银杏木炭降低脲醛树脂游离甲醛的研究  

The ginkgo-activated carbo absorbed the free formaldehyde in the UF resins

作　　者：张立芳[1] 李永伟[1] 杨海蜂[1] 

机构地区：[1]南京林业大学木材工业学院,江苏南京210037

出　　处：《中国胶粘剂》2007年第2期8-9,共2页China Adhesives

摘　　要：根据物理吸咐作用,在脲醛树脂中加入银杏木炭,测定和分析树脂中游离甲醛含量的变化,结果发现,当木炭与树脂质量比达到1:12．5,树脂中游离甲醛的含量可以降低50%左右,使其达到国家标准。Free formaldehyde in the urea-formaldehyde resins was absorbed by the ginkgo-activated carbon. The change of free formaldehyde contents were measured and analysisd in the resin,as a result,we found when the charcoal and resin quality ratio attain 1：12.5,a content of leaving the formaldehyde to be as low as 50%, making it satisfies a national standard completely.

关 键 词：脲醛树脂 银杏木炭 游离甲醛 

分 类 号：TQ323.3[化学工程—合成树脂塑料工业]