Production method for rigid foam polyurethane composite heat-conservation board
A technology of rigid polyurethane foam and composite thermal insulation, which is applied in the direction of thermal insulation, flat products, building components, etc. It can solve the problems of poor fire resistance of surface sheets, unsatisfactory fire resistance, and poor impermeability, etc., and achieve good waterproof, Good fire retardant performance, high strength effect
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[0010] To further illustrate the present invention, the present invention will be further described in detail below in conjunction with specific embodiments.
[0011] In the first step, after mixing the adhesive and inorganic powder at a ratio of 1:1.5-2, the mixture and non-woven fabric are pressed together with a professional production line to make a fire-resistant, waterproof, high-strength polymer of 0.1mm-5mm. The cement sheet is spare.
[0012] The adhesive is made of raw materials in the following weight ratio: high molecular polymer emulsion 75-85%, flame retardant 5-10%, film-forming aid 1-6%, deionized water 5-10%, thickening Agent 0-1.5%.
[0013] E.g:
[0014] ①. Weigh 75% of high molecular polymer emulsion, 10% of flame retardant, 6% of film forming aid, and 9% of deionized water according to weight percentages, put them in a mixer, and mix them evenly.
[0015] ②Weigh 85% of high molecular polymer emulsion, 5% of flame retardant, 1% of film forming aid, 7.5% of deio...
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