Carbon oil and preparation method thereof

A carbon oil and graphene technology, which is applied in the preparation of carbon oil and in the field of carbon oil, can solve the problems of large differences in chemical active properties, poor high temperature resistance, affecting the service life of equipment, etc., and achieves low copper content, The effect of improved conductivity, easy storage and use

Inactive Publication Date: 2019-12-13
益阳市明正宏电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Some silver powder, copper powder or gold powder will be added to the current carbon oil to reduce its resistance value, thereby increasing its conductivity. However, due to the large difference in the chemical activity of carbon and metal, if the two are exposed to humid air, Chemical corrosion at the connection will affect the service life of the equipment and limit the use of this type of product
Moreover, the high temperature resistance of copper powder carbon oil commonly used at present is not very good, and its electrical conductivity will change under high temperature conditions.

Method used

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  • Carbon oil and preparation method thereof

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preparation example Construction

[0032] Second aspect, the present invention provides a kind of preparation method of carbon oil, comprises the following steps:

[0033] (1) Graphene, acetylene black and solvent are ultrasonically dispersed to obtain a dispersion;

[0034] (2) mixing the above dispersion with poly(3,4-ethylenedioxythiophene)-polystyrenesulfonic acid, hydroxypropyl cellulose, and copper nanoparticles, and grinding to obtain the carbon oil;

[0035] Among them, in parts by mass, poly(3,4-ethylenedioxythiophene)-polystyrenesulfonic acid takes 5-10 parts, acetylene black takes 4-10 parts, graphene takes 4-10 parts, hydroxypropyl fiber Take 0.1-1 parts for plain, 1-2 parts for copper nanoparticles, and 16-32 parts for solvent.

[0036] Specifically, in step (1), the graphene and acetylene black in the dispersion liquid obtained by ultrasonic dispersion need to be completely dispersed in the solvent as much as possible. The ultrasonic power is generally 1250-1500W. The ultrasonic time can be dete...

Embodiment 1

[0044] (1) 70g of three-layer graphene, 70g of acetylene black and 240g of water were mixed and placed in an ultrasonic disperser with an ultrasonic power of 1400W for 50min to obtain a dispersion.

[0045] (2) Mix 70g of poly(3,4-ethylenedioxythiophene)-polystyrenesulfonic acid, 3g of hydroxypropyl cellulose, and 13g of copper nanoparticles with the above dispersion, and manually grind for 60min to obtain solid particles Carbon oil with a diameter of 4 μm.

Embodiment 2

[0047](1) After mixing 60 g of two-layer graphene, 50 g of acetylene black and 200 g of water, place it in an ultrasonic disperser with an ultrasonic power of 1300 W and disperse for 30 min to obtain a dispersion.

[0048] (2) Mix 60g of poly(3,4-ethylenedioxythiophene)-polystyrenesulfonic acid, 1g of hydroxypropyl cellulose, and 10g of copper nanoparticles with the above dispersion, and manually grind for 45min to obtain solid particles Carbon oil with a diameter of 5 μm.

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Abstract

The invention relates to the technical field of conductive ink, and discloses carbon oil which comprises poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate), acetylene black, graphene, hydroxypropyl cellulose, copper nanoparticles and a solvent. The invention also provides a preparation method of the carbon oil. A carbon oil printing product provided by the invention has the advantages of small resistance, high temperature resistance and long service life; and the carbon oil has good uniformity and adhesive force.

Description

technical field [0001] The invention relates to the technical field of conductive ink, in particular to a carbon oil. In addition, the present invention also relates to a preparation method of carbon oil. Background technique [0002] In order to continuously meet the requirements of the development trend of small size, light weight, high performance and high functionality of electronic products, electronic components tend to be more small and ultra-thin, and printed circuit boards tend to be more high-precision graphics. It is becoming more and more difficult to arrange and install a large number of components on such a printed circuit board, which requires some capacitors or resistors on the printed circuit board itself. [0003] Carbon oil is an electronic functional material. Due to its high mechanical strength, abrasion resistance after film formation, good adhesion to the substrate, and good electrical conductivity, it can replace plugs, gold-plated keyboards, and mak...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/52C09D11/03
CPCC09D11/03C09D11/52
Inventor 吴道新祝文华邬家康姚文娟吴佳伦刘振
Owner 益阳市明正宏电子有限公司
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