稀土β成核剂与熔体温度对iPP制品结构与韧性的影响The Effect of Rare Earth β Nucleating Agent and Molten Temperature on the Structure and Toughness of iPP
潘亚敏;石素宇;常宝宝;郑国强;刘春太;
摘要(Abstract):
通过拉伸性能测试,考察了稀土类β成核剂和熔体温度对等规聚丙烯(iPP)注塑试样断裂韧性的影响,并用二维广角X射线衍射法(2D-WAXD)和差示扫描量热法(DSC)对它们的微观结构进行了研究。结果表明:纯iPP和加入β成核剂的iPP试样的断裂韧性随着熔体温度的升高而增加;稀土β成核剂因其具有较强的异相成核作用,从而使材料的断裂韧性得到较大提高。
关键词(KeyWords): 等规聚丙烯;熔体温度;β成核剂;微观结构;断裂韧性
基金项目(Foundation): 国家自然科学基金(项目511173171)资助
作者(Author): 潘亚敏;石素宇;常宝宝;郑国强;刘春太;
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DOI:
参考文献(References):
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