摘要
将苯甲酸钠(SB)成核剂负载到云母(Mica)和蒙脱土(MMT)表面,考察两种复合成核体系对聚丙烯(PP)结晶性能的影响。结果表明:SB分别与Mica和MMT有协同成核作用,负载处理后成核剂能够较好地分散在体系中,起到良好的成核作用,使得结晶峰温度和结晶速率提高,同时大大地减小了晶体尺寸,有较好的成核效率。但是填料的尺寸对负载效果没有太大的影响。
Sodium benzoate （SB） was deposited on the surface of mica and MMT, and their effects on the crystallization properties of potypropylene （PP） were investigated. The result showed that SB had synergistic nucleation effect with mica and MMT, respectively. Meanwhile, the depositing treatment can disperse SB well in PP matrix to enhance the crystallization peak temperature and crystallization rate, and decrease the size of crystal greatly with well nucleating efficiency. However, the size of fillers had obvious influence on the depositing treatment.
出处
《塑料工业》
CAS
CSCD
北大核心
2011年第5期91-95,共5页
China Plastics Industry
关键词
聚丙烯
成核剂
填料
结晶性能
Polypropylene
Nucleator
Filler
Crystallization Property
