塑胶用水性压敏胶的研制  

Development of Water-based Pressure Sensitive Adhesives for Plastics

作　　者：吴海波 刘珠 肖定书 刘国聪 卢明 强娜 雷生山 易玥 赖惠英 张祥龙 Wu Haibo;Liu Zhu;Xiao Dingshu;Liu Guocong;Lu Ming;Qiang Na;Lei Shengshan;Yi Yue;Lai Huiying;Zhang Xianglong(Advanced Materials Surface Interface Technology Development Center of Guangdong Province,Guangdong Provincial Education Department Development Team of Advanced Material Coating and Surface Interface Technology,Huizhou Engineering Technology Research Center of Advanced Coating Materials,Dayawan Chemical Engineering Research Institute of Huizhou University,School of Chemistry and Materials Engineering,Huizhou University,Huizhou 516007;Research Institute of Sun Yat-sen University in Huizhou,Huizhou 516081;Guangdong Honeycomb Nano Materials Co.,Ltd.,Huizhou 516029,China)

机构地区：[1]惠州学院化学与材料工程学院,惠州学院大亚湾化工研究院,广东省先进材料表界面工程技术开发中心,广东省教育厅先进材料涂层与表界面技术开发团队,惠州市先进涂层材料工程技术研究中心,广东惠州516007 [2]中山大学惠州研究院,广东惠州516081 [3]广东省蜂巢纳米材料有限公司,广东惠州516029

出　　处：《广东化工》2021年第24期13-16,37,共5页Guangdong Chemical Industry

基　　金：国家自然科学基金(21604014,51162026);惠州市科技计划(2017X0202012);大亚湾科技计划项目(2020020001);惠州学院教授、博士启动项目(2020JB051)。

摘　　要：以甲基丙烯酸甲酯(MMA)和丙烯酸丁酯(BA)为软/硬单体,壬基酚聚氧乙烯醚硫酸铵盐(CO-436)作为阴离子型环保乳化剂,改性磷酸酯单体(158)为交联剂,十二硫醇或3-巯基丙酸丁酯为分子量调节剂,通过预乳化-半连续乳液聚合法制备出塑胶用高性能水性压敏胶(PSA)。系统研究了单体比例、改性交联剂和分子量调节剂的种类和含量对水性压敏胶的耐水性、耐湿热老化及粘接性能的影响。通过红外光谱、差示扫描量热仪和热失重分析仪对固化前后压敏胶样品进行了结构和性能表征。最后,对涂布后胶带的初黏力和持黏力进行测试表征。结果表明,当BA与MMA质量比为6.67/1,158加入量为2.5%且3-巯基丙酸丁酯为0.15%时,制备得到的水性压敏胶具有较低的粘度、优异的初粘力、持粘力及耐热老化性能。Plastic used high-performance water-based pressure sensitive adhesives(PSA) was prepared by pre-emulsification semi-continuous emulsion polymerization method with methyl methacrylate(MMA) and butyl acrylate(BA) as soft/hard monomers, nononyphenol polyvinyl ether ammonium sulfate(CO-436) as an anionic environment-friendly emulsifier, modified phosphate monomer(158) as a crosslinker, and dodithiol or 3-butyl mercaptopropionate as molecular weight regulators. The effects of the types and content of monomer mass ratio, modified crosslinkers and molecular weight modulators on the water resistance, moisture-heat aging and bonding properties of water-based pressure-sensitive adhesives were systematically studied. The structure and properties of water-based pressure-sensitive adhesives before and after curing were characterized by infrared spectrum, differential scanning calorimeter and heat-weight analyzer. Finally, the initial and holding viscosity of the coated samples was tested and characterized. The results indicated that the prepared water-based pressure sensitive had low viscosity, excellent primary viscosity, holding viscosity and thermo-stability when the mass ratio of BA and MMA was 6.67/1, mass fraction of 158 and butyl 3-mercaptopropionate was 2.5 % and 0.15 %, respectively.

关 键 词：塑胶 水性压敏胶 预乳化 半连续乳液聚合 乳液 

分 类 号：TQ436.3[化学工程]