流变参数对顺序共注成型芯层熔体最大填充量的影响  

Effect of Rheological Parameters on Maximal Volume Fraction of Core Melt in Sequential Co-injection Molding

作　　者：周勇飞[1] 周国发[1] 郭吉林[1] 闫丽[1] 

机构地区：[1]南昌大学环境科学与工程学院,江西南昌330029

出　　处：《中国塑料》2006年第7期52-55,共4页China Plastics

基　　金：国家自然科学基金(20274016)

摘　　要：基于Hlele-shaw模型,采用有限元数值模拟技术,系统研究了壳层熔体流变指数和零切黏度对顺序共注成型芯层熔体最大填充量的影响规律,并基于流变学理论揭示了其影响机理,最终提出了顺序共注成型芯层熔体最大填充量与壳层熔体流变指数和零切黏度经验关系方程。Through a finite element numerical simulation, the effects of melt-flow index n and zeroshear viscosity on the maximal volume fraction of core melt in sequential co-injection were explored based on Hele-Shaw model. The affecting mechanism and an empirical equation relating the maximal volume fraction of core melt and rheological parameters were proposed.

关 键 词：顺序共注成型 数值模拟 流变参数 

分 类 号：TQ320.66[化学工程—合成树脂塑料工业]