聚醚TSU-450L和聚醚H303复配制备硬质聚氨酯泡沫及性能研究  

Study on preparation and property of rigid polyurethane foam based combination of polyether TSU-450L and H303

作　　者：张晓明[1] 胡文峰 江燕妮[1] 岳馥莲 秦丹[1] 朱明[1,3] 

机构地区：[1]四川师范大学化学与材料科学学院,成都610068 [2]广东省佛山市禅城区环境保护局,佛山528000 [3]四川教育厅特种废水处理工程实验室,成都610068

出　　处：《化工新型材料》2017年第1期91-94,共4页New Chemical Materials

基　　金：四川省高校重点实验室开放项目(SWWT2014-4);四川省教育厅成果转化重大培育项目(13CZ0021)资助

摘　　要：聚醚TSU-450L与聚醚H303复配和异氰酸酯按一定质量比混合,HFC-365/227作发泡剂,经催化发泡固化制备硬质聚氨酯泡沫(RPUF)。产物用红外光谱(FT-IR)、热失重(TGA)和扫描电镜(SEM)表征。实验表明,组合聚醚(TSU-450L∶H303=7∶3,质量比)和异氰酸酯质量比为1∶1.25,表观密度45kg/m^3,导热系数0.026W/(m·k),耐热性120℃,吸水率0.025g/cm^3,抗压强度0.33MPa。结果显示制备的RPUF达到埋地钢质管道防腐保温层技术规范。The RPUF was prepared by compound polyether of TSU-450L and H303 combination mixed with isocyanate in catalyzing,foaming and solidifying,used HFC-365/227 as foaming agent.The products were characterized with FTIR,TGA and SEM.Tests indicated that apparent density was 45kg/m^3,coefficient of thermal conductivity 0.026W/（m·k）,heat resistance was 120℃,water absorption was 0.025g/cm^3,and compression strength was 0.33 MPa when the mass ratio was 1∶1.25 in the compound polyether of TSU-450 Land H303（mass ratio was 7∶3）with isocyanate.The results showed that the RPUF was suitable for the requirements of Technical standard for anti-corrosion and insulation coatings of buried steel pipeline.

关 键 词：硬质聚氨酯泡沫 组合聚醚 异氰酸酯 发泡剂 导热系数 

分 类 号：TQ328.3[化学工程—合成树脂塑料工业]