Soybean-oil-based polyisocyanurate rigid foams

被引：58
|
作者：
Javni, I [1 ]
Zhang, W [1 ]
Petrovic, ZS [1 ]
机构：
[1] Pittsburg State Univ, Kansas Polymer Res Ctr, Pittsburg, KS 66762 USA
来源：
JOURNAL OF POLYMERS AND THE ENVIRONMENT | 2004年 / 12卷 / 03期
关键词：
soy oil; polyol; polyisocyanurate foam; thermal stability;
D O I：
10.1023/B:JOOE.0000038543.77820.be
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Polyisocyanurate foams were prepared from polymeric 4,4'-diphenylmethane diisocyanate, (MDI), soy polyol and polypropylene oxide polyol by varying isocyanate index from 110 to 350. The higher isocyanate index produced polyisocyanurate foams with higher thermal stability, improved flame resistance, tensile strength, higher modulus, and higher glass transition. Soy-based foams displayed better thermal stability, lower flammability, higher rigidity (modulus) and higher compression strength than those based on the propylene oxide polyols of the same molecular weight and functionality.
引用
收藏
页码：123 / 129
页数：7
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