Position: Home > Articles > A Cold Stetting Melamine-urea-formaldehyde Resin Adhesive
Journal of West China Forestry Science
2016
(3)
114-119
冷固型三聚氰胺-尿素-甲醛树脂胶粘剂的研制
作 者：
席雪冬;吴志刚;雷洪;杜官本;曹明;王洪艳
单 位：
浙江省林业科学研究院;西南林业大学
关键词：
常温冷固化;三聚氰胺-尿素-甲醛树脂;聚乙烯醇;集成材
摘 要：
为实现三聚氰胺-尿素-甲醛树脂(MUF-C)的常温冷固化,在不同固化剂作用下,研究了聚乙烯醇为改性剂的三聚氰胺-尿素-甲醛树脂(MUF-1)的性能特点,并借助核磁共振(13C-NMR)和动态热机械性能(DMA)分析,对树脂结构、热机械性能和固化性能进行表征。结果表明,聚乙烯醇改性树脂在初粘性及物理力学性能方面都能满足集成材用胶粘剂相关标准要求,有望作为一种集成材生产用胶粘剂;不同固化剂对树脂固化效果不同,以过硫酸铵为主剂的自制混合固化剂B作用下树脂固化性能最佳;相比于MUF-C,改性后的MUF-1体系中醚键、桥键总含量大,缩聚程度高,表现出更好的力学性能;在混合固化剂B作用下,MUF-C树脂固化起始温度明显降低,且其弹性模量大幅度增加;加入聚乙烯醇改性后的MUF-1树脂固化起始温度进一步降低。
译 名：
A Cold Stetting Melamine-urea-formaldehyde Resin Adhesive
作 者：
XI Xue-dong;WU Zhi-gang;LEI Hong;DU Guan-ben;CAO Ming;WANG Hong-yan;Wood Adhesives and Glued Products key Laboratory of Yunnan Province,Southwest Forestry University;College of Matericals Science and Technology,Beijing Forestry University;Zhejiang Academy of Forestry;
关键词：
curing at room temperature;;melamine-urea-formaldehyde resin(MUF);;polyvinyl alcohol(PVA) glulam
摘 要：
A kind of room temperature-curing melamine-urea-formaldehyde( MUF) resin adhesive was introduced,in this paper. Poly( vinyl alcohol) was used to modify melamine-urea-formaldehyde resin adhesives. The results showed that the MUF resin modified with poly( vinyl alcohol) was suitable for the preparation of glulam.13C-NMR analysis showed that compared with MUF-C,MUF-1 resin had more methylol group expended during condensation polymerization. That meant MUF-1 resin had higher degree of polycondensation. The result of DMA test showed the MUF resin adhesive had low curing temperature and high elastic modulus when the curing agent B was added.
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