ENVIRONMENTALLY FRIENDLY POLYURETHANE CEMENT COMPOSITION

摘要

A polyurethane-cement composition is provided to ensure an excellent adhesive property to a substrate and relatively low temperature dependence, thereby preventing the polyurethane-cement composition from being exfoliated from the substrate even through the polyurethane-cement composition is exposed to high temperature. A polyurethane-cement composition comprises the 50-1000wt% of dry mortar on a basis of the 100wt% of resin mixture containing a base resin and a hardener in a ratio of 1 to 1. The base resin is synthesized by aromatic isocyanate and aliphatic isocyanate monomers. The aromatic isocyanates are one or more isocyanates selected from the group consisting of TDI, MDI, polymeric MDI, TODI and p-phenylene isocyanate. The aliphatic isocyanates are one or more isocyanates selected from the group consisting of hexamethylene diisocyanate, hydrogenated MDI and isophoron diisocyanate.