熔体注射温度对聚合物气辅共注成型过程影响的试验研究  

Influence of Melt Injection Temperature on Polymer Gas Assisted Co-injection Molding Process

作　　者：周文彦[1] 周国发[1] 

机构地区：[1]南昌大学环境科学与工程学院,江西南昌330031

出　　处：《轻工机械》2008年第6期19-22,共4页Light Industry Machinery

基　　金：国家自然科学基金资助项目(20274016);江西省教育厅科技攻关项目(s00123)

摘　　要：文章对先进的气辅共注成型工艺进行了实验研究,系统研究了熔体注射温度对气辅共注成型过程的气体和芯层熔体穿透形貌的影响规律。研究结果表明,随着芯层熔体注射温度升高,芯层熔体和气体的穿透深度减小,而穿透宽度和穿透厚度则增大,易形成短射。而随着壳层熔体注射温度升高,气体和芯层熔体的穿透深度增大,穿透厚度也增大,但穿透宽度减小。提高壳层熔体注射温度有利于成型出材料分布均匀的多层复合中空塑料制品。The experimental researches of advanced gas-assisted co-injection molding （short for GACIM）were implemented. The influence rules of polymer melt injection temperature on the gas and core melt penetrating pattern of GACIM were studied. The results of research showed, with increasing of the injection temperature of core melt, the core melt and gas penetrating depth reduce, and the gas penetrating width and thickness increase, which results in short shot easily. With increasing of the injection temperature of skin melt, the core melt and gas penetrating depth increase, but the gas penetrating width and thickness reduce. The increasing of the injecting temperature of skin melt benefits molding the hallow multilayer composite plastic goods with uniform

关 键 词：气辅共注成型 过程参数 实验研究 

分 类 号：TQ320.66[化学工程—合成树脂塑料工业]