Research Article
Modyfication of the Rigid Polyurethane-Polyisocyanurate Foams
Table 4
Properties of the liquid products of the initial foam decomposition.
| | No. of foam | Content of polyethylene glycol 1500 [%] | Density (temp. of 25°C) [kg/m3] | Viscosity (temp. of 25°C) [mPa·s] | Hydroxyl number [mg KOH/g] |
| | 0 | 0.0 | 1100.0 | 2410.0 | 420.0 | | 1 | 2.5 | 1130.0 | 2425.0 | 433.0 | | 2 | 5.0 | 1150.0 | 1965.0 | 437.0 | | 3 | 7.5 | 1170.0 | 1981.0 | 444.0 | | 4 | 10.0 | 1110.0 | 3325.0 | 450.0 | | 5 | 12.5 | 1126.0 | 3337.0 | 457.0 | | 6 | 15.0 | 1095.0 | 3977.0 | 461.0 | | 7 | 17.5 | 1134.0 | 4011.0 | 477.0 | | 8 | 20.0 | 1145.0 | 4237.0 | 481.0 |
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