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Preparation method for fabric flame-retardant coating material

A flame retardant coating and fabric technology, applied in the field of flame retardant coating materials, can solve problems such as poor water resistance, decreased fabric quality, and use restrictions, and achieve the effect of easy use.

Active Publication Date: 2016-08-03
SUZHOU NAJIN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Fabrics are usually functionalized with flame retardancy, and ammonium polyphosphate is added as a halogen-free flame retardant, but the material has poor water resistance; there are also flame-retardant coatings prepared by compounding decabromodiphenyl ether and adhesive, but currently Since decabromodiphenyl ether is banned by the Stockholm Convention, its use will be limited in the future; now, decabromodiphenylethane and antimony oxide are often blended with adhesives to prepare flame-retardant coatings, but this material is likely to cause fabric hair Whitening and reducing the hand feel of the fabric surface leads to a decline in fabric quality, so although this system can be used, it is facing a huge demand for improvement

Method used

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Embodiment 1 adds 30% of its weight toluene and 20% reactive flame retardant N in liquid polyurethane, N-bis (2-hydroxyethyl) aminomethyl phosphonic acid dimethyl ester is mixed and stirred evenly, then Slowly add 5% isocyanate by weight of liquid polyurethane to the mixed solution under rapid stirring conditions, and continue stirring for 15 minutes to obtain a flame-retardant polyurethane coating material for fabrics, which is coated on polyester fabrics, and the coating quality after drying is 100%. When the weight is 10%, the fabric sample has a burning length of 8cm and a limiting oxygen index of 24.3% in the UL94 test.

Embodiment 2

[0009] Embodiment 2 Add 40% of its weight toluene and 30% reactive flame retardant N in the liquid polyurethane, N-bis (2-hydroxyethyl) aminomethyl phosphonic acid dimethyl ester is blended and stirred evenly, then Slowly add 6% isocyanate by weight of liquid polyurethane to the mixed solution under rapid stirring conditions, and continue to stir for 30 minutes to obtain a flame-retardant polyurethane coating material for fabrics, which is coated with polyester fabrics, and the coating quality after drying is fabric When the weight is 15%, the fabric sample has a burning length of 6cm and a limiting oxygen index of 24.8% in the UL94 test.

Embodiment 3

[0010] Embodiment 3 adds 50% of its weight toluene and 25% reactive flame retardant N in liquid polyurethane, N-bis (2-hydroxyethyl) aminomethyl phosphonic acid dimethyl ester blends and stirs evenly, then Slowly add 5% isocyanate by weight of liquid polyurethane to the mixed solution under rapid stirring conditions, and continue stirring for 10 minutes to obtain a flame-retardant polyurethane coating material for fabrics, which is coated on polyester fabrics. When the weight is 8%, the fabric sample has a burning length of 9.5cm and a limiting oxygen index of 24.1% in the UL94 test.

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Abstract

The invention relates to a preparation method for an in-situ flame-retardant adhesive coating material. According to the preparation method, liquid polyurethane and a reactive flame retardant N,N-bis(2-ethoxy)dimethyl aminomethylphosphonate are subjected to reactive grafting to form the in-situ flame-retardant adhesive coating material. The material prepared through the method can be directly used for coating of a fabric coating, and after drying, fabric can have a good flame-retardant property.

Description

technical field [0001] The invention relates to a method for forming a flame-retardant coating material for fabrics by reacting and grafting flame-retardant components and polyurethane molecules, and belongs to the technical field of functional coatings. Background technique [0002] Fabrics are widely used in many fields of social production and life, and related fabrics need to be treated with flame retardant in fields such as tents and work clothes. Due to the relatively high cost of using in-situ reaction on fabrics or the use of flame-retardant fibers to make fabrics, the product performance is poorly adjustable, so it is a convenient and economical way to perform flame-retardant functionalization on fabrics. . [0003] Fabrics are usually functionalized with flame retardancy, and ammonium polyphosphate is added as a halogen-free flame retardant, but the material has poor water resistance; there are also flame-retardant coatings prepared by compounding decabromodipheny...

Claims

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/579C08G18/32D06M101/32
CPCC08G18/3889D06M15/579D06M2101/32D06M2200/30
Inventor 刘伟建钱立军
Owner SUZHOU NAJIN NEW MATERIAL TECH CO LTD
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