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开口爽滑母粒生产线SM63PLUS
Jan 31, 2024
00:25
1. 开口爽滑母粒生产市面上最常用的方法使用混合机将几种原料预混合，再加入双螺杆挤出机中。常常会出现很多问题。1.爽滑剂的熔点通常比载体塑料低很多，在挤出机喂料口爽滑剂会出现融化的情况，将物料粘在喂料口，影响喂料和生产效率。2.爽滑剂分子量小熔点低，在挤出机中会早于塑料融化成流动性很好液体，会在挤出机中反流，某一时刻会被螺杆至机头，导致液体含量超标，出现断条，并且最终的颗粒中爽滑剂含量不稳定。3.爽滑剂的含量高时，在挤出机前段剪切区域会出现打滑现象，导致剪切力不足，塑料颗粒不融化。4.塑料分子量大，爽滑剂分子量小，两者相容分布为均一体的难度大。
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