Research Article
Physical Properties of Soy-Phosphate Polyol-Based Rigid Polyurethane Foams
Table 1
Specifications of polymeric isocyanate PAPI 27 [
29].
| Properties | Values |
| Density, g/mL at 25°C | 1.23 | Average molecular weight | 340 | Functionality | 2.7 | NCO content by weight, % | 31.4 | Viscosity, cps at 25°C | 150–220 | Acidity, % | 0.017 | Vapor pressure, mm Hg at 25°C | <10−5 | Decomposition point °C | 230 |
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