低纳米莫来石填充聚丙烯的结晶性能研究  

Crystallization Behavior of PP Filled with Nanomullite at Low Content

作　　者：刘琼琼[1] 徐冬梅[1] 丛后罗[1] 柳峰[1] 

机构地区：[1]徐州工业职业技术学院材料系,江苏徐州221140

出　　处：《塑料》2009年第2期98-100,共3页Plastics

摘　　要：在双螺杆挤出机中采用熔融共混工艺制备了纳米莫来石填充聚丙烯(PP)复合材料,莫来石的质量含量为1%、3%、5%、7%和10%。用DSC考察了填料含量、硅烷偶联剂KH-550(γ-氨基丙基三乙氧基硅烷)和加入增容剂MAPP(PP接枝马来酸酐)对聚丙烯结晶性能的影响。结果表明:纳米莫来石粉体作为一种新型的无机矿物填料,对PP有异相成核效应,结晶温度提高,熔点略有上升,能诱导β晶生成;KH-550和MAPP的使用对结晶影响很小。Nanomullite/PP composites containing 1 wt% ,3 wt% ,5 wt% ,7 and 10 wt% nanomullite were prepared by melt compounding in a two screw extruder. The effects of nanomullitc content, nanomullite treated with silane coupling agent KH-550 （γ-amino propyltriethoxy silane） and addition maleic anhydride grafted polypropylene （MAPP） as compatilizer on crystallization behaviors of PP were investigated. The DSC results demonstrated that nanomullite used as a new inorganic filler increased crystallization peak temperature and melting point,induced the 13 crystal of PP. The effect of KH-550 and MAPP on crystallization behavior was slight.

关 键 词：纳米莫来石 聚丙烯 复合材料 结晶性能 填充 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业] TB383[一般工业技术—材料科学与工程]