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
Characterization of polyurethane foams from soybean oil
โ Scribed by Jacob John; Mrinal Bhattacharya; Robert B. Turner
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 725 KB
- Volume
- 86
- Category
- Article
- ISSN
- 0021-8995
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## Abstract Both rigid and flexible waterโblown polyurethane foams were made by replacing 0โ50% of Voranolยฎ 490 for rigid foams and Voranolยฎ 4701 for flexible foams in the Bโside of foam formulation by epoxidized soybean oil. For rigid waterโblown polyurethane foams, density, compressive strength,
The reactions between polymeric diphenyl methane diisocyanate (polymeric MDI) and conventional polyols to produce foamed polyurethane products are well documented and published. Current polyurethane foams are predominantly produced from these reactions whereby the polyol components are usually obtai