Separation of lignin from pine-nut hull by the method of HBS and preparation of lignin-PEG-PAPI
By the method of high boiling solvent (HBS), HBS-lignin has been separated from pine-nut hull with 1,4-butanediol solution as solvent, and characterized by GPC, IR, 1HNMR and TG.The optimal conditions are described as: the ratio of solid raw material to solvent (g:mL) in 1:12, the amount of catalyst in 6%, the reaction time for 2 hrs, reaction temperature at 200℃, and 90% of 1,4-butanediol as the solvent, and the yield of lignin up to 70%.The hydroxyl value of obtained HBS-lignin is about 197.2mgKOH/g.Furthermore, the HBS-lignin replaces the partial PEG400 to employ the synthesis of lignin-PEG-PAPI.The experimental results indicate that mechanical properties and solvent resistance of lignin-PEG-PAPI are apparently improved with comparison to the PEG-PAPI.
HBS 1,4-butanediol Pine-nut shell Lignin Lignin-PEG-PAPI
Jun Jia Yu-chao Qu Yue Gao Yong-peng Yuan Kai-kai Wang Fan Yang Guang-feng Wu Ya-feng Li
School of Chemical Engineering,Changchun University of Technology,Changchun,P.R.China
国际会议
2012 China Functional Materials Technology and Industry Forum(2012中国功能材料科技与产业高层论坛)(CFMTIF2012)
昆明
英文
429-434
2012-11-09（万方平台首次上网日期，不代表论文的发表时间）