PET表面高附着力抗污UV硬化涂料的研制  

Development of high adhesion and stain resistance UV hardening coating for PET surface

作　　者：都佩华 王泽群 张文华 Du Peihua;Wang Zequn;Zhang Wenhua(Changzhou Dubo Polymer Co.,Ltd.,Changzhou 213000,Jiangsu,China;Chuzhou Dubo Polymer Co.,Ltd.,Chuzhou 239400,Anhui,China)

机构地区：[1]常州都铂高分子有限公司,江苏常州213000 [2]滁州都铂高分子有限公司,安徽滁州239400

出　　处：《中国胶粘剂》2022年第5期54-58,共5页China Adhesives

摘　　要：选用20份2官能聚氨酯丙烯酸酯、10份15官能聚氨酯丙烯酸酯平衡体系的强度及韧性,3份丙烯酸羟乙酯、12份丙烯酸异冰片酯和5份双季戊四醇六丙烯酸酯作为活性单体对涂层硬度和附着力进行辅助调节,30份乙酸乙酯、20份醋酸丁酯作为溶剂优化涂液施工性,1份流平剂BYK333优化耐污性,外加4%的硫醇PE1抗氧阻聚以优化涂层表面,制备了一种UV硬化涂料,并对涂料的附着力、硬度和耐污性等进行了研究。研究结果表明:该涂料可直接在PET表面涂布,不需要另外对PET做底涂处理;固化后的涂层有良好的附着力,百格测试为5B;同时具有较高的硬度,可达到3~4H;耐污性好,涂写测试20次以上;耐磨性好,钢丝绒磨800次以上。该涂料黏度低,需要的固化辐照能量低,便于施工,成膜表面爽滑平整。20 parts of 2-functional polyurethane acrylate and 10 parts of 15 functional polyurethane acrylate were selected to balance the strength and toughness of the system. 3 parts of hydroxyethyl acrylate,12 parts of isobornyl acrylate and 5 parts of dipentaerythritol hexaacrylate were used as active monomers to adjust the hardness and adhesion of the coating. 30 parts of ethyl acetate and 20 parts of butyl acetate were used as solvents to optimize the coating workability. 1 part of leveling agent BYK333 was used to optimize the stain resistance,a kind of UV hardening coating was prepared by adding 4% mercaptan PE1 for anti oxygen polymerization inhibition to optimize the coating surface. The adhesion,hardness and stain resistance of the coating were studied. The research results showed that the coating could be directly coated on the PET surface without additional primer treatment of PET. The cured coating had good adhesion,and the cross-cut test was 5B. At the same time,it had high hardness,which could reach 3-4H. It had good stain resistance,which the graffiti test reached more than 20 times. It had good wear resistance,with steel wool grinding for more than 800 times. The coating had low viscosity and low curing radiation energy,which was convenient for construction,and the film-forming surface was smooth and flat.

关 键 词：UV硬化涂料 附着力 硬度 耐污 耐磨 辐照能量 

分 类 号：TQ630.7[化学工程—精细化工]