摘要
以杨梅单宁为原料,以羟甲基酚作为单宁基胶黏剂键桥增长剂,分析了羟甲基酚对单宁基胶黏剂适用期及其制备的胶合板耐水性影响,并对相关制备工艺进行优化。结果表明,以羟甲基酚作为单宁基胶黏剂键桥增长剂所制备的单宁基胶黏剂耐水性略低于普通酚醛树脂,但施胶性能和适用期优于普通酚醛树脂。单宁基胶黏剂最佳制备工艺为:羟甲基加量10%,甲醛加量6%,热压温度180℃,热压时间3min。
Tannin extract from bayberry was used as a basic material to make tannin-based adhesive. Hydroxymethyl phenol （HPF） was used as an enforcing agent, and formaldehyde as a curing agent. The effects of HPF on storage stability and water resistance of tannin-based adhesive was studied. The preparation process was optimized. The results indicated that water resistance strength of tannin-based adhesive with HPF was lower than common phenol formaldehyde resin,but it had better storage stability and coating performance than common phenol formaldehyde resin. The optimum process would be addition amount of HPF, 10 %, formaldehyde, 6 %, pressing temperature 180℃ and pressing time 3 min.
出处
《西北林学院学报》
CSCD
北大核心
2017年第1期234-238,共5页
Journal of Northwest Forestry University
基金
“十二五”国家科技支撑计划项目(2015BAD14B03)
云南省科技厅国际合作项目(2014IA017)
贵州大学引进人才科研项目
云南省木材胶黏剂及胶合制品重点实验室开放基金项目
关键词
单宁基胶黏剂
羟甲基酚
适用期
耐水性
tannin-based adhesive
hydroxymethyl phenol
storage stability
water resistance
