Functionalized graphene-based solar back aluminum slurry and preparation method thereof

A technology of solar energy and graphene, applied in the direction of conductive materials dispersed in non-conductive inorganic materials, cable/conductor manufacturing, electrical components, etc., can solve problems such as poor bending resistance, poor adhesion, and poor conductivity , to achieve good weather resistance, excellent printing performance and chemical resistance, good electrical conductivity

Active Publication Date: 2014-01-08
广州市尤特新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the technical problems of poor dispersion of graphene in the polymer matrix, low printing rate of existing solar back aluminum paste, poor adhesion, poor electri

Method used

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  • Functionalized graphene-based solar back aluminum slurry and preparation method thereof
  • Functionalized graphene-based solar back aluminum slurry and preparation method thereof

Examples

Experimental program
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Example Embodiment

[0028] Example 1.

[0029] Firstly, a functionalized graphene dispersion is prepared. The process is: use A-187 coupling agent to modify graphene oxide, and obtain modified graphene oxide by reacting A-187 coupling agent with graphene oxide: 50 parts of modified graphene oxide is dissolved in 40 parts of a 1:1 mixed solution of deionized water and absolute ethanol. After sonicating for 40 minutes, 5 parts of 40g / L absolute ethanol containing coupling agent Add slowly under stirring, continue to react for 18h after adding, the obtained paste product is washed with absolute ethanol 3 times to remove excess coupling agent, washed with deionized water 5 times, filtered and dried in 60℃ oven ; After modification, a covalent bond is formed between each other to significantly improve the thermal stability of the modified graphene oxide; then the modified graphene oxide is reduced, and the modified graphene oxide is placed in a ceramic crucible and placed in a 1060℃ muffle In the furnac...

Example Embodiment

[0032] Example 2.

[0033] First, a functionalized graphene dispersion is prepared. The process is to modify graphene oxide with A-1100 coupling agent, and obtain modified graphene oxide by reacting A-1100 coupling agent with graphene oxide: 50 parts of modified graphene oxide is dissolved in 40 parts of a 1:1 mixed solution of deionized water and absolute ethanol. After sonicating for 40 minutes, 5 parts of 40g / L absolute ethanol containing coupling agent Add slowly under stirring, continue to react for 18h after adding, the obtained paste product is washed with absolute ethanol 3 times to remove excess coupling agent, washed with deionized water 5 times, filtered and dried in 60℃ oven ; After modification, a covalent bond is formed between each other to significantly improve the thermal stability of the modified graphene oxide; then the modified graphene oxide is reduced, and the modified graphene oxide is placed in a ceramic crucible and placed in a 1060℃ muffle In the furnac...

Example Embodiment

[0036] Example 3.

[0037] First, a functionalized graphene dispersion is prepared. The process is: use A-174 coupling agent to modify graphene oxide, and obtain modified graphene oxide by reacting A-174 coupling agent with graphene oxide: 50 parts of modified graphene oxide is dissolved in 40 parts of a 1:1 mixed solution of deionized water and absolute ethanol. After sonicating for 40 minutes, 5 parts of 40g / L absolute ethanol containing coupling agent Add slowly under stirring, continue to react for 18h after adding, the obtained paste product is washed with absolute ethanol 3 times to remove excess coupling agent, washed with deionized water 5 times, filtered and dried in 60℃ oven ; After modification, a covalent bond is formed between each other to significantly improve the thermal stability of the modified graphene oxide; then the modified graphene oxide is reduced, and the modified graphene oxide is placed in a ceramic crucible and placed in a 1060℃ muffle In the furnace,...

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Abstract

The invention discloses functionalized graphene-based solar back aluminum slurry and a preparation method thereof. The solar back aluminum slurry is prepared from the following raw materials in percentage by weight: 65-73 percent of aluminum powder, 1-3 percent of glass powder, functionalized graphene dispersion liquid containing 0.12-0.15 percent of functionalized pure graphene, 20-30 percent of organic carrier, 3-5 percent of auxiliary agent and the balance of diluent, wherein oxidized graphene is modified by using a coupling agent; the modified oxidized graphene is obtained through reaction of the coupling agent and the oxidized graphene and then is reduced to obtain the functionalized graphene; the functionalized graphene is dispersed into terpineol and butyl carbitol with a mass ratio of 5.5-6.5:1 after being subjected to ultrasonic treatment to form the functionalized graphene dispersion liquid. The preparation method comprises the steps of mixing, grinding and vacuum deformation of the raw materials. The solar back aluminum slurry has the advantages of high printing rate and good adhesion, conductivity, bending resistance and weathering resistance.

Description

technical field [0001] The invention relates to a solar back aluminum paste and a preparation method thereof. Background technique [0002] Graphene has a unique structure and excellent electrical, thermal, mechanical and other properties. Since it was successfully prepared in 2004, it has been a research hotspot in the field of application all over the world. Graphene is a semiconductor without an energy gap, has a carrier mobility 100 times higher than silicon, has a micron-scale free path and a large coherence length at room temperature, so graphene is an ideal material for nanocircuits. Graphene has good thermal conductivity, and its thermal conductivity can reach 5300W·mK -1) , high conductivity, and its electron mobility exceeds 15000m2·V -1 ·S -1 , high strength, up to 110GPa and large specific surface area, up to 2630m 2 / g. These excellent properties make graphene and its composite materials have broad application prospects in the fields of electrochemistry, na...

Claims

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Application Information

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IPC IPC(8): H01B1/22H01B13/00H01L31/0224
Inventor 陈伟朱鑫
Owner 广州市尤特新材料有限公司
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