异氰酸酯对蜜胺泡沫塑料的改性研究  

Melamine Foams Modified by Isocynante

作　　者：相益信[1] 冯绍华[1] 李伟[1] 

机构地区：[1]青岛科技大学高性能聚合物及成型技术教育部工程中心,山东青岛266042

出　　处：《现代塑料加工应用》2011年第1期16-19,共4页Modern Plastics Processing and Applications

摘　　要：研究了多元醇用量和异氰酸酯种类对蜜胺泡沫塑料的结构、表观密度、氧指数、热失重以及导热系数等性能的影响。结果表明:二苯甲烷二异氰酸酯(MDI)改性蜜胺泡沫塑料的泡孔结构最均匀;随着多元醇用量的增加,MDI改性蜜胺泡沫塑料和异佛尔酮二异氰酸酯(IPDI)改性蜜胺泡沫塑料的密度逐渐减小;MDI改性蜜胺泡沫塑料有一定的阻燃性,而且热稳定性最好;随着温度的提高,MDI和2,4-二异氰酸酯(TDI)改性蜜胺泡沫的导热系数逐渐增加。The effects of polyol content and the kinds of isocynante on properties of melamine formaldehyde foams were discussed, including structure of the foams, apparent density, oxygen index, TG and thermal conductivity. The results show that the structure of the foams crosslinked by MDI is the most homogeneous; apparent densitiy of the foams crosslinked by MDI or IPDI is de- creased when amout of polyol increases; the foams crosslinked by MDI has some flame retardancy, and has the best thermal stability; thermal conductivity of the foams crosslinked by MDI or TDI is increased when temperature rises.

关 键 词：聚氨酯 蜜胺树脂 多元醇 异氰酸酯 泡沫 

分 类 号：TQ328.9[化学工程—合成树脂塑料工业]