A preparing method of a tree-form silicone rubber dielectric elastomer material

Abstract

The invention discloses a preparing method of a tree-form silicone rubber dielectric elastomer material, and belongs to the technical field of dielectric elastomer materials. The method includes weighing methylphenyldichlorosilane and dimethyldichlorosilane, reacting, collecting an organic layer, adding potassium hydroxide, reacting continuously, reacting with siloxane and 3-aminopropyltriethoxysilane, esterifying with methyl acrylate, end-capping with diethylamine, extracting with acetone to prepare a tree-form silicone rubber acetone solution, keeping for later use, subjecting a processed barium titanate dispersing liquid and sodium alginate to ultrasonic dispersion and other types of operation to obtain particles, stirring the particles and the tree-form silicone rubber acetone solution, adding dibutyl phosphate and the like, adding into a mold, curing and demolding to obtain the tree-form silicone rubber dielectric elastomer material. By utilizing interface functions of sodium alginate particles and a silicone rubber composite material, filler dispersion is effectively improved, dielectric performance and electrodeformation performance of the composite material are obviously improved, and the dielectric elastomer material has high using value.

Description

technical field [0001] The invention discloses a preparation method of a tree-shaped organosilicon rubber dielectric elastomer material, which belongs to the technical field of dielectric elastomer materials. Background technique [0002] Dielectric elastomers are the most potential electric field active polymer materials for active actuators. Electroactive polymer is a new type of intelligent polymer material, which can undergo deformation such as stretching, bending, tightening or expansion under the action of an external electric field through the change of the internal structure of the material. It can produce a strong displacement, but requires a high field strength of the excitation electric field. With the continuous development of precision manufacturing and microelectronics technology, people put forward higher and higher requirements for modern drives, which will have large driving force, large output displacement, high operating frequency, fast response speed, st...

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention: In view of the defects of poor electro-deformation performance, high driving voltage, and high electrode resistance of traditional dielectric elastomer materials, the present invention uses methylphenyldichlorosilane and dimethyl Dichlorosilane reaction, after collecting the organic layer, add potassium hydroxide to continue the reaction, then react with siloxane and 3-aminopropyltriethoxysilane, then esterify with methyl acrylate, and end-cap with diethylamine , and then extracted with acetone to prepare a dendritic silicone rubber acetone solution for later use, take the treated barium titanate dispersion and sodium alginate for ultrasonic dispersion, filter, calcinate, and ball mill, and stir the obtained particles with the dendritic silicone rubber acetone solution, Finally, add dibutyl phosphate etc. and place it in the mold for curing and demoulding to obtain a tree-shaped silicone rubber dielectric elastomer material. The invention utilizes the interfacial interaction between sodium alginate particles and the silicone rubber composite material to effectively Improve the dispersion of fillers, significantly improve the dielectric properties and electro-deformation properties of composite materials, and have better use value