微米铜颗粒对Cu/LDPE/MVQ复合材料非等温结晶性能的影响  

Influence of Micron Copper Particles on Non-Isothermal Crystallization Behavior of Cu/LDPE/MVQ Composite

作　　者：李启刚[1] 蔡水洲[1] 夏先平[1] 张会平[1] 王英英[1] 

机构地区：[1]华中科技大学材料科学与工程学院材料成形与模具技术国家重点实验室,湖北武汉430074

出　　处：《化学与生物工程》2014年第3期9-12,共4页Chemistry & Bioengineering

基　　金：国家科技支撑计划资助项目(20132BAI31B03)

摘　　要：采用注射成型法制备了铜/低密度聚乙烯/甲基乙烯基硅橡胶(Cu/LDPE/MVQ)复合材料和低密度聚乙烯/甲基乙烯基硅橡胶(LDPE/MVQ)复合材料,采用差示扫描量热法(DSC)研究了复合材料的非等温结晶行为。结果表明,随着冷却速率的加快,复合材料的结晶度逐渐增大。铜颗粒在复合材料中作为异相成核点,同时阻碍着LDPE分子链的运动。LDPE/MVQ Composite was prepared by using injection molding method.Differential scanning calorimetry （DSC） was used to investigate the non-isothermal crystallization behavior of the composite.Micron copper particles were added into the LDPE/MVQ composite and the non-isothermal crystallization behavior of the Cu/LDPE/MVQ composite was investigated as a comparison.The results indicated that the crystallinity degree increased with the increase of the cooling rate.The copper particles dispersed in the composite acting as heterogeneous nucleation points for the crystallization of the composite and they hindered the movement of the molecule chains at the same time.

关 键 词：LDPE MVQ复合材料 CU LDPE MVQ复合材料 结晶性能 微米铜颗粒 

分 类 号：TB333[一般工业技术—材料科学与工程]