HFC-245fa发泡喷涂聚氨酯硬泡预混料的储存稳定性研究  

Study on the Storage Stability of Premix of HFC-245fa Blown Spraying Rigid Polyurethane Foam

作　　者：范涛 潘榕伟[2] 黄恒 王文响 FAN Tao;PAN Rongwei;HUANG Heng;WANG Wenxiang(Honeywell Sinochem Lantian New Materials Co.Ltd,Suzhou 215433,China;Honeywell Integrated Technology(China)Co.Ltd,Shanghai 201203,China;Honeywell Advanced Material(China)Co.Ltd,Suzhou 215634,China)

机构地区：[1]中化蓝天霍尼韦尔新材料有限公司,江苏苏州215433 [2]霍尼韦尔综合科技(中国)有限公司,上海201203 [3]霍尼韦尔高新材料(中国)有限公司,江苏苏州215634

出　　处：《聚氨酯工业》2025年第1期30-33,共4页Polyurethane Industry

摘　　要：针对HFC-245fa体系喷涂预混白料存在储存稳定性差的问题,进行白料配方(包括HCFC-141b和HFC-245fa发泡体系)的优化,探讨了包括聚酯多元醇/阻燃剂、水含量、催化剂体系选择等因素对白料储存稳定性的影响。结果表明:聚酯多元醇和氯代磷酸酯类阻燃剂TCPP在HFC-245fa和HCFC-141b喷涂组合聚醚体系储存过程会水解产生酸,并和部分催化剂反应而导致储存过程中反应性变慢,影响了储存稳定性;同时体系更高含水量和高活性叔胺催化剂会加剧聚酯和阻燃剂TCPP的水解反应。To solve the problem for the storage stability of HFC-245fa spray preblended polyol,the formula of preblended polyol(including HCFC-141b and HFC-245fa system)were optimized,and the influence of the addition amount of polyester polyol/flame retardant,water content,catalyst system selection and other factors on the storage stability was discussed.The results showed that,during the storage process of the polyether spraying system with HFC-245fa and HCFC-141b,the hydrolysis of polyester and chlorophosphate ester flame retardant TCPP would generate acid and react with some catalysts,resulting in slow reactivity during the storage process and affecting the storage stability.The hydrolysis reaction of polyester and flame retardant TCPP was accelerated by higher water content and higher activity of tertiary amine catalyst.

关 键 词：HFC-245FA 发泡剂 喷涂 储存稳定性 聚氨酯硬泡 

分 类 号：TQ328.3[化学工程—合成树脂塑料工业]