Flexible conductive heat-generating carbon-based flame-retardant composite fabric and preparation method thereof

A flame-retardant composite, flexible and conductive technology, applied in heating/cooling fabrics, electric heating devices, ohmic resistance heating, etc., can solve the problems of reduced electrothermal conversion rate, flammability, low production rate, etc., and achieve high thermal efficiency and low resistance Effect

A flame-retardant composite, flexible and conductive technology, applied in heating/cooling fabrics, electric heating devices, ohmic resistance heating, etc., can solve the problems of reduced electrothermal conversion rate, flammability, low production rate, etc., and achieve high thermal efficiency and low resistance Effect

CN110284322AInactive Publication Date: 2019-09-27深圳市尼森实业有限公司
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  • Flexible conductive heat-generating carbon-based flame-retardant composite fabric and preparation method thereof
  • Flexible conductive heat-generating carbon-based flame-retardant composite fabric and preparation method thereof
  • Flexible conductive heat-generating carbon-based flame-retardant composite fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for preparing a flexible conductive and heat-generating carbon-based flame-retardant composite fabric, specifically comprising the following steps:

[0027] (1) Preparation of carbon fiber precursor fabric, polyacrylonitrile filaments are twisted and spun so that they are arranged biaxially in the direction of +40 degrees and -40 degrees (such as figure 1 ), the weaving method can also be a conventional weaving, knitting or non-woven process;

[0028] (2) Preparation of carbon fiber flame retardant fabric, the carbon fiber precursor fabric made in step (1) is passed through the phosphate (mixed solution of ammonium phosphate and ammonium dihydrogen phosphate, mass ratio is 0.5) solution equipped with 10% concentration at a constant speed The preprocessor is subjected to padding and drying treatment at a drying temperature of 120°C for 3 minutes;

[0029] (3) Pre-oxidize the pre-oxidized carbon fiber precursor fabric at 450°C for 30 minutes, and perform anaerob...

Embodiment 2

[0035] A method for preparing a flexible conductive and heat-generating carbon-based flame-retardant composite fabric, specifically comprising the following steps:

[0036] (1) The preparation of carbon fiber precursor fabrics, viscose filaments are twisted, twisted and spun; it is formed by biaxial arrangement in the direction of +30 degrees and -30 degrees;

[0037] (2) The preparation of carbon fiber flame-retardant fabric, the carbon fiber precursor fabric that step (1) is made passes through the phosphate (mixed solution of ammonium phosphate and ammonium dihydrogen phosphate, mass ratio is 0.4) solution that is equipped with 5% concentration The preprocessor is subjected to padding and drying treatment at a drying temperature of 100°C for 2.5 minutes;

[0038] (3) Pre-oxidize the pre-oxidized carbon fiber precursor fabric at 300°C for 20 minutes, and perform anaerobic (pure nitrogen) low-temperature carbonization on the pre-oxidized carbon fiber precursor fabric at 1000°...

Embodiment 3

[0044] A method for preparing a flexible conductive and heat-generating carbon-based flame-retardant composite fabric, specifically comprising the following steps:

[0045] (1) The preparation of carbon fiber precursor fabrics, the polyacrylonitrile filaments are cut into short filaments with a single fiber length of not less than 5cm, and then spinning and twisting, so that it is biaxial in the direction of +20 degrees and -20 degrees to arrange;

[0046] (2) The preparation of carbon fiber flame-retardant fabric, the carbon fiber precursor fabric that step (1) is made passes through the phosphate (mixed solution of ammonium phosphate and ammonium dihydrogen phosphate, ratio is 0.2) aqueous solution that 1% concentration is housed The preprocessor is subjected to padding and drying treatment at a drying temperature of 90°C for 2 minutes;

[0047] (3) Pre-oxidize the pre-oxidized carbon fiber precursor fabric at 200°C for 10 minutes, and perform anaerobic (pure nitrogen) low-...

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 discloses a flexible conductive heat-generating carbon-based flame-retardant composite fabric and a preparation method thereof and belongs to the technical field of preparation of conductive materials. The method comprises the following steps that a carbon fiber original filament is woven into a carbon fiber original filament fabric; the carbon fiber original filament fabric is sequentially subjected to pad-drying treatment, pre-oxidation treatment, oxygen-free low-temperature carbonization and oxygen-free high-temperature carbonization to prepare a carbon fiber flame-retardant fabric; the carbon fiber flame-retardant fabric is immersed in a graphene / carbon nanotube mixture liquid and then subjected to high-temperature and high-pressure padding and drying treatment to obtain the composite fabric. By placing graphene and carbon nanotubes in an organic solvent for mixing separately, the carbon nanotubes can be well dispersed in a graphene-based body without surface modification or modification of the carbon nanotubes, the conductivity of the heat-generating composite carbon fiber is greatly enhanced, and favorable conditions are provided for further application of the flexible conductive heat-generating carbon-based flame-retardant fabric.

Description

technical field [0001] The invention belongs to the technical field of preparation of conductive and flame-resistant materials, and in particular relates to a flexible conductive and heating carbon-based flame-retardant composite fabric and a preparation method thereof. Background technique [0002] At present, there are mainly two types of common electric heating materials. One is alloy electric heating materials, which are mainly made of metal alloy materials such as copper and nickel. Due to its long development time, mature and stable technology, and low cost, alloy electric heating materials have a large market share, but they are not as soft as fabrics, and there are certain restrictions in the use process. Electrothermal materials are subject to corrosion, aging, and polarity weakening. At the same time, their driving voltage is usually high, which will generate open flames and pose a certain safety hazard. The other type is carbon electrothermal materials. As a new ...

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

Patent Timeline
27 Sep 2019
Publication
CN110284322A
IPC
D06M11/74; D06M15/37; D06C7/04; D06B3/18; H05B3/14; H05B3/34; D06M101/40
CPC
D06B3/18; D06C7/04; D06M11/74; D06M15/37; D06M2101/40; H05B3/145; H05B3/34
Inventors
邱一民; 付甲