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超支化多元醇对乙烯-乙酸乙烯酯橡胶/聚乳酸共混发泡材料性能的影响

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  • Key Words:乙烯-乙酸乙烯酯橡胶;;聚乳酸;;多元醇;;发泡性能;;阻尼性能

  • Abstract:选用乙烯-乙酸乙烯酯橡胶(EVM 700)和聚乳酸作为基质材料,以过氧化二异丙苯为交联体系、偶氮二甲酰胺为发泡剂,并添加超支化多元醇,经模压发泡制备出橡塑共混发泡材料,研究了多元醇对发泡材料发泡性能及阻尼性能的影响。结果表明,加入多元醇后体系中的小泡孔长大,材料的泡孔由大小孔穿插的结构变为大小相对均匀的结构;发泡材料的有效阻尼温域拓宽,其中偶氮二甲酰胺用量为4份(质量)时材料的阻尼温域较宽(78.1℃);发泡材料的压缩强度减小,发泡后的密度减小,发泡倍率增大。

  • Volume:v.39

  • Issue:01

  • Translation or Not:no

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