摘要： 采用高压乳化法,以氧化聚乙烯(OPE)蜡为原料用单一乳化剂制备了淡黄色、半透明的非离子型OPE蜡微乳液。考察了非离子型乳化剂的用量和乳化压力对OPE蜡微乳液的乳胶粒子粒径和粒径分布的影响。结果表明:增加乳化剂用量或增加乳化压力均有利于降低水的表面张力,形成粒径更小的OPE乳胶粒子。在乳化剂用量为OPE蜡的25%、助剂用量为乳化剂的5%,乳化时压力为(8.5±0.5)MPa时,可获得性能良好的非离子型OPE微乳液。
关键词:
氧化聚乙烯蜡,
非离子型乳化剂,
微乳液
Abstract: A pale-yellow and translucent nonionic wax microemulsion of oxidized polyethylene (OPE), which is derived from Honeywell, was prepared by high pressure emulsification methods in the presence of a single nonionic emulsifier. The effect of concentration of nonionic emulsifier and emulsification pressure on the latex particle sizes and size distribution of wax microemulsion were systematically investigated. The results indicated that increasing emulsifier concentration or emulsification pressure could effectively reduce surface tension, and decrease the size of OPE latex particles. Nonionic OPE wax microemulsion with excellent property could be obtained at 25% emulsifier relative to OPE wax, 5% additives of the emulsifier, and emulsification pressure(8.5+0.5)MPa.
Key words:
oxidized polyethylene wax,
nonionic emulsifier,
microemulsion
刘清泉, 周仕祥, 杨 震, 瞿作明, 杨 萍, 周建华, 高敬民. 以单一非离子型乳化剂制备氧化聚乙烯蜡微乳液[J]. 涂料工业, 2012, 42(11): 43-45.
Liu Qingquan, Zhou Shixiang, Yang Zheng, Qiu Zuoming, Yang Ping, Zhou Jianhua, Gao Jinmin. Preparation of Oxidized Polyethylene Wax Microemulsion with a Single Nonionic Emulsifier[J]. Paint & Coatings Industry, 2012, 42(11): 43-45.