The main causes of impurities in PVC resin were explored.Targeted control measures were proposed for impurities from raw materials,polymerization process,stripping process,and drying process.After the implementation of control measures,the number of impurity particles in PVC SG5 res-in was decreased significantly,product quality and market competitiveness were improved.
关键词
聚氯乙烯/杂质粒子数/原料/聚合/汽提/干燥/管控措施
Key words
polyvinyl chloride/number of impurity particles/raw materials/polymerization/stripping/drying/control measures