Pressure-sensitive conductive slurry and preparation method and application thereof

Abstract

The invention provides pressure-sensitive conductive slurry and a preparation method and application thereof, and relates to the technical field of conductive materials. The pressure-sensitive conductive slurry comprises the following raw materials in parts by weight: 40-45 parts of first organic silicon resin, 40-45 parts of second organic silicon resin, 1-3 parts of granular carbon conductive filler and 4-5 parts of carbon nanotube conductive filler, wherein the viscosity of the first organic silicon resin is smaller than that of the second organic silicon resin. The preparation method comprises the step of uniformly mixing the raw materials. The prepared pressure-sensitive conductive slurry has high initial adhesion and can keep the adhesion for more than two weeks, and meanwhile, the conductive silica gel has good hydrophobicity due to the synergistic cooperation of all the components in the conductive silica gel. The raw materials are all environment-friendly odorless materials, and the product is pasty, convenient to construct and high in safety. The pressure-sensitive conductive slurry has the advantages of good pressure sensitivity, high conductivity and the like after being rapidly cured, and can be applied to the fields of bonding of electronic flexible materials, collecting electrodes of skin sensors and the like.

Description

technical field [0001] The invention relates to the technical field of conductive materials, in particular to a pressure-sensitive conductive paste and its preparation method and application. Background technique [0002] The electrodes of existing skin sensors such as electrocardiogram recorders and electromyographic feedback instruments are to attach circuits and devices attached to the substrate to the skin to realize the collection of physiological signals such as heart rate and electromyography. At present, there are two main processes for preparing electrodes. One is to form signal collecting electrodes by evaporating metal materials on the surface of the substrate. The main problems of this preparation method are that the metal conductive materials have poor flexibility, low safety, and high cost. The other is to transfer transparent conductive films such as graphene and carbon nanotubes to form circuits on the surface of the substrate by wet method or roll-to-roll me...

AI Technical Summary

Problems solved by technology

At present, many pressure-sensitive conductive silicone solutions have introduced organic solvents, benzene peroxide, acid esters or butyl esters, metal conductive particles and other harmful substances to human skin to varying degrees, which are not suitable for conductive electrodes of skin sensors.

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