摘要
采用环酮类过氧化物3,6,9-三乙基-3,6,9-三甲基-1,4,7-三过氧壬烷(Cyclic),芳香族过氧化物过氧化二异丙苯(DCP)和脂肪族过氧化烷烃2,5-二甲基-2,5(二叔丁基过氧基)己烷(D25)通过反应挤出制备熔体质量流动速率分别为20 g/10 min和30 g/10 min左右的高流动抗冲聚丙烯(PP)。对产物的形态结构与力学性能进行了分析。结果表明:hiPP/Cyclic体系降解产物的冲击性能明显优于hiPP/D25和hiPP/DCP体系。结合热分析(DSC)和扫描电子显微镜(SEM)观察表明:hiPP/Cyclic降解产物的分散相尺寸小,分布均匀,和基体PP具有良好的相容性,是导致其冲击性能较好的主要原因。
High impact polypropylene with the melt flow index about 20 g/lO min and 30 g/lO mm were prepared by reactive extrusion using three peroxides (3, 6, 9Triethyl3, 6, 9trimethyl1, 4, 7triper oxynonane, Cyclic; 2, 5dimethyl2, 5di (tbutylperoxy) hexane, D25; dicumyl peroxide, DCP) and the morphology and mechanical properties of the products were investigated. The results showed that the im pact property of the degradation products for hiPP/Cyclic system was better than those of hiPP/DCP and hiPP/ D25 systems. DSC and SEM results showed that the size of dispersed phases of hiPP/Cyclic system was smal ler, the distribution of dispersed phases was homogeneous, and the compatibility between the matrixes was better, resulting in its good impact property.
出处
《塑料工业》
CAS
CSCD
北大核心
2012年第3期97-100,共4页
China Plastics Industry
基金
新世纪优秀人才资助计划(NCET-1-0562)
关键词
过氧化物
高抗冲聚丙烯
降解
分散相
Peroxide
High Impact Polypropylene
Degradation
Dispersed Phase