聚苯乙烯挤出水发泡泡孔的均匀度  

The Uniformity of Bubbles of Extruded PS by Water Foaming Agent

作　　者：钱进[1] 纪贵升[1] 吴品弘[1] 赵良知[1] 郑乐见[1] 张泽葵[1] 

机构地区：[1]华南理工大学机械与汽车工程学院,广东广州510640

出　　处：《塑料》2011年第4期5-8,共4页Plastics

基　　金：广东省大学生创新实验项目(S1010561005)

摘　　要：实验采用水作为发泡剂,通过挤出发泡方法制备聚苯乙烯(PS)发泡塑料。提出水发泡制品泡孔均匀度表征公式,来描述泡孔大小的均匀度,并研究了口模温度、螺杆转速和水的质量含量3个重要因素对聚苯乙烯水发泡制品性能的影响。实验结果表明:当水的质量含量为11.02%,口模温度120℃,螺杆转速25 r/min时,可以制得泡孔均匀度高、表面光滑、表观密度低的聚苯乙烯水发泡制品。With water as physical blowing agent, Polystyrene （PS） was extrusion foamed. The formula which to describe the uniformity of bubbles was put forward, the effects of three key factors ： die temperature, screw rotation speed and water mass content on the foaming property of PS product were also studied. The results showed that when mass content of water was 11.02 % die temperature was 120 ℃ ,the screw rotation speed was 25 r/min,we could get PS products with high uniformity of bubbles, smooth surfaces and small apparent density.

关 键 词：水发泡剂 泡孔均匀度 挤出 聚苯乙烯 物理发泡 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]