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Graphene modified inorganic nonmetal thick film heating material and preparation method thereof

An inorganic non-metallic and graphene modification technology, which is applied to heating element materials, conductive materials dispersed in non-conductive inorganic materials, etc., can solve the problems of electrical conduction, heat conduction, photoelectric conversion and poor stability, and achieve low energy loss , good stability and low resistance

Inactive Publication Date: 2020-04-10
武汉新能源研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing heating materials have poor electrical conductivity, thermal conductivity, photoelectric conversion and stability

Method used

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  • Graphene modified inorganic nonmetal thick film heating material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Take 6.2kg of elemental silicon, 1.8kg of silicon oxide and 2.0kg of magnesium oxide, and prepare functional phase composite powder by mixing elemental elements with nanoscale silicon oxide and magnesium oxide slag phase materials.

[0032] Add 2.45 kg of lead-free glass and 0.05 kg of graphene to 10.0 kg of functional phase composite powder. After mixing evenly, add 37.5 kg of organic solvents. The organic solvents are 33.8 kg of castor oil, 1.5 kg of calcium ricinoleate, and 2.2 kg of ethanol kg, stir the mixture evenly to form a thick-film slurry, coat the thick-film slurry on the ceramic substrate, put the ceramic substrate coated with the thick-film slurry into a high-temperature furnace for sintering, the sintering temperature is 1100°C, and sinter The time is 180min, and the sintering atmosphere is air.

Embodiment 2

[0034] Take 5.5kg of elemental silicon, 2.1kg of silicon oxide, 2.2kg of magnesia, and 0.2kg of yttrium oxide, and prepare functional phase composite powder by mixing elemental elements with subnano-scale silicon oxide, magnesia, and yttrium oxide slag phase materials.

[0035] Add 2.45 kg of lead-free glass and 0.05 kg of graphene to 10.0 kg of functional phase composite powder. After mixing evenly, add 37.5 kg of organic solvents. The organic solvents are 31.9 kg of castor oil, 1.1 kg of calcium ricinoleate, and 1.9 kg of ethanol kg, terpineol 2.6kg, stir the mixture evenly to form a thick-film slurry, coat the thick-film slurry on the ceramic substrate, put the ceramic substrate coated with the thick-film slurry into a high-temperature furnace for sintering, and sinter The temperature is 1200°C, the sintering time is 60min, and the sintering atmosphere is air.

Embodiment 3

[0037] Take 5.5kg of elemental silicon, 2.2kg of silicon oxide, 1.8kg of magnesium oxide, 0.3kg of yttrium oxide, and 0.2g of lithium carbonate, and prepare the functional phase by mixing elemental elements and nano-scale silicon oxide, magnesium oxide, yttrium oxide, and lithium carbonate slag phase materials Composite powder.

[0038] Add 2.45 kg of lead-free glass and 0.05 kg of graphene to 10.0 kg of functional phase composite powder. After mixing evenly, add 37.5 kg of organic solvents. The organic solvents are 31.9 kg of castor oil, 1.1 kg of calcium ricinoleate, and 1.9 kg of ethanol kg, terpineol 2.6kg, stir the mixture evenly to form a thick-film slurry, coat the thick-film slurry on the ceramic substrate, put the ceramic substrate coated with the thick-film slurry into a high-temperature furnace for sintering, and sinter The temperature is 1100°C, the sintering time is 180min, and the sintering atmosphere is air.

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Abstract

The invention discloses a graphene modified inorganic nonmetal thick film heating material which is prepared by the following steps: uniformly mixing elemental silicon, nano-scale and sub-nano-scale slag phases to prepare functional phase composite powder with the content of the elemental silicon accounting for 30-40% of the total weight of the functional phase composite powder; uniformly mixing the functional phase composite powder with glass powder, wherein the content of the glass powder accounts for 20-30% of the total weight of the functional phase composite powder; adding graphene into the mixture powder, wherein the content of the graphene accounts for 0.5-2% of the total weight of the functional phase composite powder; adding an organic solvent into the graphene mixed powder, and uniformly stirring to form thick film slurry; and sintering the thick film slurry under the condition of 1100-1200 DEG C to prepare the required material. The method provided by the invention is simplein process, and the prepared heating material is good in stability, good in electrical conductivity and thermal conductivity, low in resistance and low in energy consumption; and the coating can be coated on a plane, a curved surface or a toroidal substrate in various modes, and can be applied to the fields of industry, agriculture, buildings, household appliances and the like.

Description

technical field [0001] The invention relates to the technical field of new material preparation and heating, in particular to a graphene-modified inorganic non-metallic thick-film heating material and a preparation method thereof. Background technique [0002] The heating materials used in household appliances, industry, agriculture, medicine and other fields are mostly resistance wires. The resistance wires are in a hot state when they are working. The temperature is relatively high, and they are easy to oxidize and fuse. , resulting in an inductive reactance effect. Existing heating materials have poor electrical and thermal conductivity, photoelectric conversion and stability. [0003] In 2004, Andre Geim and Konstantin Novoselov, physicists at the University of Manchester in the United Kingdom, successfully separated graphene from graphite by micromechanical exfoliation, and studied its quasi-particle properties and magnetic field effects. . Subsequently, related rese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/14H01B1/24H01B1/18
CPCH01B1/18H01B1/24H05B3/14
Inventor 陈双印代荣修但佳煜
Owner 武汉新能源研究院有限公司