甘蔗渣多元醇制备聚氨酯硬泡的研究  

Study on Preparation of Rigid Polyurethane Foam from Bagasse Polyol

作　　者：庞浩[1] 柳雨生[1] 廖兵[1] 赵树录[1] 胡美龙[1] 

机构地区：[1]中国科学院广州化学研究所

出　　处：《林产化学与工业》2006年第2期57-60,共4页Chemistry and Industry of Forest Products

基　　金：广东省自然科学基金资助项目(04101249);中科院知识创新工程重要方向资助项目(JCX2-SW-04);广州市科技计划资助项目(06A1406285)

摘　　要：通过对甘蔗渣进行热化学液化,制得了以甘蔗渣多元醇为原料的硬质聚氨酯泡沫,主要讨论了催化剂、表面活性剂、发泡剂和异氰酸酯对其性能的影响.结果表明：催化剂B的用量为 2.53 % 时,泡沫体的密度最小,但对泡沫的压缩模量的影响并不大;随着催化剂D用量的增加,泡沫密度和力学性能同时降低;表面活性剂AK-8805用量为 2.06 % 时,泡沫的密度最小,其力学性能也比较好;以水为发泡剂,当水用量增加时,泡沫密度减小但力学性能没有随密度的减小而相应降低,而先有所增加,最后维持在一个平台上;异氰酸酯用量少了,反应程度不够,性能必然会降低,但用量加多了,同样会影响性能.研究表明,PM-200用量在 220 %～240 % 泡沫压缩性能最好.Bagasse was liquefied into polyols with sulfuric acid as catalyst, and the product was used to prepare rigid polyurethane foams. The effects of catalyst, surfactant, foaming agent and isocyanate upon density and mechanical properties of foams were studied, Results showed that at dosage of catalyst B 2.53 %, density is the smallest, while its influence toward compression modulus is not significant. With the increased dosage of catalyst D, both density and strength decrease, At the dosage of AK- 8805 2.06 %,density is the smallest and compression modulus is high. The content of NCO influences the properties of the foams, when content of PM-200 is between 200 %-240 % its compressive properties is the optimum.

关 键 词：甘蔗渣 液化 植物多元醇 聚氨酯 硬泡沫 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]