PS-b-PDMS-b-PS三嵌段共聚物改性环氧树脂的研究  

Study on Epoxy Resin Modified by PS-b-PDMS-b-PS Triblock Copolymer

作　　者：王月欣[1] 李艳星[1] 张倩[1] 张俊然[1] 王辰伟[1] 

机构地区：[1]河北工业大学高分子科学与工程研究所,天津300130

出　　处：《塑料工业》2009年第4期29-31,34,共4页China Plastics Industry

基　　金：河北省自然科学基金资助项目(E2008000057)

摘　　要：将聚苯乙烯-b-聚二甲基硅氧烷-b-聚苯乙烯三嵌段共聚物(PS-b-PDMS-b-PS)与环氧树脂共混制备出一种疏水性环氧涂层。研究了PS-b-PDMS-b-PS的添加量对涂膜的表面性能、柔韧性、耐化学介质稳定性等性能的影响。研究表明:加入少量PS-b-PDMS-b-PS就能显著改善涂膜的表面性能,赋予涂膜疏水性,当PS-b-PDMS-b-PS添加量为10%(质量分数,下同)时,涂膜比纯的环氧树脂固化涂膜接触角提高了39.8°。随着PS-b-PDMS-b-PS添加量的增加,涂膜的柔韧性也得到明显改善,且涂膜仍具有良好的耐化学介质稳定性。A hydrophobic epoxy coating was prepared by blending of PS-b-PDMS-b-PS triblock copolymer and epoxy resin. The effect of different contents of PS-b-PDMS-b-PS on the hydrophobic properties, flexibilities and chemical resistance were studied. The results indicated that the hydrophobic properties were improved dramatically with a small amount of PS-b-PDMS-b-PS added. The contact angle of the modified epoxy coating with 10% PS-b-PDMS-b-PS content was increased by 39.8°, compared to the contact angle of the unmodified coating. And also found that the flexibilities of the epoxy coatings were improved remarkably with the increase of PS-b-PDMS-b-PS content; the epoxy coatings showed good chemical resistance.

关 键 词：聚苯乙烯-b-聚二甲基硅氧烷-b-聚苯乙烯 环氧树脂 接触角 疏水性 柔韧性 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业] O634.41[理学—高分子化学]