Method for preparing composite dielectric elastomers with high charge induction properties

Abstract

The invention relates to a method for preparing composite dielectric elastomers with high charge induction properties, and belongs to the field of technologies for preparing dielectric elastomers. By the aid of the method, the problems of low dielectric constants and weak charge induction of currently prepared composite dielectric elastomers with silicone rubber due to the fact that the silicone rubber comprises non-polar molecules can be solved. The method has the advantages that magnetic hydrogel particles are prepared, humic acid solution can be adsorbed and dried by the hydrogel particles to obtain gel particles with abundant humic acid, ligands with negative electricity can be provided by the humic acid during reaction, complexation can be carried out on the ligands and metal ions with positive charge, ligand effects can be directly realized, accordingly the electric properties can be affected, and the charge response speeds of the dielectric composite elastomers with silicone rubber can be subsequently affected; the composite dielectric elastomers with the high charge induction properties are filled with the humic acid adsorption gel particles, accordingly, the mechanical properties of the composite dielectric elastomers which are composite materials can be improved, the composite materials are high in electrodeformation under the condition of low voltages, and the method includes simple preparation steps, is green and safe and is free of pollution.

Description

technical field [0001] The invention relates to a preparation method of a strong charge-sensitive composite dielectric elastomer, belonging to the technical field of dielectric elastomer preparation. Background technique [0002] With the continuous development of high technology, new material technology has become a frontier field of hot exploration and research by scientists, and is the pillar of modern scientific and technological development. Material technology is the key to restricting the development of all engineering fields, and the innovation of new materials leads the emergence and development of revolutionary new technologies. Among them, dielectric materials are a very important class of materials among many new materials, and are the necessary material basis for people's life and production. In a broad sense, dielectric materials refer to all substances that can establish polarization under the action of an electric field. The discovery of ultra-pure semicond...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the problem that the silicone rubber composite dielectric elastomer prepared in the prior art has a low dielectric constant and weak charge induction due to the non-polar molecule of silicone rubber, provide A method of preparing magnetic hydrogel particles, absorbing and drying the humic acid solution to prepare humic acid-rich gel particles, because humic acid provides negatively charged ligands in the reaction to interact with positively charged The metal ion complexation of the charge can directly act as a ligand, so it can affect the electrical properties, and then affect the response rate of the silicone rubber dielectric composite elastomer to the charge, effectively improving the low dielectric constant of the composite dielectric elastomer, and the charge induction. weaker question