基于玉米棒的环境友好材料研究(Ⅰ)玉米棒的液化反应及植物多元醇的制备  

STUDIES ON THE ENVIRONMENTALLY SAFE MATERIALS BASED ON CORN-COB (Ⅰ)THE LIQUEFACTION OF CORN-COB AND PREPARATION OF BIOMASS POLYOL

作　　者：戈进杰[1] 张志楠[1] 徐江涛[1] 

机构地区：[1]聚合物分子工程教育部重点实验室,复旦大学高分子科学系上海200433

出　　处：《高分子材料科学与工程》2003年第3期194-197,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金重点资助项目 (5 99330 70 ;39970 5 98)

摘　　要：在以聚乙二醇 4 0 0 (FEG4 0 0 )和一缩二乙二醇 (DEG)作为液化试剂 ,在硫酸催化作用下玉米棒(CB)主要成分聚多糖和木质素能被液化 ,液化率可达 90 % ,所得液化多元醇羟值为 2 mmol/ g KOH～3.5 mmol/ g KOH,粘度在 4 0 0 m Pa.s～ 1 2 0 0 m Pa.s,符合半硬质聚氨酯泡沫体要求。同时考察了各种液化参数对液化效果的影响 。Liquefaction of the corn cob was conducted by using a solvent mixture consisting of poly(ethylene glycol) (PEG400) , diethylene glycol (DEG) and sulfuric acid. The degree of liquefaction was up to 90%. With the hydroxyl number from 2.5 mmol/gKOH to 3 mmol/gKOH and viscosities from 400 MPa·s to 1200 MPa·s , the Liquefied polyols were suitable for the preparation of hemi horniness foam. The effects of liquefaction parameters on the degree of Liquefaction were evaluated. Variation of components in the Liquefaction process was studied by FT IR.

关 键 词：玉米棒 植物多元醇 聚氨酯 生物降解 环境友好材料 液化反应 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业] TQ324.9