咪唑基离子液体中纤维素基聚氨酯材料的制备  

Preparation of Microcrystalline Cellulose/PU Materials in Imidazolium Ionic Liquids

作　　者：王川行[1] 丁运生[1,2] 韦力达[1] 苏江林[1] 

机构地区：[1]合肥工业大学化学工程学院高分子材料与化工研究所,安徽合肥230009 [2]可控化学与材料化工安徽省重点实验室,安徽合肥230009

出　　处：《广东化工》2010年第5期52-54,共3页Guangdong Chemical Industry

基　　金：安徽高校省级自然科学研究重点项目(KJ2009A019);合肥工业大学创新实验项目(2009CXSY119;2009CXSY124)资助

摘　　要：以TDI,MDI,IPDI,聚醚(N-220)和微晶纤维素为原料,在咪唑基离子液体氯化1-丁基-3-甲基咪唑中合成了系列纤维素基聚氨酯材料,并用FT-IR,TGA,XRD,SEM表征其结构与性能。TGA结果表明纤维素基聚氨酯材料具有良好的热稳定性能,以TDI,N-220,微晶纤维素为原料制备得到的材料热性能最优。XRD结果显示,聚氨酯链段的引入破坏了微晶纤维素的晶体结构,SEM照片显示,材料结构较为均一。A series of cellulose/polyurethane materials were prepared by TDI, MDI, IPDI, polyol and microcrystalline cellulose in the medium of 1-butyl-3-methylimidazolium chloride, one kind of imidazolium ionic liquid. And then their structures and properties were characterized by FT-IR, TGA, XRD and SEM. TGA datum indicate that cellulose/polyurethane materials have excellent thermal stability, and the hybrid prepared from prepolymer, which synthesized from N-220 and TDI, have the best thermal stability in all of cellulose/polyurethane materials. XRD results indicated that crystallization of cellulose should be destroyed by the introduction of PU chain. SEM photograph showed the materials have even structure performance.

关 键 词：微晶纤维素 聚氨酯 离子液体 材料 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]