以苯乙烯（St）、丙烯酸丁酯（BA）、甲基丙烯酸甲酯（MMA）、丙烯酸（AA）、丙烯酸羟乙酯（HEA）为原料,通过乳液聚合法合成固含量约为40%的轻度交联苯丙胶乳纸张涂布剂。考察了不同单体用量对乳胶膜机械性能的影响。结果表明,当m（MMA）=11.5%,m（AA）=6.9%,m（HEA）=11.5%,m（St）/m（BA）=1∶2时,乳胶膜呈现良好的机械性能,乳液粒子尺寸较小且分布窄,平均粒径为128.9nm;且聚合物具有良好的耐热性。
Self-crosslinking styrene-acrylic emulsion coating agent for paper was prepared by emulsion polymerization with styrene（St）,butyl acrylate（BA）,methyl methacrylate（MMA）,acrylic acid（AA）,hydroxyethyl acrylate（HEA） as raw materials,and the solid content of the emulsion was up to 40%.Effects of monomers concentration on the mechanical properties of film were investigated.It was found that the emulsion film was endowed with excellent mechanical property and thermal stability when m（MMA）=11.5%,m（AA）=6.9%,m（HEA）=11.5% and m（St）/m（BA）=1∶2.And the average particle size of the emulsion was 128.9nm with narrow particle size distribution.
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