Conductive ink used for ink-jet printing, and preparation method and applications thereof

Abstract

The invention embodiment provides a conductive ink used for ink-jet printing, and a preparation method and applications thereof. The conductive ink used for ink-jet printing comprises, by weight, 30 to 70 parts of nano metal, 10 to 40 parts of a high-boiling UV monomer humectant, 10 to 60 parts of a fast-drying solvent, 0 to 5 parts of a binder, 0.5 to 2 parts of a UV curing agent, and 0 to 2 parts of an auxiliary agent.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of 3D printing, and specifically relate to a conductive ink that can be used for inkjet printing and its preparation method and application. Background technique [0002] Printed Electronics (Printed Electronics) is the use of functional inks to directly print electronic circuits on the printing plate, such as printing conductive inks on flexible organic films to obtain conductive circuits, printing semiconductor inks to obtain transistors or memory components, etc. This new generation of printed electronic circuits is an assembly containing electronic connection lines and components, which will replace the traditional printed circuit board and reinstall the components. [0003] Inkjet printed circuit board technology based on conductive ink is an advanced circuit board manufacturing technology, which is the development trend of circuit board digital manufacturing technology, and is...

AI Technical Summary

Problems solved by technology

However, the addition of high boiling point solvents greatly prolongs the drying process of conductive ink during the process of layer-by-layer printing to prepare multi-layer circuit boards, and the drying and sintering curing process of conductive ink also greatly limits the layer-by-layer accumulation efficiency.

Therefore, the current research on printing conductive circuits based on conductive inks is mainly single-sided and single-layer circuits, which cannot form continuous layer-by-layer printing circuits. The second layer of printing can only be performed after the surface is dry and sintered and solidified.

[0005] Using infrared treatment is one of the solutions to solve the problem of fast drying after printing, but high-power infrared lamps are needed to drive high-boiling point solvents to volatilize. In addition to high energy consumption, high-power infrared will generate a lot of volatile gas during the drying process, and at the same time High-power infrared can easily cause deformation of the printing substrate