二维口模气辅共挤的有限元分析及其对挤出胀大的影响  

The Numerical Simulation of Polymer Gas-Assisted Coextrusion and Its Influence to Die-Swell

作　　者：尹智龙[1] 邓小珍[2] 黄兴元[3] 

机构地区：[1]江西蓝天学院机电系,江西南昌330029 [2]江西蓝天学院电子与制造系,江西南昌330029 [3]南昌大学机电工程学院聚合物加工研究室,江西南昌330031

出　　处：《上海塑料》2009年第1期1-4,共4页Shanghai Plastics

基　　金：国家自然科学基金资助(20664002)

摘　　要：气辅共挤成型是一种新型的聚合物挤出成型技术。其实质是将气辅挤出技术应用于共挤成型技术,发挥气辅挤出和共挤成型等优点。对气辅共挤进行二维建模,并对其进行有限元分析,结果表明气辅共挤较传统共挤有部分消除挤出胀大的作用。Gas-assisted co-extrusion molding is a new multiphase-polymer molding technique. The basic mechanism is that the gas-assisted extrusion is applied to the polymer co-extrusion, which will exert the advantages of both gas-assisted extrusion and co-extrusion. The influence of rheological characters of polymer and the parameters of processing have been investigated with respect to the die-swell.

关 键 词：气体挤出成型 共挤出成型 气辅共挤成型 挤出胀大 

分 类 号：TQ320.663[化学工程—合成树脂塑料工业]