Both HCFC-and pentane-blown rigid polyurethane foams have been prepared from polyols derived from soybean oil. The effect of formulation variables on foam properties was studied by altering the types and amounts of catalyst, surfactant, water, crosslinker, blowing agent, and isocyanate, respectively
Rigid polyurethane foams based on activated soybean meal
โ Scribed by Youbing Mu; Xiaobo Wan; Zhengxin Han; Yongxin Peng; Shu Zhong
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 872 KB
- Volume
- 124
- Category
- Article
- ISSN
- 0021-8995
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A series of rosin-based rigid polyurethane foams of different composition were synthesized directly from chemically modified gum rosin. The effect of the composition of these rosinbased rigid polyurethane foams on their thermal stability and compression strength was measured. It was shown that the o