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纳米ZnO对MC尼龙结构和性能的影响

, PP. 68-72

Keywords: 原位聚合法,MC尼龙,纳米ZnO,动态高温XRD

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Abstract:

采用原位聚合反应制备了纳米ZnO/MC尼龙6复合材料。对所制备的复合材料进行力学性能、形貌、结构检测及DSC、XRD分析,结果表明:复合材料中的ZnO粒径小于100nm,分布均匀;纳米ZnO/MC尼龙6复合材料拉伸强度比纯MC尼龙6提高20%;断裂伸长率提高33%;弯曲模量提高36%;冲击强度提高87%。纳米ZnO的加入对α晶型的衍射特征峰影响不大,不改变尼龙6的结晶形态,但使晶粒度加大,结晶度减小;动态高温XRD分析表明,加入纳米ZnO,能提高MC尼龙融熔温度,纳米ZnO/MC尼龙6复合材料的结晶形态和相对结晶度在高低温度间基本是可逆的。

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