摘要
研究三种添加剂(尿素、碳酸钠和乙酸甘油酯)对酚醛树脂(PF树脂)固化性能、适用期和胶接强度的影响。试验结果表明,在添加剂作用下,PF树脂胶合板的胶合强度能够达到GB/T 9846.3-2004《胶合板第3部分:普通胶合板通用技术条件》规定的Ⅰ类板要求,所需热压时间缩短;碳酸钠可最有效地实现PF树脂的快速固化,且对树脂的适用期影响较小。
Three different additives （urea, sodium carbonate and triacetin） were selected to be added in phenol-formaldehyde （PF） resin for accelerating curing rate. Curing properties, pot life and shear strength of cure-accelerated PF resins were investigated. The results indicated that the shear strength of plywood made with the PF resin could meet the specifications for type I plywood according to Chinese National Standard GB/T 9846.3-2004. Sodium carbonate could be more effective considering curing properties, shear strength and pot life.
出处
《木材工业》
北大核心
2014年第4期9-12,共4页
China Wood Industry
基金
中央级公益性科研院所基本科研业务专项基金"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)
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)
关键词
酚醛树脂
添加剂
固化性能
胶合强度
phenol-formaldehyde resin
additives
curing properties
shear strength
