Discoid liquid crystal molecule functional modifier, preparation method therefor and use thereof

Abstract

Provided are a discoid liquid crystal molecule functional modifier, a preparation method therefor and use thereof. A discoid liquid crystal molecule functional modifier is first synthesized by using a trimesoyl chloride monomer and a flexible carbon chain compound with an amino group as raw materials; and then the prepared discoid liquid crystal molecule functional modifier is mixed with a polymer matrix, and a composite film material with good performance is prepared by means of a tape casting method or a melt extrusion method. By using the discoid liquid crystal molecule functional modifier, the crystalline structure of a polymer is effectively adjusted and controlled, the grain size of the polymer is reduced, the content of a β phase is increased, and an interface interaction between the discoid liquid crystal molecule functional modifier and the polymer matrix is increased, such that the dielectric constant, the breakdown field strength, the mechanical properties and the energy storage density of the composite film material are improved. The discoid liquid crystal molecule functional modifier has the advantages of readily available raw materials, simple synthesis method, adjustable and controllable size, high yield, less dosage, easy purification and the like, is suitable for industrial production, and has good application prospect in the aspects of adjusting and controlling the crystalline structure and performance of the polymer film material.

Dependencies are inferred from the claim text.