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Water-based moisture-permeable flame-retardant polyurethane film for textiles and preparation method
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A polyurethane film, water-based technology, applied in the direction of polyurea/polyurethane adhesive, film/sheet adhesive, film/sheet without carrier, etc. To make a film, there is no indication that it can be used in textiles, etc., to achieve the effect of good process implementation, soft film formation, and reduction of synthetic processes
Inactive Publication Date: 2020-04-21
LIAONING FIXED STAR FINE CHEM +1
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Abstract
Description
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And there is no statement about which field it is used for and the specific characteristics of the product, there is no statement that it can be used for textiles, and there is no mention of making a film
[0011] At present, there is no published technical literature of polyurethane film products that have environmental protection water-based polyurethane with waterproof, moisture permeability and flame retardancy
Method used
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[0061] (1) Prepolymerization reaction: 40 parts of isophorone diisocyanate, 55 parts of hydrogenated MDI, 60 parts of ethyleneoxide and tetrahydrofuran copolyether polyol with a molecular weight of 1800, and polycaprolactone polyol with a molecular weight of 200 8 35 parts of flame retardant polyester polyols with a molecular weight of 2000, 18 parts of ethyleneoxide and tetrahydrofuran copolyether polyols with a molecular weight of 400 were added to the reaction kettle, and the temperature was raised to 86 ° C and stirred for 4 hours;
[0062] (2) Chain extension reaction: add 10 parts of hydroxysulfonate with a molecular weight of 250, 5 parts of sulfamate with a molecular weight of 490, and react at 85° C. for 3.5 hours;
[0063] (3) Emulsification reaction: add 280 parts of deionized water, quickly disperse, and then keep warm at 55°C for 1.5 hours;
[0064] (4) Chain extension reaction: add 10 parts of 2,4-diethyl-1,5-pentanediol,...
[0071] (1) Prepolymerization reaction: 48 parts of isophorone diisocyanate, 35 parts of hydrogenated MDI, 80 parts of ethyleneoxide and tetrahydrofuran copolyether polyol with a molecular weight of 2000, and 10 parts of polycaprolactone polyol with a molecular weight of 200 50 parts, 50 parts of flame-retardant polyester polyol with a molecular weight of 1500, 18 parts of ethylene oxide and tetrahydrofuran copolyether polyol with a molecular weight of 500 were added to the reaction kettle, and the temperature was raised to 85 ° C and stirred for 3.5 hours;
[0072] (2) Chain extension reaction: add 7.5 parts of hydroxysulfonate with a molecular weight of 300, add 7.5 parts of sulfamate with a molecular weight of 360, and react at 86° C. for 4 hours;
[0073] (3) Emulsification reaction: Add 315 parts of deionized water, quickly disperse, and then keep it at 60°C for 1 hour;
[0074] (4) Chain extension reaction: Control temperature at 6...
[0081] (1) Prepolymerization reaction: 43 parts of isophorone diisocyanate, 35 parts of hydrogenated MDI, 55 parts of ethylene oxide and tetrahydrofuran copolyether polyol with a molecular weight of 3000, and polycaprolactone polyol with a molecular weight of 200 8 60 parts, 60 parts of flame retardant polyester polyol with a molecular weight of 2500, 10 parts of ethylene oxide and tetrahydrofuran copolyether polyol with a molecular weight of 400 were added to the reaction kettle, and the temperature was raised to 87 ° C and stirred for 3.5 hours;
[0082] (2) Chain extension reaction: add 15 parts of hydroxysulfonate with a molecular weight of 300, add 3 parts of sulfamate with a molecular weight of 360, and react at 86° C. for 3.5 hours;
[0083] (3) Emulsification reaction: add 285 parts of deionized water, quickly disperse, and then keep warm at 60°C for 1 hour;
[0084] (4) Chain extension reaction: control the temperature at 55°C, ...
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Abstract
The invention relates to a water-based waterproof moisture-permeable flame-retardant polyurethane film for textiles and a preparation method thereof. The preparation method comprises the following steps: preparing an emulsion from isophorone diisocyanate, hydrogenated MDI, oxirane-tetrahydrofuran copolyether polyol, polycaprolactonepolyol, flame-retardant polyesterpolyol, another oxirane-tetrahydrofuran copolyether polyol, a chain extender, a small molecular chain extender, organosilicon polyol and deionized water through a prepolymerization reaction, a chain extension reaction, an emulsification reaction, a chain extension reaction and a capping reaction; and compounding the emulsion with a defoamer, a wetting and leveling agent, a slip agent, a thickener, a delustering agent, a releaseagent and a cross-linking agent to prepare a film adhesive, coating release paper or OPP with the film adhesive, and carrying out drying to obtain a water-based moisture-permeable flame-retardant polyurethane film product for textiles. The water-based moisture-permeable flame-retardant polyurethane film is soft, elastic, dry and comfortable, and is good in moisture permeability, good in flame retardance, good in cold resistance, high in water pressure resistance, large in breaking strength, good in washing fastness and high in elongation at break.
Description
technical field [0001] The invention relates to a water-based moisture-permeable and flame-retardant polyurethane film for textiles and a preparation method; the polyurethane emulsion film is soft, elastic and dry, and simultaneously achieves good moisture permeability, good flame retardancy, good cold resistance, high water pressure resistance, High breaking strength, high elongation at break, good washing fastness. [0002] Use release paper or OPP to make film products, and use hot-melt adhesive to attach it to textile fabrics. [0003] It is mainly used in the treatment of outdoor clothing, industrial clothing, tents, car interiors, packaging bags and other fabrics to improve the moisture permeability and flame retardancy of the fabric. Background technique [0004] Polyurethane products need to add flame retardants to achieve flame retardancy. [0005] At present, the waterproof, moisture-permeable and flame-retardant properties of polyurethane products are achieved b...
Claims
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Application Information
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