细乳液聚合法TiO_2/PMMA纳米复合粒子的制备及其性能  

Preparation of Nanoscale TiO_2 /PMMA Composite Particles by Miniemulsion Polymerization

作　　者：白福顺[1] 杜长森 田安丽[1] 梅成国 付少海[1] 

机构地区：[1]江南大学生态纺织教育部重点实验室,江苏无锡214122 [2]苏州世名科技股份有限公司,江苏苏州215337

出　　处：《精细化工》2014年第1期103-109,共7页Fine Chemicals

基　　金：江苏省产学研前瞻性联合创新基金(BY2012050);江苏省自然科学基金(BK2012212);江苏省科技支撑计划(BE2012863)~~

摘　　要：采用细乳液聚合法制备了二氧化钛/聚甲基丙烯酸甲酯(TiO2/PMMA)纳米复合粒子,研究了引发剂、助乳化剂、乳化剂、单体结构对TiO2/PMMA纳米复合粒子性能的影响。结果表明,十六烷(HD)比十二醇和十六醇更能有效抑制甲基丙烯酸甲酯(MMA)液滴在水相中的Ostwald熟化效应,当MMA占TiO2质量的60%,HD占单体质量的6%,可聚合乳化剂1-烯丙氧基-3-(4-壬基苯酚)-2-丙醇聚氧乙烯(10)醚硫酸铵(DNS-86)占整个体系质量的2%时,制备TiO2/PMMA纳米复合粒子分散体的粒径为185 nm,此时TiO2/PMMA纳米复合粒子与细乳液粒径差距较小;采用TiO2/PMMA纳米复合粒子制备喷墨印花用白色涂料墨水的稳定性和遮盖力明显优于同等条件下TiO2所制备的涂料墨水。The nanoscale TiO2/PMMA composite particle was prepared via miniemulsion polymerization. The influences of co-emulsifier, emulsifier, monomer and initiator on the properties of the dispersion were investigated. The results show that hexadecane （HD） was more effective to inhibit the Ostwald effect than cetyl alcohol （CA） and dodecanol （LA）. When the mass ratio of MMA and TiO2,HD and MMA, and DNS -86 based on the whole dispersion, was 60%, 6% and 2%, respectively,the particle size of nanoseale TiOJPMMA composite particle was 185 nm, which was similar to that of pre-emulsion under these conditions. The white ink prepared from nanoscale TiO2/ PMMA composite showed higher hiding power and stability than that prepared from nanoseale TiO2.

关 键 词：TIO2 PMMA纳米复合粒子 细乳液聚合 白色涂料墨水 喷墨印花 特种染料与颜料 

分 类 号：TS194.21[轻工技术与工程—纺织化学与染整工程]