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Influence of β nucleator on properties and crystallization process of PP
Author(s): 
Pages: 43-46
Year: Issue:  5
Journal: CHINA SYNTHETIC RESIN AND PLASTICS

Keyword:  聚丙烯β晶型成核剂增韧注塑温度;
Abstract: 研究了8晶型成核剂及其含量对聚丙烯(PP)材料力学性能的影响,考察了不同注塑温度下材料的性能和结晶性能.添加成核剂后,PP晶型由α晶型转变为β晶型,材料韧性和耐热性大幅提高,加入质量分数为0.08%的成核剂使PP悬臂粱冲击强度提高了近6倍,热变形温度提高了10℃,材料性能和结晶过程强烈地依赖于加工条件,注塑温度仅改变40℃左右,材料简支梁冲击强度和β晶型含量却提高了2倍多.
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