常温下酚醛树脂的可发性研究  

Study on the foamable of phenolic resin at room temperature

作　　者：韩啸[1] 蔡然[1] 唐鑫[1] 刘计福[1] 宋镕光[1] 赵占奎[2] 李月明 李东风[1] 

机构地区：[1]长春工业大学化学与生命科学学院,吉林长春130012 [2]长春工业大学材料科学与工程学院,吉林长春130012 [3]北京索利特新型建筑材料有限公司,北京100000

出　　处：《应用化工》2010年第3期397-400,共4页Applied Chemical Industry

基　　金：企业资助研发项目

摘　　要：研究了酚醛树脂常温发泡的最适宜条件。结果表明，甲醛与苯酚的摩尔比为1．8～2．0，树脂粘度在2—4Pa．s（36℃），树脂固含量在78％～81％的甲阶酚醛树脂常温发泡效果最好；环境温度在17～25℃时，最适宜常温发泡；发泡剂用量与泡体性能的关系为：发泡剂用量增大，泡沫体表观密度和压缩强度降低，发泡剂用量〉14．0％后，泡沫体的密度变化不大。环境温度不同，固化剂的种类与比例也不同。In this paper, phenolic resin at room temperature for the most appropriate conditions for foaming. The results showed that molar ratio of formaldehyde to phenol 1.8 to 2.0, the resin viscosity at the 2 ~ 4 Pa · s （36 ℃ ） ,resin which solid content of 78% ~ 81% of the A class of phenolic resin foam best at room temperature;ambient femperature at 17 ~ 25 ℃, the most appropriate foaming at room temperature ; blowing agent usage and the relationship between the： performance of foam body are： increased use of foam, foam density and compressive strength, surface view of lower-fat, foam dosage of more than 14.0%, the little change in the density of foam. The ambient temperature is different from the kinds and proportions of curing agents are also different.

关 键 词：酚醛树脂 泡沫材料 常温发泡 固化剂 

分 类 号：TQ323[化学工程—合成树脂塑料工业]