HQEE改性水性聚氨酯-聚丙烯酸酯的制备及应用  

Synthesis and application of polyurethane-polyacrylate emulsion modified with HQEE

作　　者：苗宗成[1] 张永明[1] 赖小娟 杨振福 MIAO Zong-cheng;ZHANG Yong-ming;LAI Xiao-juan;YANG Zhen-fu(College of Science,Xijing University,Xi’an 710023,China;Changqing Petroleum Engineering Supervision Co.,Chuanqing Drilling Engineering Company Limited,CNPC,Xi’an 710018,China)

机构地区：[1]西京学院理学院,陕西西安710023 [2]中国石油集团川庆钻探工程有限公司长庆石油工程监督公司,陕西西安710018

出　　处：《应用化工》2019年第3期541-544,共4页Applied Chemical Industry

基　　金：国家自然科学基金(51103081);陕西省青年科技新星项目(2018KJXX-023);陕西省教育厅重点实验室项目(17JS012);西安市科技计划项目(2017068CG/RC031(SXKD005))

摘　　要：采用耐高温聚酯多元醇、脂肪族二异氰酸酯、对苯二酚双(β-乙基)醚(HQEE)为主要原料,合成了具有高稳定性、无VOC的新型水性聚氨酯-聚丙烯酸酯乳液(HPUA),采用1,4-丁二醇(BDO)扩链,合成了聚氨酯-聚丙烯酸酯乳液(BPUA),考察乳液配制的水性胶粘剂在铝箔/PVC上的粘结应用性能。结果表明,HPUA和BPUA乳液的稳定性均表现优良。和BPUA相比,HPUA的各阶段热分解温度(T_(20)、T_(30)、T_(50)、T_(max1)和T_(max2))得到明显提高。该复合乳液配制的水性胶粘剂在铝箔/PVC之间的T-剥离强度达到15.3 N;易氧化物等指标符合医药包装标准,该HQEE改性水性聚氨酯胶粘剂适用于医药铝塑包装。The novel waterborne polyurethane-polyacrylate (HPUA) emulsion with high stability and no VOC was prepared with polyester polyol,aliphatic diisocyanate hydroquinone bis(β-ethyl) ether (HQEE) as main raw materials,and chain extender.And waterborne polyurethane-polyacrylate (BPUA) emulsion was prepared with the same method with 1,4-butanediol (BDO) as chain extender.The application properties of waterborne adhesive prepared from the emulsion on aluminum foil and PVC was tested.The results showed that both the HPUA and BPUA emulsions have good stability.The heat resistance of the HPUA films modified by HQEE was better than that of the BPUA films.The decomposition temperature ( T 20 ,T 30 ,T 50 ,T max1 and T max2 ) of HPUA was improved by the HQEE modification.When the aluminum foil and PVC was bonded with waterborne adhesive prepared from the emulsion,the T-peel strength can reach 15.3 N,the content of readily oxidizable substance of the emulsions meet the standards for pharmaceutical packaging,and the waterborne adhesive modified with HQEE is suitable for pharmaceutical packaging.

关 键 词：水性聚氨酯 乳液 胶膜 扩链剂 改性 医药包装 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]