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Water-based graphene flame-retardant PTC conductive paste, preparation method thereof and flexible conductive heating cloth

A water-based graphene, conductive paste technology, applied in flame-retardant fibers, textiles and papermaking, improved hand-feeling fibers, etc. question

Pending Publication Date: 2021-04-02
肃宁县中原纺织有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Some small products such as electric heating warm clothes, waist protectors and knee protectors currently on the market are made of conductive heating cloth woven with metal resistance wire and cotton thread, polyimide film, etc., which have poor rubbing resistance and are not Flame-resistant self-limiting temperature, so there is a risk of overheating due to malfunction or extreme use
In addition, for large-scale products such as electric mattresses, electric blankets, and electric protective covers, because most of them use 220V AC as the power supply and do not have the function of flame-retardant self-limiting temperature, these products lack safety and affect the service life of the products. The key to product performance lies in the selection and preparation of the heating element.

Method used

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  • Water-based graphene flame-retardant PTC conductive paste, preparation method thereof and flexible conductive heating cloth

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preparation example Construction

[0046] The present invention also provides a preparation method of the water-based graphene flame-retardant PTC conductive paste described in the above-mentioned technical scheme, comprising the following steps:

[0047] Mix the water-based flexible resin with water to obtain a resin solution;

[0048] mixing the resin solution, flame retardant and PTC functional components to obtain a dispersion;

[0049] The dispersion liquid, dispersant, auxiliary agent and conductive filler are mixed and ground to obtain the water-based graphene flame-retardant PTC conductive paste.

[0050] In the invention, the water-based flexible resin is mixed with water to obtain a resin solution. In the present invention, the mixing is preferably carried out under stirring conditions, the stirring speed is preferably 1000-1500 rpm, more preferably 1200-1400 rpm; the stirring time is preferably 5-10 min, more preferably 8-9 min .

[0051] After obtaining the resin solution, the present invention m...

Embodiment 1

[0069] Add 11.2g of flexible water-based acrylic resin, 3.8g of flexible water-based polyurethane and 40g of deionized water into a high-speed mixer, and stir for 8min at a speed of 1200rpm to obtain a uniform resin solution;

[0070] Add 2g of flame retardant PN-1, 0.8g of flame retardant PN-2, 5g of polycaprolactone and 5g of polyethylene into the above resin solution, stir at 1500rpm for 10min to obtain a dispersion;

[0071] Transfer the above dispersion into a sand mill, add 4.5g BYK9076, 2g anionic polyacrylamide, 0.5g leveling agent and 0.5g film-forming aid respectively, and add 12g conductive filler in 3 times, the conductive filler It consists of 2g of graphene and 10g of conductive carbon black, and is ground at a speed of 850 rpm until the average particle size is 1.5 μm to obtain a water-based graphene flame-retardant PTC conductive paste.

[0072] Arrange cotton with a size of 20cm×15cm in the water-based graphene flame-retardant PTC conductive paste, soak for 30...

Embodiment 2

[0077] Add 13.3g of flexible water-based acrylic resin, 2.7g of flexible water-based polyurethane and 40g of deionized water into a high-speed mixer, and stir for 10min at a speed of 1350rpm to obtain a uniform resin solution; mix 0.2g of dimethyl methylphosphonate, 1.8g Flame retardant PN-1, 1.2g flame retardant PN-2, 4g polyethylene, 4g maleic anhydride grafted polyethylene and 4g polypropylene were added to the above resin solution, stirred at 1650rpm for 8min to obtain a dispersion;

[0078] Transfer the above dispersion into a sand mill, add 3g of anionic polyacrylamide, 4g of BYK9076, 0.5g of defoamer 901W and 0.2g of thickener, and add 15g of conductive filler in 4 times. 3g of graphene, 10g of conductive carbon black and 2g of nano-graphite were ground at a speed of 1500 rpm until the average particle size was 0.9 μm to obtain a water-based graphene flame-retardant PTC conductive paste.

[0079]Arrange polyester with a size of 20cm×15cm in the water-based graphene flam...

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Abstract

The invention provides water-based graphene flame-retardant PTC conductive paste, a preparation method thereof and a flexible conductive heating cloth, and relates to the technical field of conductivematerials. The water-based graphene flame-retardant PTC conductive paste is prepared from the following components in parts by weight: 5-20 parts of a PTC functional component, 10-20 parts of water-based flexible resin, 1-5 parts of a flame retardant, 5-20 parts of a conductive filler, 20-60 parts of water, 5-10 parts of a dispersant and 0.7-5 parts of an auxiliary agent, wherein the PTC functional component comprises one or more of a polymer PTC material and paraffin. The water-based graphene flame-retardant PTC conductive paste is a flame-retardant heating body with a PTC effect, the temperature can be controlled, and the safety is greatly improved. According to the flexible conductive heating cloth prepared from the conductive paste, the conductivity and the conductive uniformity of the heating cloth are improved, and the rubbing resistance of the heating cloth is greatly improved.

Description

technical field [0001] The invention relates to the technical field of conductive materials, in particular to a water-based graphene flame-retardant PTC conductive paste, a preparation method thereof, and a flexible conductive heating cloth. Background technique [0002] Some small products such as electric heating warm clothes, waist protectors and knee protectors currently on the market are made of conductive heating cloth woven with metal resistance wire and cotton thread, polyimide film, etc., which have poor rubbing resistance and are not It is flame retardant and self-limiting in temperature, so there is a risk of overheating due to malfunction or extreme use. In addition, for large-scale products such as electric mattresses, electric blankets, and electric protective covers, because most of them use 220V AC as the power supply and do not have the function of flame-retardant self-limiting temperature, these products lack safety and affect the service life of the produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/12D06N3/04D06N3/14D06N3/00D06M15/263D06M15/564D06M15/507D06M15/227D06M15/285D06M11/74D06M13/288D06M13/44D06M101/06D06M101/32
CPCD06N3/123D06N3/045D06N3/042D06N3/14D06N3/0059D06N3/0063D06N3/0061D06M15/263D06M15/564D06M15/507D06M15/227D06M15/285D06M11/74D06M13/288D06M13/44D06M2101/06D06M2101/32D06M2200/30D06M2200/50D06N2209/067
Inventor 岳根基高顺岳天赐曹卫华张福志
Owner 肃宁县中原纺织有限责任公司
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