文献类型：期刊文献

英文题名：Preparation and characterization of novolac phenol-formaldehyde resins with enzymatic hydrolysis lignin

作者：Zhou Jing[1] Hu Lihong[1] Liang Bingchuan[1] Bo Caiying[1] Jia Puyou[1] Zhou Yonghong[1]

通信作者：Zhou, YH[1]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Jiangsu, Peoples R China

年份：2015

卷号：54

起止页码：178-182

外文期刊名：JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS

收录：;EI(收录号：20151600752394);Scopus(收录号：2-s2.0-84939263629);WOS:【SCI-EXPANDED(收录号:WOS:000360510100022)】；

基金：This work was financially supported by the National High Technology Research and Development Program of China (863 Program, No.2013AA050703) and the Innovation Funds for Small and Medium Enterprises in Jiangsu Province (BC2013085).

语种：英文

外文关键词：EHL; Oxalic acid; Liquefaction; Novolac phenol-formaldehyde resins

摘要：Enzymatic hydrolysis lignin (EHL) derived from bio-ethanol production is attracting increased attention for use as a substitute for petroleum-based phenol in phenolic resins. In this work, EHL was successfully liquefied into small phenolic compounds catalyzed by oxalic acid in the presence of phenol. Experiments were designed to determine the effects of different replacement percentages of phenol by EHL on the residue content (RC) and the combined phenol (CP). Up to a 55% weight of phenol was substituted by liquefied EHL to formulate a novolac bio-based phenolic resin (EHL-PF). The differences between EHL and liquefied EHL, PF and EHL-PF were studied by Fourier transform infrared (FT-IR) spectroscopy, gel permeation chromatography (GPC), H-1 NMR spectroscopy, scanning electron microscopy (SEM) and differential scanning calorimetry (DSC). RC was found to increase with the increasing replacement percentage, while CP was found to increase at a lower replacement percentage and decrease at a higher replacement percentage. EHL-PF possessed comparable properties to those of commercial products. (C) 2015 Published by Elsevier B.V. on behalf of Taiwan Institute of Chemical Engineers.