic compounding ingredients
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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
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
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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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
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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
- 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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- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Sealing Material Composition (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
本发明公开了一种三元乙丙海绵橡胶，按重量份计，其包括：40份原胶，620份吸湿剂Ca0‑80，25份防焦剂E‑80，250份发泡剂OBSH‑75，160份促进剂ZDBC‑80，150份促进剂MBT‑80，140份促进剂DPTT‑70，90份促进剂ETU‑80，20份促进剂TDEC‑75，140份硫化剂DTDM‑80，150份硫磺S‑80。本发明三元乙丙海绵橡胶，其通过特殊的配方实现了让三元乙丙海绵橡胶在拉伸强度、扯断伸长率、撕裂强度、撕裂强度变化率等方面的性能比普通EPDM橡胶有明显提升。
Description
技术领域
本发明涉及橡胶密封条技术领域，特别涉及一种三元乙丙橡胶。
背景技术
EPDM(Ethylene Propylene Diene Monomer)即三元乙丙橡胶，是由乙烯、丙烯和少量的非共轭二烯烃的共聚物。其具有耐臭氧、耐热、耐候等耐老化性能优异，可广泛用于汽车部件、建筑用防水材料、电线电缆护套、耐热胶管、胶带、汽车密封件等领域。
EPDM的特性使其在乘用车密封条领域受到青睐。据不完全统计，EPDM作为乘用车密封条全世界每年约消费80万吨，同时企业对EPDM的物料性能的要求也越来越高，普通EPDM的拉伸强度、扯断伸长率、撕裂强度等技术指标已经不能满足企业的需要。
因此寻求更优化的EPDM橡胶条配方，获得更高性能的产品，推动乘用车密封条行业的质量提升，是EPDM橡胶条生产企业迫切需要解决的技术难题。
发明内容
有鉴于此，本发明的目的是提供一种三元乙丙海绵橡胶，以解决提升EPDM拉伸强度、扯断伸长率、撕裂强度等方面性能的技术问题。
本发明三元乙丙海绵橡胶按重量份计，包括：40份原胶，620份吸湿剂Ca0-80，25份防焦剂E-80，250份发泡剂OBSH-75，160份促进剂ZDBC-80，150份促进剂MBT-80，140份促进剂DPTT-70，90份促进剂ETU-80，20份促进剂TDEC-75，140份硫化剂DTDM-80，150份硫磺S-80。
本发明的有益效果：
本发明三元乙丙海绵橡胶，其通过特殊的配方实现了让三元乙丙海绵橡胶在拉伸强度、扯断伸长率、撕裂强度、撕裂强度变化率等方面的性能比普通EPDM橡胶有明显提升。
具体实施方式
本实施例中三元乙丙海绵橡胶，按重量份计，包括：40份原胶，620份吸湿剂Ca0-80，25份防焦剂E-80，250份发泡剂OBSH-75，160份促进剂ZDBC-80，150份促进剂MBT-80，140份促进剂DPTT-70，90份促进剂ETU-80，20份促进剂TDEC-75，140份硫化剂DTDM-80，150份硫磺S-80。
按配比将上述各原料加入密炼机中混炼得到混合胶料，然后将混合胶料通过开炼机热炼均匀后经挤出机挤出成型，挤出的胶条连续输送到微波橡胶硫化设备进行硫化处理，即得到三元乙丙海绵橡胶条。
对普通的三元乙丙海绵橡胶和本实施例中得到的三元乙丙海绵橡胶条的物理性能进行对比检测，结果如下表所示：
通过对比检测数据可知，本实施例中得到的三元乙丙海绵橡胶在拉伸强度、扯断伸长率、撕裂强度、撕裂强度变化率等方面的性能比普通EPDM橡胶有明显提升。
最后说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的宗旨和范围，其均应涵盖在本发明的权利要求范围当中。
Claims (1)
1.三元乙丙海绵橡胶，其特征在于：按重量份计，包括：40份原胶，620份吸湿剂Ca0-80，25份防焦剂E-80，250份发泡剂OBSH-75，160份促进剂ZDBC-80，150份促进剂MBT-80，140份促进剂DPTT-70，90份促进剂ETU-80，20份促进剂TDEC-75，140份硫化剂DTDM-80，150份硫磺S-80。
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| CN202210771408.3A CN114940792A (zh) | 2022-06-30 | 2022-06-30 | 三元乙丙海绵橡胶 |
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| CN202210771408.3A CN114940792A (zh) | 2022-06-30 | 2022-06-30 | 三元乙丙海绵橡胶 |
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| CN202210771408.3A Pending CN114940792A (zh) | 2022-06-30 | 2022-06-30 | 三元乙丙海绵橡胶 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105602123A (zh) * | 2016-02-01 | 2016-05-25 | 浙江仙通橡塑股份有限公司 | 模压海绵密封胶条 |
| CN109370065A (zh) * | 2018-10-15 | 2019-02-22 | 浙江仙通橡塑股份有限公司 | 一种一步法连续混炼的汽车密封条用混炼胶及其制备方法 |
| CN112852062A (zh) * | 2020-12-30 | 2021-05-28 | 上海荣南科技有限公司 | 一种用于替代行李箱密封条丁基不干胶的低密度海绵胶料及其复合挤出工艺 |
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2022
- 2022-06-30 CN CN202210771408.3A patent/CN114940792A/zh active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105602123A (zh) * | 2016-02-01 | 2016-05-25 | 浙江仙通橡塑股份有限公司 | 模压海绵密封胶条 |
| CN109370065A (zh) * | 2018-10-15 | 2019-02-22 | 浙江仙通橡塑股份有限公司 | 一种一步法连续混炼的汽车密封条用混炼胶及其制备方法 |
| CN112852062A (zh) * | 2020-12-30 | 2021-05-28 | 上海荣南科技有限公司 | 一种用于替代行李箱密封条丁基不干胶的低密度海绵胶料及其复合挤出工艺 |
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Application publication date: 20220826 |
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