利用硬质PU泡沫醇解回收料制备PU防水涂料的研究  

Preparation of Polyurethane Waterproof Coating Using the Recycled Materials by the Alcoholysis of Rigid Polyurethane Foam

作　　者：付新建[1] 徐亚娟[1] 刘少兵[1] 周思凯[1] 张华[1] 

机构地区：[1]洛阳理工学院材料科学与工程系,河南洛阳471023

出　　处：《塑料工业》2011年第8期85-87,94,共4页China Plastics Industry

基　　金：河南省教育厅科技计划科技攻关(2009B430008)

摘　　要：研究了以醋酸钾为催化剂、三甘醇(TEG)为醇解剂对硬质聚氨酯(PU)泡沫的醇解规律,并以醇解产物(PUP)作为原料制备预聚体;探讨了预聚体中醇解产物用量对制备PU防水涂料物理、机械性能的影响。研究结果表明:当催化剂醋酸钾(KAc)/PU质量比为0.02,醇解产物掺量w(PUP)/w(N220)=0.2时,制备的预聚体可以得到满足性能要求的聚氨酯防水涂料。The glycolysis of rigid polyurethane foam with potassium acetate as catalyst, triethylene glycol （TEG） as the agent was investigated. PUP was used as raw material to produce preformed polymer. It was also discussed the effect of the amount of the alcohlysis product in the preformed polymer on the physical and mechanical properties of PU waterproof coating. The results showed that excellent performance sample was obtained when the recycled polyols content in A component was 0. 2, using potassium acetate as catalyst and the content was 2. 0 wt%.

关 键 词：硬质聚氨酯 醇解 三甘醇 防水涂料 

分 类 号：TQ637[化学工程—精细化工]