PET挤出发泡成型的工艺参数研究  

Research on Technological Parameters of PET Extrusion Foaming

作　　者：陈志兵[1] 何继敏[1] 

机构地区：[1]北京化工大学塑料机械及塑料工程研究所,北京100029

出　　处：《塑料科技》2011年第10期58-61,共4页Plastics Science and Technology

摘　　要：采用挤出化学发泡法进行聚对苯二甲酸乙二醇(酯PET)的发泡成型,得到了表观密度较低、泡孔细密均匀的PET发泡材料。研究了单螺杆挤出机的机筒温度、机头温度和螺杆转速等工艺参数对PET发泡效果的影响。结果表明:实验范围内,PET挤出发泡成型的最佳工艺参数为机筒温度265℃,机头温度220℃,螺杆转速30 r/min。PET foaming material with low apparent density and uniform close cells was prepared by chemicalextrusion foaming.The effects of barrel temperature,die temperature and screw rotation speed onfoaming result of PET were studied.The results show that the optimum technological parameters ofPET extrusion foaming are barrel temperature 265 ℃,die temperature 220 ℃,screw rotation speed30 r/min respectively as far as this experiment is concerned.

关 键 词：聚对苯二甲酸乙二醇酯 挤出发泡 工艺参数 

分 类 号：TQ328.06[化学工程—合成树脂塑料工业]