Research Article
Physical Properties of Soy-Phosphate Polyol-Based Rigid Polyurethane Foams
Table 5
Foaming formulation of rigid polyurethane foams with different isocyanate indices.
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All recipes and calculations are based on 100 total parts by weight of polyol, which conventionally dictates that the sum of all polyols adds up to 100 parts. The amount of isocyanate is based on the isocyanate index. The isocyanate index is the amount of isocyanate used relative to the theoretical equivalent amount. |