高水低245fa聚氨酯体系黏结力的改善方法  

Improvement of Adhesion of High-water Content and Low 245fa Dosage Polyurethane System

作　　者：袁辉军 黄恒[1] 余小贯 安康 YUAN Huijun;HUANG Heng;YU Xiaoguan;AN Kang(Honeywell Integral Technology(China)Co.,Ltd.,Shanghai 201203,China;Honeywell Sinochem Lantian New Materials Co.,Ltd.,Taicang 215433,Jiangsu Province,China)

机构地区：[1]霍尼韦尔综合科技(中国)有限公司,上海201203 [2]中化蓝天霍尼韦尔新材料有限公司,江苏太仓215433

出　　处：《上海塑料》2021年第4期39-43,共5页Shanghai Plastics

摘　　要：提出了用高水低245fa体系替代臭氧层消耗物质HCFC-141b体系的方案,并简述了该方案的环保性、综合成本有效性。通过实验,验证了添加甘油起始聚醚对黏结性能的影响。结果表明:甘油起始聚醚G-310有效地改善了高水低245fa体系的泡沫脆性,大大提高了泡沫与基材的黏结力;同时,没有影响泡沫其他方面的物理性能,如尺寸稳定性、压缩强度和热导率。A scheme of replacing ozone-depleting substance HCFC-141b with a high-water content and low 245fa dosage system was proposed.The environmental protection property and comprehensive cost-effectiveness of the scheme were briefly described.Through experiments,the effect of adding glycerol-initiated polyether on the adhesion property was verified.The results show that the glycerol-initiated polyether G-310 effectively improves the foam brittleness of high-water content and low 245fa dosage system,and greatly enhances the peel strength between the foam and the substrate.At the same time,it does not affect other physical properties of the foam,such as dimensional stability,compressive strength and thermal conductivity.

关 键 词：聚氨酯 发泡剂 黏结力 聚醚 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]