Composition, preparation method and application thereof in heating material

A composition and slurry technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of long production cycle, large settling square resistance, difficulty in taking into account good stability and efficient preparation process, etc. content, shorten the production cycle, the effect of good heating effect

Inactive Publication Date: 2020-07-31
广东一纳科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, such as patent CN110167216A - a graphene electric heating film loaded with cobalt-doped manganese oxide nanoparticles and its preparation method, the technical scheme is: doping manganese oxide nanoparticles in graphene powder, with Plays an isolation role, so that graphene is not easy to reunite, but because no dispersant is added, after the subsequent graphene has been static for a long time, there may be sedimentation and a large square resistance value; patent CN109817385A - an environmentally friendly graphene conductive carbon The preparation method of slurry and its application on flexible heating film, its technical scheme is: use graphene oxide and polyester resin as raw materials, polyester resin needs to use curing agent to improve hardness and scratch resistance, curing time is shorter Long, so that in mass production, a longer production cycle is required
[0004] Therefore, a composition, a preparation method and its application in heating materials have been developed to solve the technical defects of graphene heating materials in the prior art that are difficult to take into account good stability and high-efficiency preparation process. Problems urgently needed to be solved by field technicians

Method used

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  • Composition, preparation method and application thereof in heating material
  • Composition, preparation method and application thereof in heating material
  • Composition, preparation method and application thereof in heating material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment is a specific embodiment for preparing the graphene heating material product 1.

[0035] Step 1, the preparation of graphene slurry 1:

[0036] S1. After mixing 3Kg of dispersant dipropylene glycol butyl ether and 100L of deionized water, disperse at a speed of 2000-3500r / min for 60-150min to obtain the first product 1;

[0037] S2. After the first product 1 is mixed with 10Kg of expanded graphite and 1Kg of dispersant povidone K30, ultrasonication is performed for 4-6 hours to obtain the second product 1;

[0038] S3. After mixing the second product 1 with a dispersant (2Kg acrylic block copolymer), homogenize for 2-4 hours to obtain the third product 1;

[0039] S4. After the third product is mixed with 100Kg graphene powder, the graphene slurry 1 is obtained by ultrasonication for 1 hour.

[0040] Step 2, preparation of water-based viscous resin slurry:

[0041] Water-based viscous resin (a mixture of 25Kg polyurethane resin and 25Kg acrylic resin)...

Embodiment 2

[0046] This embodiment is a specific embodiment for preparing the graphene heating material product 2.

[0047] Step 1, the preparation of graphene slurry 2:

[0048] S1. After mixing 0.3Kg dispersant dipropylene glycol butyl ether and 100L deionized water, disperse for 60-150min at a speed of 2000-3500r / min, and obtain the first product 2;

[0049] S2. After mixing the first product 2 with 40Kg of expanded graphite and 0.3Kg of the dispersant povidone K30, ultrasonication was performed for 4-6 hours to obtain the second product 2;

[0050] S3. After mixing the second product 2 with a dispersant (a mixture of 0.1Kg dipropylene glycol butyl ether and 0.2Kg povidone K30), homogenize for 2-4 hours to obtain the third product 2;

[0051] S4. After the third product is mixed with 30Kg graphene powder, the graphene slurry 2 is obtained by ultrasonication for 1 hour.

[0052] Step 2, preparation of water-based viscous resin slurry:

[0053] Water-based viscous resin (a mixture of ...

Embodiment 3

[0058] This embodiment is a specific embodiment for preparing the graphene heating material product 3.

[0059] Step 1, the preparation of graphene slurry 3:

[0060] S1. After mixing 2Kg of dispersant dipropylene glycol butyl ether and 100L of deionized water, disperse at a speed of 2000-3500r / min for 60-150min to obtain the first product 3;

[0061] S2. After mixing the first product 3 with 100Kg of expanded graphite and 4Kg of the dispersant povidone K30, ultrasonication was performed for 4-6 hours to obtain the second product 3;

[0062] S3. After mixing the second product 3 with a dispersant (a mixture of 1Kg dibutyl adipate and 2Kg dipropylene glycol methyl ether acetate), homogenize for 2 to 4 hours to obtain the third product 3;

[0063] S4. After the third product is mixed with 60Kg graphene powder, the graphene slurry 3 is obtained by ultrasonication for 1 hour.

[0064] Step 2, preparation of water-based viscous resin slurry:

[0065] Mix water-based viscous resi...

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Abstract

The invention belongs to the field of graphene product research and development, and particularly relates to a composition, a preparation method and an application thereof in a heating material. The invention provides a composition. The composition comprises expanded graphite, graphene powder, a dispersing agent, aqueous viscous resin, a base material wetting agent and a defoaming agent. The invention also provides a preparation method of the composition, and also provides an application of the composition or a product obtained by the preparation method in a heating material. According to thetechnical scheme provided by the invention, the solid content of graphene can be effectively improved by selecting the dispersing agent and adding the dispersing agent for multiple times; meanwhile, the preparation method is simple and quick, and the production period of the product can be effectively shortened. Furthermore, through detection, the prepared product is low in sheet resistance valueand good in heating effect, and sedimentation or agglomeration cannot occur after long-term use. The technical defect that in the prior art, good stability of a graphene heating material and efficientpreparation cannot be realized at the same time is overcome.

Description

technical field [0001] The invention belongs to the field of research and development of graphene products, and in particular relates to a composition, a preparation method and its application in heating materials. Background technique [0002] Heating paste is a kind of conductive ink with a certain viscosity formed by uniformly dispersing carbon material particles in thermosetting or thermoplastic resin. After heating and curing, the ink layer is not easy to oxidize and has stable performance. It has the advantages of scratch resistance, acid resistance and alkali corrosion resistance. , can play the role of protection and conduction heat. The heat-generating paste has strong self-adhesion and is well combined with substrates such as metal, glass, PET and PI film. [0003] In the prior art, such as patent CN110167216A - a graphene electric heating film loaded with cobalt-doped manganese oxide nanoparticles and its preparation method, the technical scheme is: doping mangan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D133/04C09D7/61
CPCC09D133/04C09D175/04C09D7/61C09D7/70C08L33/04C08K7/24C08K3/042C08L75/04
Inventor 王建兴刘才超杨志鹏张弛
Owner 广东一纳科技有限公司
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