文献类型：期刊文献

中文题名：金属氧化物催化下制备快速固化苯酚-尿素-甲醛树脂的性能

英文题名：Phenol-Urea-Formaldehyde Resin Catalyzed with Divalent Metal Oxides

作者：莫弦丰[1,2,3] 范东斌[1,2] 秦特夫[1,2] 储富祥[1,2]

第一作者：莫弦丰

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;[3]南京林业大学

年份：2014

卷号：28

期号：6

起止页码：9-12

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2011】；

基金：国家自然科学基金项目"二价金属化合物对苯酚-尿素-甲醛共缩聚树脂结构形成的影响及调控机制"(31200441);中国林科院林业新技术研究所基本科研业务费专项"酚醛树脂快速固化技术及应用研究"(CAFINT2013K03);"十二五"国家科技支撑计划课题"林木资源化学深加工关键技术研究及示范"(2012BAD24B04)

语种：中文

中文关键词：二价金属氧化物;催化;苯酚-尿素-甲醛树脂;胶合强度;凝胶时间;储存期

外文关键词：divalent metal oxide; catalyst; phenol-urea-formaldehyde resin; bond strength; gel time; pot life

分类号：TQ325;TS653.3

摘要：采用4种二价金属氧化物作为催化剂,探讨催化剂类别、加入阶段、加入量、甲醛添加量、氢氧化钠添加量等5个因素,对合成苯酚-尿素-甲醛(PUF)树脂性能的影响。结果表明:5个因素对PUF树脂凝胶时间、试件的胶合强度均有影响;与对照PUF树脂相比,采用优化工艺合成PUF树脂的热压时间和凝胶时间均明显缩短。
CaO,MgO,ZnO and BaO were used as catalysts to make phenol-urea-formaldehyde （PUF） resins.The molar ratio effects of formaldehyde to urea plus phenol,molar ratio of sodium hydroxide to phenol,and adding stage,adding amount and type of divalent metal oxide on panel bonding strength,gel time and pot life were evaluated and optimized through orthogonal experimentation.The results showed that divalent metal oxides as catalysts were effective to make fast curing PUF resin with shortened gel time compared with the control resin.The optimized parameters were 0.50％ ZnO of phenol mass added at the reaction beginning with 2.0 molar ratio of formaldehyde to urea plus phenol and 0.6 molar ratio of sodium hydroxide to phenol.