木材胶接用三聚氰胺改性脲醛树脂胶黏剂性能研究.pdf

化学与黏合
2009 年第 31 卷第 4 期 CHEMISTRY AND ADHESION ·1·
试验与研究
TEST AND RESEARCH
木材胶接用三聚氰胺改性脲醛树脂胶黏剂性能研究
朱丽滨 1,2, 顾继友 1, 曹军 2
(,黑龙江哈尔滨 150040;,黑龙江哈尔滨 150040)
摘要:针对实际应用,以三聚氰胺作为改性剂对脲醛树脂进行共聚和共混改性。在不同固化体系下,采用不同摩尔比低毒
脲醛树脂分别与三聚氰胺混合,对混合比例变化对胶合强度和甲醛释放量的影响进行了具体研究。结果表明:固化体系不同,
胶接强度也不相同。随着摩尔比的升高,胶接强度提高,甲醛释放量亦相应提高。用三聚氰胺改性的脲醛树脂的胶接强度与甲醛
释放量均优于纯脲醛树脂。混合胶液中随三聚氰胺比例减少,胶接性能有所下降,甲醛释放量变化逐渐趋于平稳。
关键词:木材胶接;三聚氰胺;脲醛树脂;改性
中图分类号:TQ 文献标识码:A 文章编号:1001- 0017(2009)04- 0001- 03
Study on the Performance of UF Resin Adhesive Modified with Melamine Used for Wood Bonding
ZHU Li-, GU Ji-you1 and CAO Jun2
(1. College of Materials Science and Engineering, Northeast Forestry University, Harbin 150040, China; 2. The Mobile Post Doctoral Center of
Mechanical Engineering, Northeast Forestry University, Harbin 150040, China)
Abstract: The thesis considered the practical application, modified the UF resin with the melamine by copolymerization and co-blending. The
effects of different molar ratio of UF resin to melamine on bonding performance and the formaldehyde emission were studied. The experimental result
indicated that the bonding strength was not same if the curing system was different. With the molar ratio increasing, the bonding strength and the
formaldehyde emission enhanced. The bonding strength and the formaldehyde emission of UF resin modi