利用动态热机械分析仪对低毒脲醛树脂性能的研究  

Study on Properties of Low Toxic UF Resin Using DMA

作　　者：朱丽滨[1] 顾继友[1] 

机构地区：[1]东北林业大学

出　　处：《林产工业》2006年第5期36-38,共3页China Forest Products Industry

基　　金：国家自然科学基金资助项目"低甲醛释放脲醛树脂固化机理研究";主任专项基金项目;批准号:30240069

摘　　要：利用动态热机械分析(DMA)对不同固化体系下3种低毒UF树脂固化物的力学性能进行了研究。试验结果表明:不同固化体系下3种低毒UF树脂固化物的力学性能不同。对于UF-1,使用氯化铵为固化剂,树脂交联固化程度要高于其他两种固化体系,固化物储存模量最高。对于UF-2来说,在3种固化体系下,固化物的储存模量之间相差不是很大。对于UF-3,在第2种固化体系条件下,固化物的储存模量最大,损耗角正切最小。因此在实际应用过程中,针对不同的低毒UF树脂胶黏剂需要选择与之相匹配的固化体系,才能达到最佳的固化效果和胶接强度。Mechanical properties of 3 types of low toxic UF resin cured with different curing system were studied. Experiment results showed mechanical properties of 3 types of low toxic UF cured with different curing system were different. For UF-1, the curing degree cured with NH4 C1 was higher than that with the other curing system. For UF-2, there were no great difference of storage modulus when cured with defferent curing system. For UF-3,when cured with the second system, the storage modulus was the greatest and the loss tangent was smallest among that cured with 3 curing system.

关 键 词：动态热机械分析 低毒脲醛树脂 力学性能 

分 类 号：TQ433.431[化学工程]