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填料对乙烯-醋酸乙烯酯橡胶发泡材料性能的影响

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  • Key Words:乙烯-醋酸乙烯酯橡胶;;炭黑;;白炭黑;;发泡材料;;微观结构

  • Abstract:使用无转子发泡硫化仪、RPA橡胶分析仪、体视显微镜以及力学性能测试仪器等研究了白炭黑和炭黑对乙烯-醋酸乙烯酯橡胶(EVM)硫化发泡特性、发泡材料微观结构和性能的影响。结果表明,白炭黑用量较少时,体系焦烧时间和正硫化时间均延长,发泡剂分解速度提高。与相同用量的白炭黑体系相比,炭黑体系不易焦烧,正硫化时间较长,发泡剂分解速度较快。白炭黑体系泡孔质量好于炭黑体系,其中添加30份白炭黑的泡沫材料具有最低密度。RPA分析结果表明,减少白炭黑用量或采用炭黑作填料均能降低体系储能模量(G′)和损耗模量(G″),炭黑体系泡沫材料动态模量具有较强温度敏感性。

  • Volume:v.35;No.206

  • Issue:02

  • Translation or Not:no

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