| Effect of post-cure conditions on properties of epichlorohydrin copolymer |
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| DOI： |
| Key Words: epichlorohydrin copolymer；post-cure；compression set；crosslink density；oil resistance；heat resistance |
| Author Name | Affiliation | | LI Zhiwei | South China University of Technology | | WANG Dizhen | South China University of Technology | | CHENG Wanli | South China University of Technology |
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| Abstract: |
| The effect of the post-cure conditions on properties of epichlorohydrin copolymer(ECO) was investigated.The results showed that when ECO was post-cured，the modulus at 100% increased，the tensile strength and Shore A hardness increased at first and then decreased，the elongation at break，tensile permanent set and tear strength decreased；the heat resistance changed little；and the oil resistance at room temperature improved.The post-cure at high temperature for shorter time was beneficial to decreasing the compression set.The crosslink density increased at first and then decreased as the post-cure temperature reached 150 ℃，and the higher the post-cure temperature was，the faster the crosslink density decreased. |
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