杂质粒子，有做过糊树脂,不知道糊树脂的干燥,在悬浮法中是用热风干燥粉体的,如果热风中含有杂质,也会影响PVC粉的质量的,尤其是杂质粒子数。
而约束区杂质粒子输运则比新经典的值大很多，是反常的。
In the confinement range the impurity diffusion coefficient is much higher than that estimated with new-classical theory.
杂质粒子与所用原材料、设备、工艺、聚合配方组分及氯乙烯单体中的铁化合物有关。
It was pointed that the impurity particles are relate to the raw material, equipment, process, polymerization formula and the iron compound content in vinyl chloride monomer.
通过分析聚氯乙烯树脂中杂质粒子产生的主要原因，提出了在采购、保管、生产、清理、分析等环节的解决措施。
The main reasons on impurity particles creation in PVC resin was analyzed. Some countermeasures, which can be taken in sector of purchase, storage, production, cleaning and analyzing, was put forward.
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