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使用2,2′-偶氮二异丁基脒二盐酸盐自由基引发剂,改变甲基丙烯酰氧乙基十六烷基二甲基溴化铵阳离子功能单体的量与苯乙烯进行乳液聚合获得不同粒径的阳离子乳胶粒,使用十二烷基硫酸钠为乳化剂和过硫酸钾为引发剂制备阴离子聚合物乳胶粒.采用基于静电相互作用的异凝聚法将以上2种带有相反电荷的乳胶粒组装,获得了表面粗糙程度不同的复合微粒.对异凝聚过程中复合液透光率和微粒大小及分布进行跟踪测试,并用透射电子显微镜表征了阳离子微粒、阴离子微粒以及复合微粒的形态和大小.结果表明,在一定范围内可以通过控制阴离子乳胶粒与阳离子乳胶粒的复合比例改变单个复合微粒表面阳离子小微粒的数目.
Using 2,2’-azobisisobutyramidine dihydrochloride free radical initiator, the amount of methacryloxyethyl cetyl dimethyl ammonium bromide cationic functional monomer was varied with the amount of styrene Emulsion polymerization to obtain cationic latex particles of different particle size, the use of sodium dodecyl sulfate as an emulsifier and potassium persulfate initiator for the preparation of anionic polymer latex particles using electrostatic interaction based heterocoagulation method the above two with The oppositely charged latex particles were assembled to obtain the composite particles with different surface roughness.The light transmittance and the size and distribution of the composite particles in the heterogeneous aggregation process were tracked and examined by transmission electron microscopy and the results showed that the cationic particles, anionic particles and composite particles The results show that the number of cationic microparticles on the surface of a single composite particle can be changed by controlling the composite ratio of anionic latex particles and cationic latex particles within a certain range.