Resin matrix composite and preparing method thereof

Abstract

The invention discloses a resin matrix composite and a preparing method thereof. The composite is a composite which is mainly composed of a resin matrix and an inorganic filler dispersed in the resinmatrix, wherein the inorganic filler is of a double-layer core-shell structure. The inorganic filler is composed of a core prepared from an insulating material, a first shell layer covering the core and a second shell layer covering the first shell layer, wherein the material of the first shell layer has conductivity, and the material of the second shell layer has insulativity. According to the composite, by optimizing the structure of the inorganic filler, the inorganic filler has different properties of insulativity and conductivity, the volume proportion of the inorganic filler is lowered,the dielectric constant can also be increased, and the dielectric loss can be lowered.

Description

technical field [0001] The invention belongs to the technical field of electronic composite material preparation, and in particular relates to a resin-based composite material and a preparation method thereof. Background technique [0002] With the development of today's electronic circuits in the direction of miniaturization, integration, and lightweight, people have put forward higher requirements for the electromagnetic properties, mechanical properties, thermal properties, cost, and processability of materials used in the preparation of electronic circuits. . In order to meet multiple requirements at the same time, the research of organic-inorganic composite materials has been paid more and more attention. As we all know, the advantages of organic materials are low cost and easy molding, but the disadvantages are poor mechanical properties and heat resistance, and small dielectric constant, which is not conducive to the miniaturization of electronic circuits, especially...

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Problems solved by technology

[0003] At present, a problem existing in organic-inorganic composite materials is that people find that when inorganic fillers with high dielectric constant are added to the organic matrix to improve the dielectric constant of the composite material, it is often necessary to add distant fillers to the organic matrix. Inorganic fillers in excess of theoretically predicted proportions

In addition, people have also found that based on the percolation theory, a small proportion of conductive fillers can be used to greatly increase the dielectric constant of the composite material, but the problem with conductive fillers is that the leakage current is too large, which often causes the dielectric loss of the composite material very big

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