摘要
采用工业聚己二酸对苯二甲酸丁二酯(PBAT)树脂,通过恒温恒湿环境调控其分子量基础上,引入不同结构的松香类增黏树脂,表征了压敏胶的高温流变性能以及与钢板的剥离强度。结果表明,加入歧化松香的PBAT基热熔压敏胶表现出较大的180°剥离强度为5.39 N/25 mm,以及较强的润湿被黏物的能力,流变测试表现出较大模量,黏弹窗口发现该热熔压敏胶可用作剥离型压敏胶。
This study developed a series of biodegradable hot-melt pressure-sensitive adhesives based on polybutylene adipate terephthalate(PBAT).The molecular weight of industrial PBAT resin was first modulated under controlled conditions.Subsequently,various rosin-derived tackifying resins were incorporated to formulate the adhesives.The performance of these PBAT-based hot-melt pressure-sensitive adhesives was evaluated through high-temperature rheology and 180°peel strength tests from steel plates.Results indicated that the adhesive formulated with disproportionated rosin exhibited superior properties,achieving peel strength of 5.39 N/25 mm and demonstrating excellent wetting ability on the substrate.Rheological analysis revealed a high modulus,and the viscoelastic profile confirmed that the material's performance aligns with that of a permanent pressure-sensitive adhesive.These findings highlight the effectiveness of disproportionated rosin as a tackifier for creating viable,biodegradable hot-melt pressure-sensitive adhesives from PBAT.
作者
黄慧敏
徐睿杰
雷彩虹
HUANG Huimin;XU Ruijie;LEI Caihong(Guangdong Energy Storage Materials and Device Engineering Laboratory,School of Materials and Energy,Guangdong University of Technology,Guangzhou 510006,China)
出处
《中国塑料》
北大核心
2025年第12期114-118,共5页
China Plastics
关键词
热熔压敏胶
聚己二酸对苯二甲酸丁二酯
增黏树脂
剥离性能
hot-melt pressure sensitive adhesive
polybutylene adipate terephthalate
tackifying resin
peel performanc
