Nanodiamondene-containing electricity-conducting and heat-conducting electronic paste and preparation method thereof

Abstract

The invention discloses a nanodiamondene-containing electricity-conducting and heat-conducting electronic paste. The nanodiamondene-containing electricity-conducting and heat-conducting electronic paste is prepared by adding glass powder into a paste matrix, wherein the paste matrix comprises silvered copper powder and nanodiamondene; when the using amount of the silvered copper powder is 70-80g,the using amount of the nanodiamondene is 1-10g; the addition amount of the glass powder is 5-10% in terms of the weight of the paste matrix. The surface-silvered copper powder and the nanodiamondeneare used as functional phases; the surface-silvered copper powder can prevent the copper powder from directly contacting the atmosphere so as to prevent the copper powder from being oxidized, the electrical conductivity thereof is not affected and the electrical conductivity is good; the used nanodiamondene has high hardness, strong wear resistance and good heat conduction, so that the heat conductivity of the electronic paste can be effectively improved.

Description

technical field [0001] The invention belongs to the field of preparation technology of novel insulating and heat-conducting paste, and in particular relates to a conductive and heat-conducting electronic paste containing nano-diamondene and a preparation method thereof. Background technique [0002] As an important functional material, conductive electronic paste has become one of the focuses of the world's research. The electronic paste product integrates metallurgy, chemical industry, and electronic technology. It is a paste that is uniformly mixed with solid powder and organic solvents. , is a high-tech electronic functional material, mainly used in the manufacture of post-film integrated circuits, resistors, resistor networks, MLCC, LED cold light sources, OLED and other electronic components. In recent years, with the advancement of science and technology, the development of electronic components has been accelerated, and its key technologies and processes have been con...

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Problems solved by technology

[0004] Conductive electronic pastes are generally electronic pastes with metal powders such as metal gold, silver, and copper as the main functional phase. Due to the high price of metal gold and silver, copper-based conductive electronic pastes have been widely used, but the metal copper is active. , easy to oxidize to form copper oxide, which leads to a sharp drop in conductivity, and thermally conductive electronic pastes are usually prepared by adding thermally conductive fillers, such as glass, ceramics or polymer materials, to a polymer matrix or inorganic silicate matrix. All are lattice heat conduction, the thermal conductivity is generally less than 1W / (m K), and the thermal conductivity is low, which cannot meet the heat conduction requirements of electronic components

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