【摘要】 通过微乳化分散技术使纳米CaCO3 实现了良好分散 ,用于氯乙烯原位悬浮聚合 ,制得性能优异的纳米CaCO3 原位聚合PVC树脂。考察了纳米CaCO3 含量对氯乙烯原位聚合成粒过程的影响 ,建立了纳米CaCO3 含量、反应器搅拌强度以及聚合配方中分散剂含量与PVC颗粒平均粒径的数学关联式。以上研究结果已应用于 6万t/a工业装置 ,文中还列举了 30m3 以上大釜的纳米CaCO3 原位聚合PVC生产实例数据。更多还原

【Abstract】 Nano-CaCO 3 in-situ polymerization PVC with excellent properties was manufactured by the in-situ polymerization of vinyl chloride with nano-CaCO 3 which was well dispered by the microemulsifying dispersion techniques.Influences of nano-CaCO 3 content on the granulation process during the in-situ polymerization of vinyl chloride were investigated,and a correlation equation of nano-CaCO 3 content,the stir intensity in reactor and the dispersing agent content in the polymerization formula with the average size of PVC particle was established.The above techniques had been applied to the 60 kt/a commercial plant.In this paper,the practical production data abtained from the production process of nano-CaCO 3 in-situ polymerization PVC in ≥30 m 3 polymerizers were given.更多还原