甲酸甲酯和HCFC-141b作为聚氨酯硬泡发泡剂的比较研究  

A Comparative Study of Methyl Formate and HCFC-141b as Foaming Agent of Rigid Polyurethane Foam

作　　者：施栋梁 陈胤淳 肖进光 杜鹏飞[1,2] 张飞鹏 SHI Dongliang;CHEN Yinchun;XIAO Jinguang;DU Pengfei;ZHANG Feipeng(College of Environment and Resources,College of Carbon Neutral Modern Industry,Fujian Normal University,Fuzhou 350117,China;Quangang Petrochemical Research Institute,Fujian Normal University,Quanzhou 362801,China;Fujian Baichuan Resources Recycling Technology Co.Ltd,Quanzhou 362801,China)

机构地区：[1]福建师范大学环境与资源学院碳中和现代产业学院,福建福州350117 [2]福建师范大学泉港石化研究院,福建泉州362801 [3]福建省百川资源再生科技股份有限公司,福建泉州362801

出　　处：《聚氨酯工业》2024年第6期35-39,共5页Polyurethane Industry

基　　金：福建省科技厅引导性项目(编号:2021Y0010)。

摘　　要：分别以甲酸甲酯和HCFC-141b为发泡剂制备2个系列的硬质聚氨酯泡沫塑料,比较了两种发泡体系的多元醇组分黏度、发泡时间以及制备得到的聚氨酯泡沫样品的密度、压缩强度和吸水率。结果表明:甲酸甲酯的发泡能力较强,甲酸甲酯发泡体系组合料黏度较低,聚氨酯泡沫的压缩强度较小,吸水率比HCFC-141b发泡泡沫稍大;甲酸甲酯对聚氨酯泡沫阻燃性能有负面影响,添加膨胀石墨能改善。Two series rigid polyurethane foams were prepared using methyl formate and HCFC-141b as blowing agents,respectively.The viscosity and foaming time of the polyol component and the density,compressive strength,and water absorption of the prepared polyurethane foams were compared between the two foaming systems.The results showed that methyl formate had a strong foaming ability,the viscosity of the polyol component under the methyl formate system was low,the compressive strength of the polyurethane foam under the methyl formate system was small,the water absorption rate was slightly larger than that of HCFC-141b blown foams.Methyl formate had a negative influence on the flame retardant properties of polyurethane foam,which could be enhanced by adding expanded graphite.

关 键 词：甲酸甲酯 发泡剂 硬质聚氨酯泡沫塑料 HCFC-141B 

分 类 号：TQ328.3[化学工程—合成树脂塑料工业]