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Preparation method of stretchable electric heating fabric

An electric heating and fabric technology, applied in the field of materials, can solve the problems of difficulty in preparing the coating slurry for electric heating fabrics, poor stretchability, low bonding strength between conductive additives and fabrics, etc., and achieves improved electric heating performance and stable performance. , the effect of easy large-scale production

Pending Publication Date: 2022-05-13
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing stretchable electric heating fabrics, which aims to solve the problems of the existing electric heating fabric coating slurry preparation difficulties, low bonding strength between conductive additives and fabrics, and poor stretchability. Stretchable electric heating fabric with high energy efficiency ratio finally obtained

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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  • Preparation method of stretchable electric heating fabric
  • Preparation method of stretchable electric heating fabric
  • Preparation method of stretchable electric heating fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031]The graphene aqueous phase dispersion with a mass ratio of graphene and sericin protein of 1:1 was selected as the dispersion medium of carbon nanotubes. Add 50 g of carbon nanotube powder into 2 L of aqueous dispersion with a graphene concentration of 200 mg / mL for simple stirring to fully wet the carbon nanotube powder to obtain a premixed dispersion. At a rotational speed of 5000 rpm, the obtained premixed dispersion was sand-milled for 0.5 hours to obtain a graphene / carbon nanotube composite aqueous slurry with uniform dispersion of carbon nanotubes, and its electrical conductivity was 32000 S / m. The elastic blended fabric containing 0.5 wt% spandex and 99.5 wt% polyester fiber was soaked in 90% tannic acid aqueous solution, taken out and dried to obtain a tannic acid-coated fabric. The obtained graphene / carbon nanotube composite aqueous slurry is evenly coated on the surface of the tannic acid-coated fabric, and the fabric coated with graphene and carbon nanotube na...

Embodiment 2

[0033] The graphene aqueous phase dispersion liquid with a mass ratio of graphene and polydiallyldimethylammonium chloride of 1:1 was selected as the dispersion medium of carbon nanotubes. Add 50 g of carbon nanotube powder into 2 L of aqueous dispersion with a graphene concentration of 150 mg / mL for simple stirring to fully wet the carbon nanotube powder to obtain a premixed dispersion. At a speed of 100 rpm, the obtained premixed dispersion was subjected to planetary ball milling for 12 hours to obtain a graphene / carbon nanotube composite aqueous slurry with uniform dispersion of carbon nanotubes, and its conductivity was 11000 S / m. Soak an elastic blended fabric containing 10 wt% spandex and 90 wt% nylon in 70% tannic acid aqueous solution, take it out and dry it to obtain a tannic acid-coated fabric. The obtained graphene / carbon nanotube composite aqueous slurry is evenly coated on the surface of the tannic acid-coated fabric, and the fabric coated with graphene and carbon...

Embodiment 3

[0035] The graphene aqueous phase dispersion liquid with a mass ratio of graphene and polydiallyldimethylammonium chloride of 1:1 was selected as the dispersion medium of carbon nanotubes. Add 50 g of carbon nanotube powder into 2 L of aqueous dispersion with a graphene concentration of 100 mg / mL for simple stirring to fully wet the carbon nanotube powder to obtain a premixed dispersion. At a rotational speed of 2000 rpm, the obtained premixed dispersion was sand-milled for 2 hours to obtain a graphene / carbon nanotube composite aqueous slurry with uniform dispersion of carbon nanotubes, and its electrical conductivity was 19800 S / m. The elastic blended fabric containing 50wt% spandex and 50wt% cotton is soaked in 15% tannic acid aqueous solution, taken out and dried to obtain a tannic acid-coated fabric. The obtained graphene / carbon nanotube composite aqueous slurry is evenly coated on the surface of the tannic acid-coated fabric, and the fabric coated with graphene and carbon...

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 belongs to the technical field of materials, and particularly relates to a preparation method of a stretchable electric heating fabric. The waterproof elastic fabric has the essential characteristics that the composite slurry containing high-concentration carbon nano components can be tightly adsorbed on the surface of the internal fibers of the elastic fabric under the mediation of tannic acid, and the slurry cannot be agglomerated in a woven gap structure of the fabric; the obtained carbon nano-coated fabric not only has good conductivity and electric heating performance, but also can maintain the original breathable gap structure and stretchability. The preparation process does not need to use any organic solvent, and is green, environment-friendly, low in cost and easy for large-scale production.

Description

Technical field [0001] The invention relates to a preparation method of stretchable electric heating fabric, and belongs to the field of material technology. Background technique [0002] Traditional thermal clothing is usually bulky and heavy, and has poor thermal insulation effect. It is a passive type of warmth. Electrically heated clothing can rely on external energy to generate heat, and can adjust the temperature to provide the heat needed by the human body, which is an active type of warmth preservation. Combining traditional fabrics with carbon-based conductive materials, metal conductive yarns, and conductive polymers is a method that can not only give traditional fabrics electric heating properties, but also retain their breathability and flexibility. The introduction of metal conductive yarn can greatly improve the electrical heating performance of fabrics, but its density is high and the requirements for textile equipment are also high. Conductive polymers can ...

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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IPC IPC(8): D06M11/74D06M13/238D06M15/564D06M15/15D06M15/356D06M15/61
CPCD06M11/74D06M13/238D06M15/564D06M15/15D06M15/3562D06M15/61
Inventor 卢红斌潘绍学胡波王乐泉张佳佳翟志敏
Owner FUDAN UNIV
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