Printable flexible conductive paste and preparation method thereof

Abstract

The invention belongs to the technical field of chemical industry, in particular to printable flexible conductive paste. The printable flexible conductive paste comprises the following components by weight: 11.1%-12.8% of fluororubber, 23%-33% of flake silver powder, 44.4%-51.2% of butyl acetate, and 11.1%-12.8% of fluorocarbon surfactant. The fluororubber is taken as an organic carrier, the flakesilver powder, is taken as a conductive filler, the butyl acetate is used for dissolving the fluororubber, and then the printable flexible conductive paste is obtained by simply and evenly mixing thedissolved fluororubber and the fluorocarbon surfactant and the flake silver powder. The fluorocarbon surfactant is adopted to enhance affinity of the flake silver powder to the fluororubber, therebyensuring stability of a material. The printable flexible conductive paste provided by the invention can be prepared in batch, enables the application range of a substrate to be wide, exhibits good mechanical flexibility, and has simple compositions. A preparation process is simple and feasible, the cost is low, and the paste can be cured at a room temperature.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a printable flexible conductive paste and a preparation method thereof. Background technique [0002] In addition to the conductive function of traditional conductive lines, flexible conductive lines also have mechanical flexibility (such as stretching, bending, folding, twisting and other mechanical deformations), and have great potential in emerging fields such as flexible printed circuits, flexible displays, and wearable electronics. important application prospects. Printing technology is one of the important methods to realize large-area, fast and efficient production of circuit patterns. Conductive pastes that integrate electrical conductivity and flexible printability are the frontier direction in the field of modern electronic materials and have attracted widespread attention. [0003] At present, epoxy resin systems are widely used as organic carri...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects of low mechanical deformation ability, high cost, poor stability and complex composition existing in the existing conductive paste, the present invention provides a printable flexible conductive paste and its preparation method, which has low cost, simple structure and convenient production , can be printed, the substrate has a wide range of applications, and can be cured at room temperature

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