Performance characterization of rigid polyurethane foam with refined alkali lignin and modified alkali lignin
Performance characterization of rigid polyurethane foam with refined alkali lignin and modified alkali lignin作者机构:Key Laboratory of Bio-based Material Science and Technology Ministry of Education Northeast Forestry University Harbin P.R. China
出 版 物:《Journal of Forestry Research》 (林业研究(英文版))
年 卷 期:2009年第20卷第2期
页 面:161-164页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0703[理学-化学]
基 金:The key project of "11th Five-Year Plan" in Heilongjiang Province (No. GB06B501-3)
主 题:refined alkali lignin modified alkali lignin rigid PU foam mechanic performance thermal stability
摘 要:The two kinds of rigid polyurethane(PU) foams were prepared with respectively adding the refined alkali lignin and alkali lignin modified by 3-chloro-1,2-epoxypropane to be instead of 15% of the polyether glycol in *** indexes of mechanical performance, apparent density, thermal stability and aging resistance were separately tested for the prepared PU *** results show that the mechanical property, thermal insulation and thermal stability for PU foam with modified alkali lignin are excellent among two kinds of PU foams and control *** additions of the refined alkali lignin and modified alkali lignin to PU foam have little effect on the natural aging or heat aging resistance except for decreasing hot alkali resistance ***, the thermal conductivity of modified alkali lignin PU foam is lowest among two kinds of PU foams and control *** alkali lignin PU foam modified by 3-chloro-1,2-epoxypropane could be applied in the heat preservation field.