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超细全硫化粉末NBR/EPDM共混物的结构与性能 被引量:6

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摘要 试验研究超细全硫化粉末NBR(UFPNBR)/EPDM共混物的硫化特性、相态结构、动态力学性能、加工性能及物理性能。UFPNBR粒子加入EPDM中明显影响了EPDM的硫化性能,UFPNBR/EPDM共混物采用过氧化物硫化体系硫化效果较好;透射电子显微镜和扫描电子显微镜观察表明,UFPNBR粒子在UFPNBR/EPDM共混物中始终为分散相,但在EPDM基体中没有分散成预期的纳米尺寸;动态力学热分析结果显示,共混物存在两个玻璃化温度,呈两相结构且界面结合较弱;橡胶加工分析仪分析结果表明,UFPNBR粒子在EPDM基体中形成了填料网络结构,使共混物的流动性能变差;UFPNBR对EPDM有一定补强作用,但补强作用不如传统的纳米无机填料。
出处 《橡胶工业》 CAS 北大核心 2006年第4期223-230,共8页 China Rubber Industry
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