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Flame-retardant polyurethane film and preparation method thereof

A technology of polyurethane film and polyurethane resin, applied in the field of flame-retardant polyurethane film and its preparation, can solve the problems of waterproof, reduced air permeability, improved fire resistance of polyurethane film, reduced polyurethane film, etc., and achieves good waterproof and air permeability. Effect

Inactive Publication Date: 2014-07-16
盐城金桂源新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these fillers cannot significantly improve the fire resistance of polyurethane films, and at the same time reduce other properties of polyurethane films, such as the reduction of waterproof and air permeability

Method used

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  • Flame-retardant polyurethane film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035]Example 1: The fireproof polyurethane resin and 0.4% of ZBJ-002 and 0.4% of ZBJ-003 based on the mass of the fireproof polyurethane resin were fully mixed under the stirring of a mixer with a rotation speed of 1000rpm to form a mixed resin. Add 1% OK-412 matting powder based on the mass of fire-resistant polyurethane resin into an organic solvent composed of 15% butanone, 25% toluene and 25% N,N-dimethylformamide based on the mass of fire-resistant polyurethane resin, A mixed solution was formed under the stirring of a high-speed stirrer at 2500 rpm. According to the addition amount of 30%, 30% and 40%, the mixed liquid is added to the mixed resin in three times and stirred by a mixer at 200 rpm to obtain glue. Next, put the glue into a foam maker, and foam for a certain period of time under the conditions of a foaming ratio of 4 and a flow rate of 8g / s to obtain a water-based polyurethane foam. Then, the water-based polyurethane foam was coated on the release paper, pl...

Embodiment 2

[0036] Example 2: The fireproof polyurethane resin and 0.6% of ZBJ-002 and 0.6% of ZBJ-003 based on the mass of the fireproof polyurethane resin were fully mixed under the stirring of a mixer with a rotation speed of 1200rpm to form a mixed resin. Add 2% OK-412 matting powder based on the mass of fire-resistant polyurethane resin into an organic solvent composed of 20% methyl ethyl ketone, 15% toluene and 35% N,N-dimethylformamide based on the mass of fire-resistant polyurethane resin , form a mixed solution under the stirring of a high-speed stirrer at 3000rpm. According to the addition amount of 30%, 30% and 40%, the mixed solution was added to the mixed resin in three times and stirred by a mixer at 250rpm to obtain glue. Next, put the glue into a foam maker, and foam for a certain period of time according to the conditions of a foaming ratio of 4.5 and a flow rate of 9g / s to obtain a water-based polyurethane foam. Then, the water-based polyurethane foam was coated on the ...

Embodiment 3

[0037] Example 3: The fireproof polyurethane resin, 0.45% of ZBJ-002 and 0.4% of ZBJ-003 based on the mass of the fireproof polyurethane resin were fully mixed under the agitation of a mixer with a rotation speed of 1300rpm to form a mixed resin. Add 1% OK-412 matting powder based on the mass of fire-resistant polyurethane resin into an organic solvent composed of 20% methyl ethyl ketone, 15% toluene and 35% N,N-dimethylformamide based on the mass of fire-resistant polyurethane resin , form a mixed solution under the stirring of a high-speed mixer at 3100rpm. According to the addition amount of 30%, 30% and 40%, the mixed solution was added to the mixed resin in three times and stirred by a mixer at 300 rpm to obtain glue. Next, put the glue into a foam maker, and foam for a certain period of time according to the conditions of a foaming ratio of 5 and a flow rate of 10 g / s to obtain a water-based polyurethane foam. Then, the water-based polyurethane foam was coated on the re...

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Abstract

The invention discloses a flame-retardant polyurethane film and a preparation method thereof. The polyurethane film comprises fireproof polyurethane resin, 1%-2% (based on the weight of the fireproof polyurethane) of extinction powder, 0.4%-0.6% of flatting agent, 0.4%-0.6% of peeling aid and organic solvent, wherein the fireproof polyurethane resin is mainly a polymerization product of polyalcohol, polyisocyanates and polytdricalocholphosphate ester. The polyurethane film disclosed by the invention contains fireproof polyurethane resin, extinction powder, flatting agent, and peeling aid, is mainly obtained by polymerizing the polyalcohol, polyisocyanates and polytdricalocholphosphate ester, wherein the polytdricalocholphosphate ester is directly bonded with a polyurethane molecular chain by hydroxyl, and the contained phosphate group achieves flame-retardant effect, so that damages on film performance due to migration of flame retardant molecules after the polyurethane is directly mixed with the flame retardant physically are avoided. By optimizing proportions of various auxiliaries, the film has better waterproof performance and gas permeability.

Description

technical field [0001] The invention relates to the technical field of polyurethane films, in particular to a flame-retardant polyurethane film and a preparation method thereof. Background technique [0002] In recent years, polyurethane films have been more and more used in the preparation of ready-made garments and fashions. The garments made of breathable polyurethane film materials not only have breathing function, but also can be antistatic; polyurethane films are used in sportswear and products to make diving suits, swimming clothing, rhythm clothing and air drop clothing, inflatable water beds, ball liners, kayaks, life buoys and other fabrics and inner materials. The newly developed shape-memory polyurethane film has good crystallinity, and the blocks are aggregated into micro-domains to act as physical cross-linking points to control the shape fixation and recovery of shape-memory polyurethane. The shape-memory temperature of these shape-memory polyurethanes is set ...

Claims

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Application Information

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IPC IPC(8): C08L75/06C08J5/18C08G18/32C08G18/44
Inventor 巫永裕
Owner 盐城金桂源新材料科技有限公司
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