潮湿表面粘贴用压敏胶的制备及性能研究  

Preparation and properties of pressure sensitive adhesive for wet surface

作　　者：吴季鸿 钱军[1] 石一峰 WU Ji-hong;QIAN Jun;SHI Yi-feng(School of Materials Science and Engineering,East China University of Science and Technology,Shanghai 200237,China;Shanghai Hongdingfang Technology Co.,Ltd.,Shanghai 200237,China)

机构地区：[1]华东理工大学材料科学与工程学院,上海200237 [2]上海宏顶房科技有限公司,上海200237

出　　处：《现代化工》2025年第4期224-228,233,共6页Modern Chemical Industry

摘　　要：为改善压敏胶的防水粘附性能,采用甲基丙烯酰氯(MAC)与左旋多巴(L-DOPA)反应制备含有儿茶酚基团的可聚合单体DMAA,将其与丙烯酸异辛酯和丙烯酸共聚得到丙烯酸酯压敏胶。通过改变压敏胶在水中的浸泡时间和粘贴时间,研究了压敏胶在潮湿表面的粘贴性能,并与市售样品进行对比。结果表明,儿茶酚单体的引入明显提高压敏胶在潮湿表面的粘附能力和粘贴稳定性,并且胶膜与基材之间的粘贴时间越长粘附力越强,儿茶酚单体质量分数为2%的压敏胶经过24 h水中浸泡并在水下粘贴24 h后,剥离强度可达30 N/25 mm以上,性能普遍高于市售压敏胶样品。In order to improve the waterproof adhesion property of pressure-sensitive adhesive,DMAA,a polymerizable monomer containing catechol group,is prepared through the reaction between methacryloyl chloride and levodopa.DMAA is then co-polymerized with 2-ethylhexyl acrylate and acrylic acid to obtain acrylate pressure-sensitive adhesive.Through changing the soaking time and adhesive time of the prepared pressure-sensitive adhesive in water,its adhesive performance on wet surface is studied,and compared with the commercial samples.Study results show that the addition of catechol monomer can significantly improve the adhesive ability and adhesive stability of the pressure-sensitive adhesive on wet surface.The longer the adhesive time between the adhesive film and the substrate,the stronger the adhesive force.The peel strength of the pressure-sensitive adhesive with a catechol monomer content of 2%can reach 30N/25 mm or more after it has been soaked in water for 24 h and stuck in water for 24 h.The performance is generally higher than that of commercial pressure-sensitive adhesive samples.

关 键 词：左旋多巴 儿茶酚 潮湿表面 压敏胶 

分 类 号：TQ430[化学工程]