Stiffening and wear-resistant low-melt-point polyester composite material and preparation method and application thereof

Abstract

The invention discloses a stiffening and wear-resistant low-melt-point polyester composite material and a preparation method and an application thereof. The method includes steps of: preparing severalbinary acid and dihydric alcohol raw materials, and mixing the raw materials with a catalyst and an additive to prepare a pre-polymerization raw material; performing esterification polymerization reaction to form the copolymerized ester, which is the low-melt-point polyester composite material. The material is a creative environment-friendly material and can be drawn into fiber filaments, which can be woven or knitted with other common fibers into fabrics; viscosity of the copolymerized ester can be released by means of hot-press melting at specific temperature, so that the fiber filaments are tightly combined with the common fibers; according to the features of the copolymerized ester, the product is stiffening and has reinforced wear-resistance. By means of the features of the copolymerized ester, the material is drawn into the fiber filaments, which can be combined with materials such as common fibers or fabrics, thus manufacturing environment-friendly products, such as shoes, leather bags and the like, which are wear-resistant and durable. The material can be completely recovered and is free of environment pollution after the products are wasted.

Description

technical field [0001] The invention relates to a low-melting-point polyester composite material with stiff and wear-resistant properties and its preparation method and application. The method includes firstly blending several kinds of dibasic acid and dibasic alcohol raw materials and mixing them into pre-polymerized raw materials, and then through ester After chemical polymerization, it becomes a copolyester, and then the copolyester is drawn and combined with ordinary fibers to form a recyclable environmentally friendly composite material. Background technique [0002] Common consumer products on the market include: shoes, leather bags, clothes, etc. In addition to leather, the uppers on shoes also use suede and plastic materials to make uppers. Among them, the woven fabric of sports shoes The main material of the thermal fuse currently used for cloth uppers is thermoplastic rubber (thermo plastic elastomer), referred to as TPU material, also known as thermoplastic elasto...

AI Technical Summary

Problems solved by technology

[0002] Common consumer products on the market include: shoes, leather bags, clothes, etc. In addition to leather, the uppers on shoes also use suede and plastic materials to make uppers. Among them, the woven fabric of sports shoes The main material of the thermal fuse currently used for cloth uppers is thermoplastic rubber (thermo plastic elastomer), referred to as TPU material, also known as thermoplastic elastomer. Its characteristic is that it shows rubber elasticity at room temperature, and it becomes plastic when heated. Polymer materials, so that it can be combined with woven materials (PET), suede leather, and plastic materials by taking advantage of its viscosity; however, due to the copolymerization of styrene-based raw materials in the TPU raw materials, it will produce strong black when burned. smoke, pollutes the air, and cannot be recycled, causing a great burden on the environment

In addition, due to the poor heat resistance, high price and easy deformation of the TPU material, the product price is high, the quality is not ideal, it is easy to crack and age, and the service life is short. It is affected by the price in the market, and its application is promoted. Restricted

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