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

Abstract

The invention discloses a preparation method used for preparing a multifunctional polyurethane hard foam insulation composite board. The method includes the following steps: a waterproof and fireproof polymer cement sheet is prefabricated; a polyurethane foaming machine manufacturing line is adopted to froth a foam material into the polyurethane hard foam board and the waterproof and fireproof polymer cement sheet is simultaneously compounded on two surfaces of the polyurethane hard foam board to prepare the multifunctional polyurethane hard foam insulation composite board. The method is characterized in that the foam material is prepared 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. The polyurethane hard foam insulation composite board prepared by the method not only has the waterproof and insulation properties, but also has the high intensity and fireproof property; and the board can be used for the outer-wall large-area waterproof, fireproof and insulation engineering of buildings.

Description

technical field [0001] The invention relates to a method for manufacturing a heat-insulating composite board used for exterior walls of buildings, in particular to a method for manufacturing a multi-functional hard foam polyurethane composite heat-insulating board. 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. The flame retardant combined polyether is a combined material made of the following raw materials in weight ratio: 5-15% of flame retardant, 40-60% of polyether, 15-30% of flame retardant polyether, 10% of foaming agent -20...

AI Technical Summary

Problems solved by technology

[0003] Although this kind of insulation board has fire retardant performance, its fire retardant effect is not ideal. The polyurethane board has a large thickness, low strength, and poor fire performance. large area use