A COMPOSITION FOR PREPARATION OF RIGID FOAM POLYURETHANE

摘要

A composition for preparation of rigid foam polyurethane contains oxypropylated ethylene diamine, foam regulator, fire-retardant, catalytic system, water, isocyanate component and silicon-organic alcohols of the general formula [RSiO3-x/2(OR'OH)x]n. Samples of foam polyurethane materials based on such composition as compared with the prototype have higher indices: pressure strength - for 8.3-41.7%; static bending strength - for 16.7-47.62%; lowerindices: convergence - for 12.5-35.0% and water absorption - for 38.9-66.7%, which provides more prolonged exploitation thereof.