过氧化物硫化EPDM发泡材料的研制 |
Development of peroxide-vulcanized EPDM foam |
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DOI: |
中文关键词: EPDM 发泡材料 过氧化物 甲基乙烯基硅橡胶 配方设计 |
英文关键词: EPDM foam peroxide MVQ formulation |
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中文摘要: |
探讨了采用过氧化物硫化的EPDM发泡材料的配方设计和工艺。EPDM发泡材料的优化配方为:EPDM[或EPDM/甲基乙烯基硅橡胶(并用比90/10)并用体系]100;2#气相法白炭黑 50;30#机油 10;乙二醇 3;硫化剂DCP 2~3;氧化锌 8;发泡剂AC 8;调节剂A 1;调节剂B 0.5。EPDM的塑炼辊温为(23±5) ℃,胶料的混炼辊温为60~70 ℃。混炼后压出的胶片密实,无气泡和杂质,表面光滑平整。装模用的胶片完整且厚度均匀一致。胶料的硫化条件为:一段 170 ℃×(9~10)min;二段 170 ℃×10 min。优化配方的发泡材料物理性能较好。 |
英文摘要: |
The formulation and processing technology of peroxide-vulcanized EPDM foam were investigated.The optimized formula of EPDM foam was as follows:EPDM or EPDM/MVQ(90/10) 100;2# fume silica 50;30# engine oil 10;glycol 3;DCP 2~3;zinc oxide 8;blowing agent AC 8;conditioning agent A 1;conditioning agent B 0.5.EPDM was plasticated at(23±5) ℃ and the compound was mixed at 60~70 ℃.The milled sheet featured uniform,dense,smooth and free of air bubble and foreign impurity.The vulcanizing conditions were as follows:for first stage,170 ℃×(9~10)min;for second stage,170 ℃×10 min.The optimized formula gave EPDM foam better physical properties. |
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