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A kind of self-extinguishing flame-retardant cotton fabric and its preparation method and application

A flame-retardant cotton, self-extinguishing technology, applied in textiles and papermaking, plant fibers, fiber processing, etc., can solve the problems of poor flame retardant performance and poor thermal stability of cotton fabrics, reduce production costs, and solve poor thermal stability. , the effect of saving raw materials

Active Publication Date: 2021-08-31
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a self-extinguishing flame-retardant cotton fabric and its preparation method and application, which overcomes the defects of poor thermal stability and flame-retardant performance of cotton fabric and avoids the defects of traditional flame-retardant treatment, and realizes green preparation, The purpose of energy saving, environmental protection and high efficiency flame retardant

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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  • A kind of self-extinguishing flame-retardant cotton fabric and its preparation method and application
  • A kind of self-extinguishing flame-retardant cotton fabric and its preparation method and application
  • A kind of self-extinguishing flame-retardant cotton fabric and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Cotton fabric (95g / m 2 ), and then adopt the method of alternate spraying to apply 5wt% sodium alginate aqueous solution (pH=9) and 2wt% ammonium polyphosphate aqueous solution (pH=9) with 1wt% silane coupling agent aqueous solution (pH=4) Deposit on the surface of cotton fabric layer by layer; the amount of each spray solution is 10 ml / square meter, and the cotton fabric is air-dried or dried, and the process is repeated, with silane coupling agent / sodium alginate / silane coupling agent / polyphosphoric acid The ammonium four-layer is a flame-retardant unit layer until five flame-retardant unit layers are deposited on the surface of the cotton fabric to obtain a coated cotton fabric.

[0032] Microstructure characterization: the SEM figure of the pure cotton fabric of the present embodiment and coated cotton fabric, as figure 1 As shown, it can be seen that the surface of the fiber before finishing is smooth and clean, while the surface of the cotton fabric after finish...

Embodiment 2

[0038] Cotton fabric (95g / m 2), and then alternately spraying 5wt% sodium alginate solution (pH=9) and 2wt% ammonium polyphosphate solution (pH=9) with 1wt% silane coupling agent solution (pH=4) Deposit on the surface of cotton fabric layer by layer; the amount of each spray solution is 10 ml / square meter, and the cotton fabric is air-dried or dried, and the process is repeated, with silane coupling agent / ammonium polyphosphate / silane coupling agent / alginic acid The four layers of sodium are one flame retardant unit layer, until five flame retardant unit layers are deposited on the surface of the cotton fabric to obtain the coated cotton fabric.

[0039] Microstructure characterization: It can be seen that the surface of the fiber before coating treatment is smooth and clean, while the surface of the cotton fabric after finishing is rough, indicating that the coating is successfully deposited on the surface of the fabric.

[0040] Flame retardant performance test: the thermal...

Embodiment 3

[0045] Cotton fabric (120g / m 2 ), and then alternately spraying the 3wt% sodium alginate solution (pH=9) and the 1wt% ammonium polyphosphate solution (pH=9) with the 5wt% silane coupling agent solution (pH=4) Deposit layer by layer on the surface of cotton fabric; the amount of each spray solution is 15 ml / square meter, and the cotton fabric is air-dried or dried, and the process is repeated, with silane coupling agent / sodium alginate / silane coupling agent / polyphosphoric acid The ammonium four-layer is a flame-retardant unit layer, until 10 flame-retardant unit layers are deposited on the surface of the cotton fabric to obtain a coated cotton fabric.

[0046] Microstructure characterization: It can be seen that the surface of the fiber before coating treatment is smooth and clean, while the surface of the cotton fabric after finishing is rough, indicating that the coating is successfully deposited on the surface of the fabric.

[0047] Flame retardant performance test: the th...

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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Abstract

The invention relates to a self-extinguishing flame-retardant cotton fabric and its preparation method and application. There are 5 to 20 flame-retardant unit layers deposited on the surface of the cotton fabric; the flame-retardant unit layer is silane coupling agent / sodium alginate / silane Four layers of coupling agent / ammonium polyphosphate or four layers of silane coupling agent / ammonium polyphosphate / silane coupling agent / sodium alginate. The preparation method includes: first treating the cotton fabric with a silane coupling agent solution, then alternately spraying sodium alginate solution and ammonium polyphosphate solution with the silane coupling agent, depositing layer by layer on the surface of the cotton fabric to form a flame-retardant unit layer, repeating Just do it. The invention is environmentally friendly, simple in operation and saves raw materials; the coated cotton fabric has a high char formation rate and can be self-extinguished when away from fire; has strong application prospects and is suitable for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of textile functional finishing, and in particular relates to a self-extinguishing flame-retardant cotton fabric and a preparation method and application thereof. Background technique [0002] Cotton fabric, as a widely used natural fabric, has the advantages of its own thermal insulation, ultra-high air permeability, fast moisture absorption, comfort and softness, and is widely used in clothing production, home textiles and other industrial products. But the ignition point and oxygen index of cotton fabric are low (limiting oxygen index is only 18.0%), it is very easy to burn and cause fire in the air, so it is necessary to enhance the flame retardancy of cotton fabric. Usually, the flame retardant with flame retardant effect is modified by grafting or post-treatment to achieve the purpose of flame retardant. For example, the Chinese invention patent CN105386305A grafts triazine flame retardants onto cotto...

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 Patents(China)
IPC IPC(8): D06M13/50D06M15/13D06M11/72D06M23/00D06M101/06
Inventor 秦宗益曾凡鑫陈园余马兆霞刘建敏蒋国平
Owner DONGHUA UNIV
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