Polymer-based carbon conductivity macromolecule composite material

Abstract

The invention provides a polymer-based carbon-based conductive polymer composite material. The raw material composition mainly includes a polymer as a matrix of the composite material and a carbon-based conductive filler dispersed in the polymer. The matrix polymer and the carbon-based conductive filler are both Composed of no less than two different types of materials, and at least one phase of the polar polymer and the non-polar polymer in the polymer, the weight content of the carbon-based conductive material in the composite material is controlled within the range of 0.1 to 50%. . The present invention reduces the amount of filler and improves the conductivity of the material through the non-uniform distribution of the conductive filler in the two-phase polymer, and uses two carbon materials with different spatial geometry as the conductive filler to form a more complete and stable conductive network structure to further improve the electrical conductivity of the material. The invention has the advantages of low conductive filler content, high electrical conductivity, good processing performance and mechanical performance, high electrical conductivity, and flexible adjustment of processing performance and mechanical performance according to needs.

Description

1. Technical field [0001] The invention relates to the technical field of conductive composite materials, and more specifically relates to a conductive polymer composite material composed of a polymer matrix and conductive fillers dispersed in the polymer. 2. Background technology [0002] Composite conductive polymer material refers to a multi-phase composite material with conductive function composed of polymers and various conductive fillers through different composite processes. It not only has conductive function, but also has the advantages of polymer materials. Compared with structural conductive polymer materials, it has the characteristics of stable and durable electrical conductivity, sufficient source of raw materials, better process controllability, easy industrial continuous production, non-toxic and non-corrosive, and low manufacturing cost. , electromagnetic shielding and electrochemical fields have a wide range of uses. With the modernization of science and ...

AI Technical Summary

Problems solved by technology

The poor bonding between the conductive filler and the matrix resin will greatly reduce the mechanical properties of the formed conductive composite product

③The conductive filler with high filling content will cause environmental pollution due to the shedding of the conductive filler during the use of its products

However, the conductive polymer composite material prepared by using the incompatible two-phase polymer as the matrix in the prior art has not achieved the expected purpose of its development and research. The rate is still relatively high, or the content of conductive filler is still high, or the resistivity of the material is reduced, but the mechanical properties of the material are also greatly reduced