文献类型：期刊文献

中文题名：复合型固化剂对酚醛树脂固化性能的影响

英文题名：Effect of Hybrid Hardeners on Curing Properties of Phenol-formaldehyde Resin

作者：陈玉竹[1,2] 范东斌[1,2] 秦特夫[1,2] 储富祥[1,2]

第一作者：陈玉竹

通信作者：Chu, Fu-Xiang|[a0005728d87cb2daf502d]储富祥;

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

年份：2015

卷号：35

期号：5

起止页码：123-128

中文期刊名：林产化学与工业

外文期刊名：Chemistry and Industry of Forest Products

收录：CSTPCD;;EI(收录号：20154701596423);Scopus(收录号：2-s2.0-84947586945);北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：国家自然科学基金资助项目(31200441);中国林科院林业新技术所基本科研业务费专项资金(CAFINT2013K03);'十二五'国家科技支撑计划资助(2012BAD24B04)

语种：中文

中文关键词：酚醛树脂;固化剂;快速固化

外文关键词：phenol-formaldehyde resin; curing agent; fast curing;

分类号：TQ35

摘要：对比分析了添加羟甲基脲(MMU)、丙二醇碳酸酯(PC)、碳酸钠(Na2CO3)3种单组分固化剂及其复配固化剂的酚醛(PF)树脂的凝胶时间、适用期及固化性能。结果表明:单组分和复配两类固化剂添加到酚醛树脂后凝胶时间至少缩短了74 s,但添加固化剂PC及MMU+PC后PF树脂黏度在3 h内由初始的178 m Pa·s增加到18 000和9 000 m Pa·s左右,黏度增加过快,不符合胶合板生产至少4 h适用期的要求;复合固化剂MMU+Na2CO3显著降低PF树脂固化反应的起始和峰顶温度,实现低温快速固化同时符合人造板适用期要求,是一种可用于胶合板生产的PF树脂快速固化剂。
The gel time,pot life and curing properties of phenol-formaldehyde resin（ PF） resins induced by single curing agents,namely methylolureas（ MMU）,propylene carbonate（ PC）,sodium carbonate（ Na2CO3）,and their hybrid were investigated.The results demonstrated that the gel times of PF resins induced by single curing agent and two kinds of their counterpart hybrid curing agents were shortened by at least 74 s. However,the viscosities of PF resins in presence of PC and MMU ＋ PC increased to18 000 and 9 000 m Pa·s from 178 m Pa·s in 3h respectively,and the pot lifes were too short to meet the production requirement of 4 hours at least. The curing agents MMU ＋ Na2CO3 had significant effect on lowering the onset and peak temperature of curing reaction. Thus the aim of fast curing of PF resin,and the needs of production were achieved. Therefore,the curing agent of MMU ＋ Na2CO3 was suitable for fast curing at lower temperature in plywood production.