Negative poisson ratio textile composite material forming mold and method

Abstract

The invention relates to a negative poisson ratio textile composite material forming mold. The negative poisson ratio textile composite material forming mold comprises a female mold and a male mold. The female mold comprises a forming groove and a heating plate. The forming groove comprises a structure groove and a first drainage groove, wherein the structure groove is provided with a negative poisson ratio structure. The heating plate is located on the back surface of the forming groove and used for heating melting of a base material. The male mold comprises an extrusion mold. The extrusion mold comprises a convex groove and a second drainage groove. The size and the shape of the convex groove are matched with those of the structure groove, and thus the convex groove and the structure groove can be coupled to each other. The first drainage groove and the second drainage groove are used for controlling viscous liquid to flow into and flow out of the structure groove. The invention further relates to an application method of the negative poisson ratio textile composite material forming mold. According to the negative poisson ratio textile composite material forming mold and the application method thereof, a two-dimensional textile composite material or three-dimensional textile composite material with the negative poisson ratio effect can be conveniently and rapidly made.

Description

technical field [0001] The invention relates to the technical field of textile materials, in particular to a negative Poisson's ratio textile composite material molding die. Background technique [0002] A variety of substances with negative Poisson's ratio effects have been found in nature. After research, it has been found that materials with negative Poisson's ratio effects have special properties that traditional materials do not have, and their shear stiffness, fracture toughness, compressive capacity, and isotropic curvature Compared with traditional materials, its energy absorption capacity and permeability have been improved. These excellent mechanical properties make negative Poisson's ratio materials have potential applications in the fields of automobile industry, human body protection, aerospace, biomedicine and national defense. [0003] Lakes proposed in 1993 that the composite material structure with a certain ply has the property of negative Poisson's ratio....

AI Technical Summary

Problems solved by technology

[0006] In a word, the current research on negative Poisson’s ratio structural materials is mostly concentrated on foam and polymer materials, and there are few reports on textile materials. Although there are related two-dimensional negative Poisson’s structure textile materials. The plane auxetic effect, but the production is cumbersome, the production efficiency is low, and it needs specially improved knitting equipment, the cost is high, and it is difficult to meet the large demand in the market

Images