第44卷第9期 2014年9月
涂料工业
PAINT & COATINGS INDUSTRY
木器漆用丙烯酸酯乳液抗回黏性的研究
叶仙华，李国梁，乔永洛，申亮”
（江西科技师范大学江西省有机功能分子研究所，南昌330013）
Vol.44No.9 Sep.2014
摘要：以甲基丙烯酸甲酯（MMA）、丙烯酸丁酯（BA）为主单体，分别以乙烯基三甲氧基硅烷（A-171）、双丙酮丙烯酰胺-已二酰肼（DAAM-ADH）和三羟甲基丙烷三丙烯酸酯（TMPTA）为交联单体，通过乳胶粒子结构设计，利用乳液聚合法合成了一系列自交联型丙烯酸酯乳液，采用热压法研究了各种交联单体对涂膜抗回黏性的影响。结果表明：A-171和DAAM-ADH交联体系对涂膜抗回黏性具有较好的帮助，且DAAM-ADH交联体系对涂膜硬度提高明显，TMPTA对抗回黏性提高最弱。将3种交联体同时引人到树脂体系中，所制备的树脂具有较好的抗回黏性，同时具有低的MFT和高的T，硬度达到2H.可以很好地应用于水性木器清面漆中。
关键词：抗回黏性；乳液聚合；自交联；核壳结构
中图分类号：TO635.3
文献标识码：A
文章编号：0253-4312(2014)09-0011-05
StudyonBlockResistance of AcrylicEmulsionforWoodCoatings
Ye Xianhua,Li Guoliang,Qiao Yongluo,Shen Liang(Research Institute of Organic Functional Molecule,Jiangxi Science & TechnologyNormal University,Nanchang330013,China)
Abstract:A series of self-crosslinking acrylic emulsion were synthesized from MMA and BA as main monomers and silicone A-171, DAAM-ADH and TMPTA as cross-linking mono-mers, of which the latex particle structure was designed by emulsion polymerization method. The hot pressing method was employed to study the effects of three cross-linking monomers on block resistance of latex film. The results showed that the block resistance was improved signif icantly when A-171 and DAAM-ADH be used and the effect of TMPTA on block resistance was the weakest. Furthermore, the film hardness was raised obviously via the DAAM-ADH system.Three cross-linking monomers were incorporated into the resin system to form modified resins showing good block resistance, low MFT, high T, and high hardness 2H, applicable to waterbornewoodcoatings.
Key Words: block resistance; emulsion polymerization; self - crosslinking; core-shell structure
随着全球环保意识的增强，环保型涂料是未来涂料产业发展的主要方向，其中丙烯酸树脂具有优异的光泽、耐候性、化学稳定性及优异的施工性能，单体原
*通信联系人
料丰富、合成工艺简单，是制备高性能涂料的常用树脂，其中自交联丙烯酸树脂乳液以水作为溶剂，所制备的涂料常温可以施工，且性能可调，是环保型涂料
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