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

Inactive Publication Date: 2009-07-22
夏良强
1 Cites 6 Cited by

AI-Extracted 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 ...
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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.

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Examples

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Example Embodiment

[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 deionized water, 1.5% of thickener according to weight percentage, put it in a mixer, and mix it evenly. .
[0016] ③. Weigh 78% of polymer emulsion, 7% of flame retardant, 4% of film-forming aid, 10% of deionized water, and 1% of thickener according to weight percentage, put it in a mixer, and mix well. .
[0017] ④. Weigh 81.9% of high molecular polymer emulsion, 8% of flame retardant, 5% of film forming aid, 5% of deionized water, and 0.1% of thickener according to weight percentage, put it in a mixer, and mix well. .
[0018] Inorganic powder is made of raw materials with the following weight ratios: filler 40-60%, solid flame retardant 10-25%, cement 25-40%.
[0019] E.g:
[0020] ①. Weigh 60% filler, 15% solid flame retardant, 25% cement according to weight percentage, put it in a mixer, and mix it evenly.
[0021] ②. Weigh 50% filler, 10% solid flame retardant, 40% cement according to weight percentage, put it in a mixer, and mix it evenly.
[0022] ③. Weigh 40% filler, 25% solid flame retardant, and 35% cement according to weight percentage, put them in a mixer, and mix them evenly.
[0023] The filler adopts at least one of the following raw materials: talc powder, heavy calcium carbonate, kaolin, sepiolite, mica powder, silica fume powder, quartz sand, river sand.
[0024] The non-woven fabric can be any of polyester non-woven fabric, polypropylene non-woven fabric, glass fiber mat, glass mesh fabric, polyester non-woven fabric, etc.
[0025] The high molecular polymer emulsion can be at least one of the following emulsions: pure acrylic emulsion, styrene acrylic emulsion, silicone acrylic emulsion, vinegar acrylic emulsion.
[0026] The said film-forming assistant can use at least one of the following raw materials: TEXANOL, lauryl ester, ethylene glycol monobutyl ether, propylene glycol.
[0027] The thickener can use at least one of the following raw materials: UH-420, TE-936, TT935, ASE-60.
[0028] The flame retardant can use at least one of the following raw materials: ammonium hydrogen phosphate, aqueous ammonium polyphosphate, TCEP, and chlorinated paraffin.
[0029] The solid flame retardant can use at least one of the following raw materials: aluminum hydroxide, magnesium hydroxide, high polyammonium phosphate, antimony oxide.
[0030] The said cement adopts at least one of the following cements: ordinary Portland cement, white Portland cement, pozzolan Portland cement, fly ash Portland cement, slag Portland cement, composite Portland cement .
[0031] The second step is to use the continuous production line of the polyurethane foaming machine to foam the polyisocyanate and flame-retardant combined polyether into a rigid foam polyurethane board, and at the same time compound the fire retardant, waterproof, high-strength polymer cement sheet to both sides of the rigid foam polyurethane board , Made into rigid foam polyurethane composite insulation board.
[0032] The flame-retardant combined polyether can be prepared by the following method: first weigh the raw materials according to the following weight ratio: flame retardant 5-15%, polyether 40-60%, flame-retardant polyether 15-30%, foaming agent 10 -20%, catalyst 0.1-2%, foam stabilizer 1-4%, and then put these raw materials into the container and stir evenly.
[0033] The flame retardant can be any one or a mixture of flame retardants such as DMMP, TCEP, TCPP, decabromodiphenyl ether, hexabromocyclododecane, magnesium hydroxide, aluminum hydroxide, polyammonium hydrogen phosphate, etc. .
[0034] The blowing agent can be any one or a mixture of several blowing agents such as pentane, F11, and 141B.
[0035] The catalyst can be any one or a mixture of several catalysts such as organotin, phenylmercuric acetate, triethylenediamine, tetraethylenepentamine, stannous octoate, etc.
[0036] The foam stabilizer can be any one or a mixture of several foam stabilizers such as organosiloxane, dimethyl silicone oil, alkylphenol polyoxyethylene ether, etc.
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Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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