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PTC graphene heating printing ink, preparation method thereof and heating film prepared from PTC graphene heating printing ink

A graphene and ink technology, applied in the directions of ink, electric heating device, ohmic resistance heating, etc., to achieve the effect of improving the use range, little change in resistance value, and improving safety

Inactive Publication Date: 2017-12-08
DEYANG CARBONENE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the above-mentioned problems existing in the prior art, provide a kind of PTC graphene heating ink and preparation method thereof, and the heating film prepared thereof, the present invention has increased the PTC function of graphene heating film, and this function The realization process is simple, efficient and practical, which eliminates the potential safety hazards of the graphene heating film in the prior art, and improves the practicability of the graphene heating film

Method used

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  • PTC graphene heating printing ink, preparation method thereof and heating film prepared from PTC graphene heating printing ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of PTC graphene heating ink, comprises the component of following mass percent:

[0035] Binder 50-70%, solvent 9-21%, additive 1-3%, conductive filler 10-20%, PTC functional material 5-20%.

[0036] The PTC functional material is one of barium carbonate oxide, lead oxide oxide, niobium oxide oxide, Bi oxide, La oxide, Y oxide, Nb oxide, Sb oxide, sintering aid or according to A variety of mixtures in any proportion.

[0037] The conductive filler is graphene or a mixture of graphene and graphite powder, carbon black, carbon fiber powder, and carbon nanotubes.

[0038] When the conductive filler is graphene mixed with other components, the mass percentage of graphene in the conductive filler is 2.5-5%.

[0039] The graphene is intrinsic graphene, the number of layers is 1-10, the sheet size is 1-5 μm, and the average thickness is less than 3 nm.

[0040] The preparation method of the binder is: take another solvent and add it to the reaction kettle, add the re...

Embodiment 2

[0045]A kind of PTC graphene heating ink, comprises the component of following mass percent:

[0046] 70% binder, 9% solvent, 1% additive, 15% conductive filler, 5% PTC functional material.

[0047] In this embodiment, the PTC functional material is barium carbonate oxide; the conductive filler is graphene, and the graphene is intrinsic graphene, the number of layers is 1-10, and the sheet size is 1-5 μm. The average thickness is less than 3nm; the resin is epoxy resin; the solvent is ethylene glycol butyl ether; and the auxiliary agent is a thixotropic agent.

[0048] In this example, the preparation method of the binder is: take another solvent and add it to the reaction kettle, add the resin under stirring at 60°C, the mass ratio of the solvent to the resin is 4:1, and wait until the resin is completely soaked and dissolved. , 70 ℃ insulation 3h, and hot filtration that is to obtain the binder. Wherein, in order to simplify the preparation process, preferably the solvent ...

Embodiment 3

[0050] A kind of PTC graphene heating ink, comprises the component of following mass percent:

[0051] 70% binder, 12% solvent, 1% additive, 12% conductive filler, 5% PTC functional material.

[0052] In this embodiment, the PTC functional material is lead oxide; the conductive filler is a mixture of graphene and graphite powder, and the mass percentage of graphene in the conductive filler is 2.5%. The graphene is intrinsic graphene, the number of layers is 1-10 layers, the sheet size is 1-5 μm, and the average thickness is less than 3nm; the resin is polyamide resin; the solvent is diethylene glycol butyl ether acetic acid ester; the auxiliary agent is a leveling agent.

[0053] In this example, the preparation method of the binder is as follows: take another solvent and add it to the reaction kettle, add the resin under stirring at 90°C, the mass ratio of the solvent to the resin is 4:1, and wait until the resin is completely soaked and dissolved , 80°C for 4h, and filtere...

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Abstract

The invention discloses PTC graphene heating printing ink and a preparation method thereof. The PTC graphene heating printing ink is prepared from the following components in percentages by mass: 50% to 70% of a binder, 9% to 21% of a solvent, 1% to 3% of an additive, 10% to 20% of a conductive filler and 5% to 20% of a PTC functional material. The preparation method comprises the following steps: (1) firstly stirring and dispersing the binder, the solvent and the additive for 20 to 30 min, then adding the PTC functional material into stirring equipment for stirring for 8 to 12 min, and finally adding the conductive filler for uniform stirring to obtain a coarse paste; and (2) carrying out four to six times of three-roller grinding on the coarse paste so as to obtain the PTC graphene heating printing ink. The invention also discloses a heating film. The heating film comprises an organic polymer base material film, the PTC graphene heating printing ink, a conductive silver paste, conductive copper foil and an organic polymer adhesive film. The PTC function of the graphene heating film is increased, the potential safety hazard problem of an existing graphene heating film is eliminated, and the practicability is improved.

Description

technical field [0001] The invention belongs to the technical field of novel electrothermal materials, and in particular relates to a PTC graphene heating ink, a preparation method thereof, and a heating film prepared therefrom. Background technique [0002] ​At present, there are two main types of heating film, one is high-voltage type, which is mainly used in industries such as floor heating, wall painting and industrial insulation; the other type is low-voltage type, which is mainly used in industries such as medical care. Graphene has good electrical conductivity, fast electron mobility, fast heating speed, more energy-saving and environmental protection, and the heating principle of graphene is "life light" 8-15μm far-infrared heating, which has a good health care effect on the human body, so graphene heating ink In far-infrared electric heating film, infrared heater, far-infrared heating clothing, heating cap, heating insole, far-infrared electric blanket, sweat steam ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/03C09D11/102C09D11/107C09D11/104C09D11/14H05B3/34H05B3/14
CPCC09D11/03C09D11/102C09D11/104C09D11/107C09D11/14H05B3/14H05B3/34
Inventor 尹天平廖炜简璐姚林高华
Owner DEYANG CARBONENE TECH
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