摘要
对不同固化体系下三种低毒脲醛树脂固化物随环境变化的甲醛释放量进行了具体研究。试验结果表明:固化体系不同,脲醛树脂的甲醛释放量有很大差别。随着温度的升高,甲醛释放量明显增加;随着时间的变化,脲醛树脂固化物的甲醛释放量逐渐减少,第5天以后逐渐趋于稳定。用三聚氰胺进行改性的脲醛树脂的甲醛释放量明显低于未加任何改性剂的脲醛树脂。
Formaldehyde emission from cured substance of three kinds of low toxic UF resin through different curing system with environment change was studied. Experimental results showed formaldehyde emission values of the same UF resin in different curing system were various. With rise of temperature,fromaldehyde emission increased obviously. As time passed, formaldehyde emission reduced and tended to stable after 5 days. Formaldehyde emission of melamine-modified UF resin was lower than that of unmodified.
出处
《林产工业》
北大核心
2006年第4期27-29,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
关键词
脲醛树脂
固化体系
甲醛释放量
Urea formaldehyde resin
Curing system
Formaldehyde emission
作者简介
朱丽演，博士，讲师。
