Evaluation method for modified gutta-pereha shape memory performance

Abstract

The invention discloses an evaluation method for modified gutta-pereha shape memory performance, belongs to the technical field of material performance evaluation, and solves the problems that an evaluation method for gutta-pereha shape memory performance is in shortage, a shape memory performance testing method for a shape memory polymer is single and a test specimen preparation process and an operation method are complex so as to be unfavorable for an experiment operation. The evaluation method comprises the following steps that: firstly, preparing shape memory modified gutta-pereha, and preparing the shape memory modified gutta-pereha into a cylindrical test specimen; then, utilizing a related instrument to carry out a compression test, and measuring the height of the test specimen after the modified gutta-pereha is compressed and restored under different operation steps; and finally, taking a shape fixed rate and a shape recovery rate to evaluate the shape memory performance of themodified gutta-pereha, and on the basis, further optimizing a modified gutta-pereha formula. By use of the evaluation method for the modified gutta-pereha shape memory performance, the problem that the shortage of a modified gutta-pereha shape memory performance testing method is solved, and the shape memory polymer is enriched.

Description

technical field [0001] The invention relates to a method for evaluating the shape memory performance of modified eucommia gum, belonging to the technical field of material performance evaluation. Background technique [0002] In recent years, with the development of science and technology and the continuous progress of human society, materials have played an increasingly important role in human production and life. People have higher and higher requirements for materials, and various new materials have been derived. , shape memory materials are typical representatives of them. Due to its excellent performance and broad application prospects, shape memory materials have been vigorously developed in various countries. Shape memory materials are those that respond to changes in the external environment (such as heat, light, electricity, magnetism, solvents, etc.), so that their own state parameters (such as shape, stress, and strain, etc.) change and return to the original sta...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide an evaluation method for the shape memory performance of modified eucommia gum, which solves the lack of an evaluation method for the shape memory performance of eucommia gum, and the shape memory performance test method of shape memory polymers is relatively simple, and the preparation process and operation of the test piece The method is cumbersome, which is not conducive to the problem of experimental operation

[0011] In order to solve the current lack of evaluation methods for the shape memory properties of eucommia gum, and the relatively simple test methods for the shape memory properties of shape memory polymers, the preparation process and operation methods of the test pieces are relatively cumbersome, which is not conducive to the experimental operation.