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水性丙烯酸酯-改性氯化聚丙烯复合涂层材料的制备及性能研究

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第29卷第2期 2015年2月 中 国 塑料 PLA5汀ICS V01.29。No.2 Feb.,20 1 5 CHINA 水性丙烯酸酯/改性氯化聚丙烯复合涂层材料的制备及性能研究 谭建权1’2~,刘伟区1’弘,王红蕾1’2…,夏侯国论1’2…,郭彦娟L 3.中国科学院大学化学与化工学院,北京100049) 摘要:将丙烯酸(AA)、丙烯酸丁酯(BA)、甲基丙烯酸甲酯(MMA)进行溶液自由基聚合,得到水性丙烯酸酯共聚 物(wPA);同时采用丙烯酸(AA)、丙烯酸丁酯(BA)改性得到接枝改性氯化聚丙烯(MCPP);将二者进行复合制备复 合涂层材料。考察了wPA中AA用量(AA质量占wPA合成中单体总质量的百分数,下同)对wPA乳液及wPA/ MCPP复合乳液性能的影响,以及WPA与MCPP配比对乳液性能、涂层表面张力和附着力的影响。结果表明,AA 用量为12%时wPA与MCPP复合后乳液性能最佳;随着wPA用量增多,乳液粒径减小,涂层表面张力提高,附着 力稍有降低;WPA与MCPP摩尔比为3:7时,乳液粒径98 nm,表面张力47 mN/m,附着力为。级。 关键词:水性丙烯酸酯;氯化聚丙烯;复合;涂层;乳液 中图分类号:TQ325.7 文献标识码:B 文章编号:1001—9278(2015)02 0073 06 2, (1.中国科学院广州化学研究所,广东广州510650;2.中国科学院纤维素化学重点实验室,广东广州510650; Preparation and Properties of Waterborne Polyacrylate/Modified Chlorinated Polypropylene Composite Primer TAN Jianquanl,2…,LIU Weiqul,2*,WANG Hongleil’2~, XIAHOU Guolunl'2”,GUO Yanj uanl'2'3 (1.Guangzhou 1nstitute of Chemistry,Chinese Academy of Sciences,Guangzhou 510650,China; 2.Key I。aboratory of Cellulose and I,ignocellulosics Chemistry,Chinese Academy of Sciences,Guangzhou 510650,China; 3.Sch001 of Chemistry and Chemical Engineering,University of Chinese Academy of Sciences,Beijing 100049,China) Abstract:Waterborne polyacrylate(WPA)was butyl acrylate (BA), and methyl obtained by copolymerization of acrylic acid(AA), methacrylate (MMA) in solution. onto Modified chlorinated p01ypropylene(MCPP) was obtained by grafting AA and BA Combining (basen on chlorinated poIypropylene. content WPA and MCPP a compound coating was obtained.When the the property of AA was 12% the mass of WPA), on of emulsion was the optimal. The effects of ratio between WPA and MCPP investigated. the emulsion properties, surface tension, and adhesion were also The particle size of the colloid decreased,the surface tension of the coating increased, content the adhesion decreased slightly with increasing of WPA.WhenⅢ(wPA):Ⅲ(ML’PP)一3:7,the was grade O. particle size was 98 nm,surface tension was 47 Key mN/m,adhesion words:waterbome polyacrylate;chlorinated polypropylene;composite;primer;emulsion 低[1。4]。涂层法能有效提高胶黏剂等在PP上的附着 力。常用的涂层材料有丙烯酸酯类、氯化聚丙烯类 等[㈠。丙烯酸酯类聚合物容易水性化口一,具有环保、极 0前言 聚丙烯(PP)密度低,强度高,应用广泛。但PP表 面能低,胶黏剂、油墨等在PP上润湿困难,附着力 收稿日期:2014—10—08 粤港关键领域重点项目(2012A080107018) *联系人,1iuwq@gic.ac.cn 性较大、表面能较高、与大多数胶黏剂、涂料、油墨等黏 结力强等特点,但对非极性的PP附着力较差。氯化聚 丙烯(CPP)对聚烯烃薄膜具有优良的黏结力,但CPP 极性低,表面能低,一般只溶于毒性较大的烃类溶剂 (如苯、甲苯等)[7’12I,不符合环保要求。目前多以丙烯 万方数据



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