PET/MFMB结晶行为、形态结构及退火处理收缩率的研究  

STUDY ON THE CRYSTALLIZATION BEHAVIOR, MORPHOLOGICAL STRUCTURE AND ANNEALING SHRINKAGE RATE OF PET/MFMB COMPOSITE

作　　者：陈曼椒[1] 王经武[1] 宫瑾[1] 吴文强[1] 

机构地区：[1]郑州大学材料工程学院,450052

出　　处：《工程塑料应用》2002年第1期5-8,共4页Engineering Plastics Application

摘　　要：利用DSC、偏光显微镜(PLM)等方法研究了PET/MFMB的逐渐降温结晶行为、形态结构和制品退火处理收缩率。结果表明,PET/MFMB中PET、PP的结晶起始温度(T_c′)、结晶温度(T_c)均比纯PET、纯PP的高,PET的结晶速率也比纯PET的高;PET/MFMB中PET为连续相,MFMB为分散相,配比为78/22的复合材料中MFMB呈颗粒状相态,PET、PP晶体尺寸细小;低模温注射成型的PET/MFMB制品退火处理收缩率比纯PET制品的小得多。The crystallization behavior, morphological structure and annealing shrinkage rate of PET/MFMB composite were investigated by DSC and PLM. Results indicated that compared with the pure PET and PP, the PET and PP in the composite showed a higher crystallization initial temperature (Tc') and a higher crystallization temperature ( Tc) , the total crystallization rate of PET was higher. For the composite with PET/MFMB=78/22(PET as continuous phase. MFMB as dispersion phase) , MFMB displayed the particle shape states of phase, PET and PP displayed an fine crystallite distribution. A much lower annealing shrinkage rate was found for all the PET/MFMB products molded by injection at low mold temperature than those of pure PET.

关 键 词：PET MFMB 结晶行为 形态结构 退火处理 收缩率 研究 聚对苯二甲酸乙二酯 多功能母料 复合材料 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业] TQ334.9