Production method for multifunctional rigid foam polyurethane composite heat-conservation board

Abstract

A preparation method used for preparing a multifunctional polyurethane hard foam insulation composite board includes the following steps: a waterproof-fireproof polymer cement sheet is prefabricated; after an adhesive and an inorganic powder are mixed according to the proportion of 1:1.5 to 2, the mixture is pressed with a non-woven cloth by the manufacturing line; the adhesive is prepared by the polymer emulsion, a flame retardant, film-forming additives, deionized water and a thickener by a certain proportion and the inorganic powder is prepared by the stuffing, a solid flame retardant and cement by a certain proportion; the foam material is formed by the following materials according to the weight portions: 54 to 64 percent of PAPI, 10 to 15 percent of flame-retardant polyether polyol, 13 to 18 percent of polyether polyol, 4 to 7 percent of vesicant, 0.8 to 1 percent of catalyzer, 5 to 8.5 percent of flame retardant and 0.7 to 1 percent of foam-leveling agent; a polyurethane foaming machine manufacturing line is adopted to froth the foam material into the polyurethane board and the polymer cement sheet is simultaneously compounded on two surfaces of the polyurethane board so as to prepare the polyurethane insulation composite board; and the composite board prepared by adopting the method can be used for the outer-wall waterproof, fireproof and insulation engineering of buildings.

Description

technical field [0001] The invention relates to a method for manufacturing a thermal insulation composite board used for building exterior walls, in particular to a method for manufacturing a multifunctional hard foam polyurethane composite thermal insulation board. Background technique [0002] In the prior art, a process method for producing rigid polyurethane composite panels with the application number 200510045579.4 is disclosed. The process method is to first make a polymer sheet for later use. The polymer sheet is made by mixing adhesive and inorganic powder. Finally, the mixture and non-woven fabric are passed through the polymer sheet production line to produce a polymer sheet, and then the polyisocyanate and combined polyether are foamed into a polyurethane sheet with a continuous production line of a polyurethane foaming machine. Composite to both sides of the polyurethane board to produce a polyurethane composite board. The hard foam polyurethane composite board...

AI Technical Summary

Problems solved by technology

Although this kind of insulation board has fire retardant performance, its fire retardant effect is not ideal, and because of its large thickness, it is only suitable for use as a fire barrier, not suitable for large areas outside the outer walls of buildings.