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Halogen-free flame-retardant polyurethane resin slurry for leather and application thereof

A technology of polyurethane resin and wet-process polyurethane, which is applied in the field of polyurethane resin slurry for superfine fiber synthetic leather, can solve the problems of high price, high cost of flame retardancy, loss of practical application value, etc., and achieve the effect of little dyeing effect and soft hand feeling Effect

Active Publication Date: 2016-01-06
江苏华峰超纤材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is also a Chinese patent publication 201410839415.8 for a flame-retardant water-based polyurethane coating, used in conjunction with zinc oxide, hexametaphosphoric acid, etc., and the dosage is very low, the flame-retardant effect is not obvious, and there is no application literature in the field of synthetic leather
Moreover, since dialkyl aluminum phosphinate is very expensive, the flame retardant cost is too high to lose practical application value if used alone

Method used

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  • Halogen-free flame-retardant polyurethane resin slurry for leather and application thereof
  • Halogen-free flame-retardant polyurethane resin slurry for leather and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Mix leather with wet-process polyurethane resin, water-insoluble ammonium polyphosphate, aluminum dialkylphosphinate, surfactant, color paste, coupling agent and solvent to form a wet-process impregnation slurry. The components of the slurry are :

[0026] Polyester polyether copolymerized polyurethane resin…………100 parts

[0027] Water-insoluble ammonium polyphosphate…………………10 parts

[0028] Aluminum diethylphosphinate……………………10 parts

[0029] Surfactant JS-MS…………………… 0.3 parts

[0030] Solvent DMF………………………… 30 parts;

[0031] Among them: the water-insoluble ammonium polyphosphate is the APP-OM ammonium polyphosphate product of Zhenjiang Xingxing Flame Retardant Co., Ltd. with a degree of polymerization n=1500 and an average particle size of 6-7.5 μm;

[0032] The total solid weight portion of the flame-retardant polyurethane resin slurry for the leather of this component is 33.27%; With nylon 6 and polyethylene as raw material, the sea-island type short fiber is ir...

Embodiment 2

[0034] Mix leather with wet-process polyurethane resin, water-insoluble ammonium polyphosphate, aluminum dialkylphosphinate, surfactant, color paste, coupling agent and solvent to form a wet-process impregnation slurry. The components of the slurry are :

[0035] Polyether polyurethane resin……………………100 parts

[0036] Water-insoluble ammonium polyphosphate………………… 22 parts

[0037] Aluminum ethyl propyl phosphinate………………… 28 parts

[0038] Surfactant JS-MS…………………… 0.5 parts

[0039] Solvent DMF……………………… 150 parts

[0040] Silane coupling agent……………………… 0.7 parts

[0041] Polyethylene wax dispersant…………………… 0.7 parts;

[0042] Among them: the water-insoluble ammonium polyphosphate has a degree of polymerization n=2500 and an average particle size of 6-7.5 μm;

[0043] The total solid weight portion of the flame-retardant polyurethane resin slurry for the leather of this component is 26.50%; With nylon 6 and polyethylene as raw material, the sea-island type short fiber is iron...

Embodiment 3

[0045] Mix leather with wet-process polyurethane resin, water-insoluble ammonium polyphosphate, aluminum dialkylphosphinate, surfactant, color paste, coupling agent and solvent to form a wet-process impregnation slurry. The components of the slurry are :

[0046] Polyester-polycarbon-copolymerized polyurethane resin…………100 parts

[0047] Water-insoluble ammonium polyphosphate…………………15 parts

[0048] Aluminum dipropylphosphinate……………………30 parts

[0049] Surfactant JS-MS…………………… 0.9 parts

[0050] Surfactant JS-BT…………………… 0.3 parts

[0051] Solvent DMF………………………… 90 parts

[0052] Titanate coupling agent…………………… 1.5 parts

[0053] Black dye water……………………… 4 parts;

[0054] Among them: the water-insoluble ammonium polyphosphate is the APP-0S ammonium polyphosphate product of Zhenjiang Senhua Flame Retardant Engineering Technology Co., Ltd. with a degree of polymerization n≥1500 and an average particle size of 60-70 μm;

[0055] The total solid weight portion of the flame-re...

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Abstract

The invention discloses halogen-free flame-retardant polyurethane resin slurry for leather and application thereof. The halogen-free flame-retardant polyurethane resin slurry for leather is prepared from, by weight, 100 parts of wet-process polyurethane resin for leather, 20-50 parts of composite flame retardant, 0.3-1.2 parts of surfactant and 30-150 parts of solvent. The composite flame retardant is a mixture of water-insoluble ammonium polyphosphate and dialkyl aluminum phosphinic acid, and the mass ratio of water-insoluble ammonium polyphosphate to dialkyl aluminum phosphinic acid is 1:0.5-2.0. Powdery ash generated after combustion of prepared base cloth wraps a non-combusted part to form a flame-retardant carbon layer, the flame retardancy reaches the vertical combustion level V0 as is determined according to a vertical combustion method in GB / T 2408-2008, a spline dies out once away from fire, smoke is white and free of undesirable odor, no molten drop is generated, the flame-retardant effect is better than that of a product prepared from dialkyl aluminum phosphinic acid only, the price can be lowered by about 50%, and the aim of actual industrial application is achieved.

Description

technical field [0001] The invention relates to a polyurethane resin slurry for ultrafine fiber synthetic leather, in particular to an environment-friendly flame-retardant wet process polyurethane resin slurry for ultrafine fiber synthetic leather, and its application in ultrafine fiber polyurethane synthetic leather . Background technique [0002] The application of microfiber polyurethane synthetic leather (referred to as microfiber leather) in the field of automotive interiors includes high-end automotive steering wheel leather, high-end automotive seat leather, high-end automotive door panel leather, and high-end automotive dashboard leather. market space. Flame retardant performance is a key feature of automotive interior products, and each OEM has listed this performance as a mandatory performance requirement for automotive interior products. [0003] For the flame retardant treatment of microfiber leather, the known mainstream technology at home and abroad is to add...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14
Inventor 王贺玲段伟东潘利军张其斌孙向浩马宁吴勇徐斌马玲玲
Owner 江苏华峰超纤材料有限公司
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