卷材耐指纹膜层间黏连问题的分析与研究  

Analysis and Research of Adhesion Problem of Fingerprint Resistant Coating on Coil

作　　者：宋明娟 SONG Ming-juan(Shanghai Chemetall Chemicals Co.,Ltd.,Shanghai 201315,China)

机构地区：[1]上海凯密特尔化学品有限公司,上海201315

出　　处：《材料保护》2022年第4期116-122,166,共8页Materials Protection

摘　　要：选用热塑性丙烯酸树脂为主成膜物质的卷材耐指纹液,在固化成膜后容易出现黏连。为解决该问题,通过冷拼不同硬度的聚合物调整耐指纹膜层的硬度,以及通过筛选成膜助剂来调整耐指纹膜的固化程度,对耐指纹膜层的抗黏性能进行了表征。结果表明:在耐指纹液产品中拼入高硬度聚合物后,耐指纹涂层硬度提升,抗黏性明显改善,可自然剥离,无剥离声音,板面无损伤;选用亲水性、中速至慢速蒸发、半挥发期短、分配系数大的醇醚成膜助剂,可在极短固化时间内使耐指纹膜层的固化程度提升,抗黏性得到改善,轻微拨动钢板即可分离,无剥离声音,板面无损伤。The coil fingerprint resistant liquid used thermoplastic acrylic resin as the main film-forming substance,which was prone to adhesion after curing into the film.In order to solve this problem,the hardness of fingerprint resistant coating was adjusted by cold assembling polymers with different hardness,and the curing degree of fingerprint resistant coating was adjusted by selecting the coalescent agents.Then,the anti-adhesion performance of the fingerprint resistant coating was characterized.Results showed that the hardness of the fingerprint resistant coating was increased after the high-hardness polymer was incorporated into the fingerprint resistant liquid product,and the anti-adhesion property was significantly improved.The coil could be peeled off naturally,without peeling sound and no damage on the panel surface.Selecting alcohol ether coalescent aids with hydrophilicity,medium speed to slow evaporation,short semi volatilization period and large partition coefficient,which could increase the curing degree of the fingerprint resistant coating in a very short curing time.And the anti-adhesive property was therefore improved.The coil could be peeled off by slight pulling force,without peeling sound and no damage on the panel surface.

关 键 词：热塑性丙烯酸树脂 黏连 硬度 成膜助剂 固化程度 

分 类 号：TQ322.42[化学工程—合成树脂塑料工业]