Production method for rigid foam polyurethane composite heat-conservation board

Abstract

A preparation method used for preparing a polyurethane hard foam insulation composite board includes the following steps: a fireproof polymer cement sheet is prefabricated; a polyurethane foaming machine manufacturing line is adopted to froth the PAPI and flame-retardant conjugate polyether into the polyurethane board and the polymer cement sheet is simultaneously compounded on two surfaces of the polyurethane board to prepare the multifunctional polyurethane hard foam insulation composite board. The preparation method of the fireproof polymer cement sheet comprises the following steps: 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 on the manufacturing line; the adhesive is prepared by the following materials according to the weight portions: 75 to 85 percent of polymer emulsion, 5 to 10 percent of flame retardant, 1 to 6 percent of film-forming additives, 5 to 10 percent of deionized water and 0 to 1.5 percent of thickener; the inorganic powder is prepared by the following materials according to the weight portions: 40 to 60 percent of stuffing, 10 to 25 percent of solid flame retardant and 25 to 40 percent of cement. The composite board prepared by the method integrates the fireproof, waterproof, high-intensity and insulation functions into a whole and 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 rigid foam polyurethane composite thermal insulation board with multiple functions. Background technique [0002] A kind of application number is 200810013655.7 disclosed in the prior art a method for making a fire-resistant rigid foam polyurethane composite board and a fireproof isolation belt. Polyurethane foaming machine foams polyisocyanate and flame-retardant combined polyether into rigid polyurethane foam boards, and at the same time composites fire-retardant polymer sheets on both sides of rigid polyurethane foam boards to make rigid polyurethane foam composite boards. [0003] The fire-retardant polymer sheet described in it can adopt any one of the following materials: [0004] a. After mixing the inorganic powder and the flame-retardant adhesive in a ratio of 3:1, press the m...

AI Technical Summary

Problems solved by technology

[0005] Although this kind of insulation board has fire retardant performance, its fire retardant effect is not ideal. The surface sheet not only has poor fire retardant effect, but also has low strength and poor impermeability. Large area outside the exterior wall of the building