文献类型：期刊文献

中文题名：纳米氧化镁催化合成木素-酚醛树脂的工艺及性能

英文题名：Preparation and Performance of Lignin-Phenol-Formaldehyde Resin Catalyzed with Nanometer Magnesium Oxide

作者：王钧[1,2] 李改云[1,2] 范东斌[1,2]

第一作者：王钧

机构：[1]中国林科院木材工业研究所;[2]国家林业局木材科学与技术重点实验室

年份：2017

卷号：31

期号：2

起止页码：34-37

中文期刊名：木材工业

外文期刊名：China Wood Industry

收录：CSTPCD;;北大核心:【北大核心2014】；

基金：国家林业公益性行业科研专项“木质纤维选择性微波液化产业集成与示范”(201504602)

语种：中文

中文关键词：纳米氧化镁;催化剂;木素-酚醛树脂;胶合强度;凝胶时间;储存期

外文关键词：nano-MgO; catalyst; LPF resin; bonding strength; gel time; storage life

分类号：TS653;TQ433.431

摘要：以纳米氧化镁(MgO)为催化剂,合成酶解木质素含量为50%的木素-酚醛(LPF)树脂,探究甲醛/苯酚(F/P)量比、MgO添加量、NaOH/P量比等参数对树脂凝胶时间、储存期及试件胶合强度的影响规律。结果表明,LPF树脂的优化合成工艺是:F/P量比为1.9,MgO添加量为1.5%,NaOH/P量比为0.9,制备树脂的凝胶速度较普通树脂提高30%以上,试件胶合强度满足GB/T 9846-2015中I类胶合板要求。
Nano-MgO was used as a catalyst to prepare lignin-phenol-formaldehyde（LPF） resin which was composed of 50% enzymatic hydrolysis lignin.The effects of synthesis parameters were studied including：molar ratio of formaldehyde and phenol（F/P）, nano-MgO usage and molar ratio of sodium hydroxide to phenol（NaOH/P） on gel time and storage life of the LPF resin and bonding strength of plywood samples bonded with the LPF resin.The results indicated that optimum manufacturing technology were 1.9 molar ratio of F/P, 1.5% of nano-MgO usage and 0.9 molar ratio of Na OH/P.The gel time of the LPF could be shortened by 30%.The bonding strength of the plywood samples bonded with the LPF resin could meet National Standard GB/T 9846-2015 requirement for I-level plywood.