Temperature-sensitive color-changing shape-memory material indicating deformation temperature and preparation method thereof

Abstract

Disclosed are a temperature-sensitive color-changing shape-memory material indicating deformation temperature and a preparation method thereof, belonging to the technical field of polymer materials. The material includes a masterbatch, an auxiliary material and a color-changing pigment that changes with temperature, wherein the master batch includes polycaprolactone, the amount of the auxiliary material includes a filler, and the value range of the color-changing temperature of the color-changing pigment that changes with temperature is the same as that of the master batch. The value range of the deformation temperature is the same; the addition amount of the auxiliary material is 5%-23% of the mass of the master batch, and the addition amount of the color-changing pigment that changes with temperature is 2%-10% of the mass of the master batch. The method includes putting the masterbatch into the internal mixer for the first internal mixing; adding color-changing pigments and auxiliary materials that change with the temperature in the same range as the deformation temperature of the masterbatch; putting the masterbatch into the internal mixer for the second internal mixing ; After vulcanization, the temperature-sensitive color-changing shape-memory material indicating the deformation temperature is obtained. It indicates the shape-memory material shape-change transition point by a color change at the shape-change transition point of the shape-memory material.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a temperature-sensitive color-changing shape-memory material indicating deformation temperature and a preparation method thereof. Background technique [0002] Most of the shape memory materials in the prior art are polymer materials. In general, the deformation of shape memory materials is mostly temperature-sensitive materials. Once the temperature of the material reaches the deformation temperature of the material, the shape of the material will be However, in the process of thermal deformation of the shape memory material, the deformation temperature of the shape memory material can only be indirectly indicated by the ambient temperature of the material that causes the deformation of the shape memory material. There are differences in the temperature of the shape memory material itself, and the temperature corresponding to the shape transformation point of the shape...

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Problems solved by technology

[0002] Most of the shape memory materials in the prior art are polymer materials. In general, the deformation of shape memory materials is mostly temperature-sensitive materials. Once the temperature of the material reaches the deformation temperature of the material, the shape of the material will be However, in the process of thermal deformation of the shape memory material, the deformation temperature of the shape memory material can only be indirectly indicated by the ambient temperature of the material that causes the deformation of the shape memory material. There are differences in the temperature of the shape memory material itself, and the temperature corresponding to the shape transformation point of the shape memory material indicated in this way is not accurate

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