Plastic Shrinkage Rate Chart Plastic Shrinkage rate is a volume contraction rate of polymers from the melt state and the cooled condition that will determine the molding parts dimension and accuracy, it is expressed in percent. Semi-crystalline polymers (e.g: PBT or PP) always show a higher shrinkage than amorphous polymers (e.g: PS or PC) because when cooled down semi-crystalline polymers will see part of their macromolecular chains re-arranged to form crystallite, that is a well-organized structure, [...]

Plastic material shrinkage and density | Plastic Chinese-English Plastic material shrinkage and density; Common Plastic material Resin Name Chinese-English Bilingual List including plastic Chinese name, English short name, plastic density and shrinkage rates. 常用塑料中英文名对照表 Common Plastic Resin Name Chinese-English Bilingual List 朔胶类别 categories 简称 Short Name 中文学名 Chinese Name 比重 Density 收缩录 Shrinkage 硬胶类 PS 聚苯乙烯 1.07 1.005 HIPS 高冲击聚苯乙烯 1.06 1.004 ABS 丙烯睛一丁2烯一苯乙烯 105 1.006 SAN 聚苯烯丙烯睛共聚物 1.09 1.002 软胶类 LDPE 低密聚乙烯 0.92 1.015-1.02 HDPE [...]