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Rollable flexible electrothermal film and manufacturing method thereof

An electrothermal film and flexible technology, applied in the field of rollable flexible electrothermal film and its production, can solve problems such as affecting the thermal conductivity and far-infrared radiation effect of electrothermal film products, complicated electrothermal film manufacturing process, and limiting the use range of the electrothermal film, etc. Conducive to mass production, easy to obtain power supply, good heating effect

Pending Publication Date: 2020-06-12
QINGDAO DT NANO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current electrothermal film production process is relatively complicated. Generally, the electrothermal film is composed of multiple layers such as a heating layer, an electrode layer and a substrate, and the layers are bonded together by an adhesive, which makes the electrothermal film The production process is relatively complicated, which is not conducive to cost reduction
Generally, the base material of the electric heating film is a hard insulating material, which will block part of the heat conduction, affect the heat conduction and far-infrared radiation effect of the electric heating film product, and cannot be curled arbitrarily, which will reduce the user's satisfaction
In general, the properties of the materials used in the layers of the electrothermal film are different, which will reduce the flexibility of the electrothermal film to a certain extent and limit the application range of the electrothermal film.

Method used

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  • Rollable flexible electrothermal film and manufacturing method thereof
  • Rollable flexible electrothermal film and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A rollable flexible electrothermal film comprises the following components by weight percentage:

[0038] Styrene thermoplastic elastomer 70%, graphene and conductive carbon black composite conductive agent 19%, antioxidant 2,6-di-tert-butyl-p-cresol 1%, flow agent ethylene bisstearamide 5% , Petroleum-based plasticizer 4%, surfactant cellulose macromolecule 1%. Wherein, the composite conductive agent is a composite conductive agent of graphene and conductive carbon black, and the mass ratio of graphene: conductive carbon black is 1:1.

[0039] Make it as follows:

[0040] Styrene thermoplastic elastomer, graphene and conductive carbon black composite conductive agent, antioxidant 2,6-di-tert-butyl p-cresol, flow agent ethylene bisstearic acid amide, petroleum-based plasticizer according to the above ratio Melt and knead with surfactant cellulose macromolecules at a high temperature of 200° C. for 1.5 h in a kneading equipment to obtain a mixed jelly-like substance. ...

Embodiment 2

[0046] A rollable flexible electrothermal film comprises the following components by weight percentage:

[0047] Olefin thermoplastic elastomer 62%, graphene and carbon nanotube composite conductive agent 25%, antioxidant 2,6-di-tert-butyl-4-methylphenol 1%, flow agent pentaerythritol stearate 5% , Fatty oil plasticizer 5%, surfactant sugar macromolecule 2%. Wherein, the composite conductive agent is graphene and carbon nanotube composite conduction, and the mass ratio of graphene:carbon nanotube is 1:2.

[0048] Follow the steps below to make the method:

[0049] Olefin-based thermoplastic elastomer, graphene and carbon nanotube composite conductive agent, antioxidant 2,6-di-tert-butyl-4-methylphenol, flow agent pentaerythritol stearate and surfactant sugars were mixed according to the above ratio The macromolecule is melted and kneaded at a high temperature of 190°C for 2 hours in a mixing equipment to obtain a mixed jelly substance;

[0050] Put the mixed jelly substance...

Embodiment 3

[0055] A rollable flexible electrothermal film comprises the following components by weight percentage:

[0056] 45% styrene-based thermoplastic elastomer, 35% graphene and graphite flake composite conductive agent, 4% antioxidant styrenated phenol, 8% mixture of fatty acid derivatives for flow agent, 6% petroleum-based plasticizer, surface Active Agent Anionic Surfactant 2%. Wherein, the composite conductive agent is a composite conductive agent of graphene and graphite sheet, and the mass ratio of graphene:graphite sheet is 1:1.

[0057] Make it as follows:

[0058]According to the above ratio, mix styrene-based thermoplastic elastomer, graphene and graphite sheet composite conductive agent, antioxidant styrenated phenol, flow agent fatty acid derivative, petroleum plasticizer and surfactant anionic surfactant in the mixture Melting and kneading was carried out at a high temperature of 200° C. for 1.5 h in the refining equipment to obtain a mixed gel-like substance.

[00...

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Abstract

The invention provides a rollable flexible electrothermal film. The rollable flexible electrothermal film comprises, by weight, 45-70% of a thermoplastic elastomer, 6-40% of a graphene composite conductive agent, 1-5% of an antioxidant, 3-10% of a flowing agent, 3-8% of a rubber plasticizer and 1-3% of a surfactant. Due to the existence of the thermoplastic elastomer component, the electrothermalfilm has excellent flexibility; due to the existence of the graphene composite conductive agent and the reasonable weight percentage, the electrothermal film can be powered by 5V low voltage and can be used as a heat source of various heating clothes.

Description

technical field [0001] The invention belongs to the field of electric heating films, and more specifically relates to a rollable flexible electric heating film and a manufacturing method thereof. Background technique [0002] At present, there are many kinds of electric heating film products on the market, most of which are used in clothing heating. If the conductive medium is carbon, it also has the function of far infrared health care, which greatly enriches the electric heating film market. [0003] However, the current electrothermal film production process is relatively complicated. Generally, the electrothermal film is composed of multiple layers such as a heating layer, an electrode layer and a substrate, and the layers are bonded together by an adhesive, which makes the electrothermal film The manufacturing process is relatively complicated, which is not conducive to reducing the cost. Generally, the base material of the electric heating film is a hard insulating ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L1/00C08K3/04C08K5/13C08K5/20C08K13/02C08J5/18H05B3/10
CPCC08J5/18H05B3/10C08J2353/02C08J2401/00C08K2201/001C08K3/04C08K3/042C08K5/13C08K5/20C08K13/02
Inventor 萧沛然刘文正孟昭晖孙兴周长阳徐燕
Owner QINGDAO DT NANO TECH CO LTD
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