Graphene low-voltage exothermic paint and preparation method thereof

A technology of heating paint and graphene, applied in the direction of polyurea/polyurethane paint, coating, etc., can solve the problems of coating oxidation, uneven heating temperature, etc., to achieve easy handling, uniform heating, and good heating stability. Effect

Inactive Publication Date: 2017-05-31
苏州碳丰石墨烯科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to overcome the defects of coating oxidation and non-uniform heating temperat

Method used

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  • Graphene low-voltage exothermic paint and preparation method thereof
  • Graphene low-voltage exothermic paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of graphene low pressure heating coating, comprises each component of following parts by weight:

[0040] Graphene carbon nanotube slurry: 55 parts;

[0041] Acrylic modified polyurethane resin emulsion: 18 parts;

[0042] Water: 8 parts;

[0043] Dipropylene glycol dimethyl ether: 0.1 part;

[0044] Defoamer: 0.1 part;

[0045] Leveling agent: 0.1 part;

[0046] Propylene glycol: 0.1 parts.

[0047] A kind of preparation method of graphene low pressure heating coating, comprises the following steps:

[0048] 1) Add the graphene carbon nanotubes into the nano grinder and grind for 24 hours until the fineness is less than 30um;

[0049] 2) Slowly add the acrylic modified polyurethane resin emulsion and stir thoroughly for more than 2.5 hours until fully mixed;

[0050] 3), slowly add defoamer and dipropylene glycol dimethyl ether;

[0051] 4), let it stand until there is no bubble;

[0052] 5) Add leveling agent and stir slowly for 1.5h;

[0053] 6), sta...

Embodiment 2

[0055] A kind of graphene low pressure heating coating, comprises each component of following parts by weight:

[0056] Graphene carbon nanotube slurry: 75 parts;

[0057] Acrylic modified polyurethane resin emulsion: 25 parts;

[0058] Water: 12 parts;

[0059] Dipropylene glycol dimethyl ether: 2 parts;

[0060] Defoamer: 0.3 parts;

[0061] Leveling agent: 0.3 parts.

[0062] Propylene glycol: 0.1 parts;

[0063] Described graphene carbon nanotube slurry comprises the dispersant PVP 0.2% by weight percentage,

[0064] Graphene 1.5%, carbon nanotube 4.5%, and the rest is solvent water.

[0065] A kind of preparation method of graphene low pressure heating coating, comprises the following steps:

[0066] 1), the preparation method of graphene carbon nanotube is to dissolve dispersing agent PVP in water, add graphene and carbon nanometer in stages, stir, disperse, until adding; Add graphene carbon nanotube slurry to nano grinder Medium grinding for 24 hours, until the fi...

Embodiment 3

[0073] A kind of graphene low pressure heating coating, comprises each component of following parts by weight:

[0074] Graphene carbon nanotube slurry: 65 parts;

[0075] Acrylic modified polyurethane resin emulsion: 21 parts;

[0076] Water: 10 parts;

[0077] Dipropylene glycol dimethyl ether: 1 part;

[0078] Defoamer: 0.2 parts;

[0079] Leveling agent: 0.1 part;

[0080] Propylene glycol: 2 parts;

[0081] Described graphene carbon nanotube slurry comprises the dispersant PVP 0.5% by weight percentage,

[0082] 2.5% graphene, 2.5% carbon nanotubes, and the rest is solvent water.

[0083] The preparation method of the graphene low-pressure heat-generating coating of this embodiment is the same as that of Embodiment 2.

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Abstract

The invention discloses a graphene low-voltage exothermic paint which comprises the following components in parts by weight: 55-75 parts of graphene carbon nanotube slurry, 18-25 parts of acrylic acid modified polyurethane resin emulsion, 8-12 parts of water, 0.1-2 parts of dipropylene glycol dimethyl ether, 0.1-0.3 part of defoaming agent and 0.1-0.3 part of leveling agent. The graphene low-voltage exothermic paint is a water-based paint, and is nontoxic and environment-friendly; and the waste is convenient for treatment. The paint has the advantages of favorable film forming effect and uniform exothermicity; and the coating does not age or peel after long-time use. The paint can be powered only by a common power bank capable of providing 7.4V or 5.0V voltage, or even by a cellphone capable of providing 3.7V voltage, thereby providing technical feasibility for outdoor heating wearable devices. The paint can be used for making floor heating devices and exothermic wall paintings, has higher safety due to low voltage, and has the characteristics of higher exothermic stability and durability, high thermal conversion rate and higher use durability.

Description

technical field [0001] The invention relates to a nano functional coating, in particular to a graphene low-pressure heating coating and a preparation method thereof. Background technique [0002] According to whether conductive materials are added or not, electrothermal coatings are divided into two categories: additive type and non-additive type. The base material of the additive electrothermal coating does not have the ability to conduct electricity, so it must be mixed with conductive fillers or conductive additives. The base material of the non-additive electrothermal coating itself can conduct electricity, and no other conductive materials need to be added. According to the type of binder, it can be divided into two types: inorganic electrothermal coating and organic electrothermal coating. Inorganic electrothermal coatings are additive electrothermal coatings, which mainly use precious metal particle fillers, metal oxide fillers, carbon black powder, graphite powder,...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D7/12C09D7/00
CPCC09D175/14C08K2201/011C09D7/20C09D7/61C09D7/63C09D7/65C09D7/70C08L39/06C08K7/24C08K5/053C08K3/04
Inventor 李洪锋李贺
Owner 苏州碳丰石墨烯科技有限公司
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