两步法合成大粒径丁苯胶乳  

Study on Synthesizing Large Particle Butadiene- styrene Latex by Two- step Polymerization

作　　者：林润雄[1] 宁利红[1] 段良福[1] 董兰国[1] 

机构地区：[1]教育部橡塑材料与工程重点实验室,青岛科技大学青岛266042

出　　处：《塑料助剂》2005年第6期17-18,共2页Plastics Additives

摘　　要：研究了聚甲基丙烯酸甲酯(MMA)对丁苯(BS)胶乳的附聚作用以增大丁苯胶乳粒径;探讨了无机盐、体系pH值及体系中MMA胶乳与BS胶乳的固含量比(R值)对附聚后丁苯胶乳的粒径及稳定性的影响。结果表明:适当添加无机盐可以稳定胶乳体系,最佳用量(质量分数)为0.1%￣0.2%;适当增大体系pH值,可增大胶乳粒径;在附聚过程中,当R值在两个附聚峰附近时,可增大丁苯胶乳的粒径。In this paper, the agglomeration of butadiene-styrene latex being caused by polymethyl methacrylate latex was studied. The effects of inorganic salt, pH value and the ratio of solid content of MMA latex to BS latex （R value） on the particle size and stability of butadien-styrene latex after agglomeration were discassed.

关 键 词：附聚 丁苯胶乳 粒径 聚甲基丙烯酸甲酯 

分 类 号：TQ331[化学工程—橡胶工业]