Blended fabric for thermoplastic fiber reinforced composite materials and preparing method of blended fabric

Abstract

The invention relates to blended fabric for thermoplastic fiber reinforced composite materials and a preparing method of the blended fabric. The blended fabric is characterized in that a reinforcing fiber and a thermoplastic matrix fiber are doubled in a form of filaments or are mutually uniformly blended to be processed into yarns by a spinning technology, the yarns are taken as warp yarns and weft yarns to be mutually interweaved to form the fabric, and the thermoplastic matrix fibers in the warp yarns and the weft yarns are fused through a subsequent process and are well combined with the reinforcing fibers so as to prepare a composite material product. The reinforcing fiber is one of a carbon fiber, an aramid fiber and a glass fiber. The thermoplastic matrix fiber is one of polyester (PET), polyamide (PA) and polypropylene (PP). The blended fabric is subjected to the subsequent process to enable the thermoplastic matrix fibers in the warp yarns and the weft yarns to be fused and well combined with the reinforcing fiber, thus the composite material product is prepared.

Description

technical field [0001] The invention relates to a mixed braided fabric for composite materials, and in particular discloses a mixed braided fabric used for thermoplastic fiber reinforced composite materials and a preparation method thereof. The invention realizes the combination of a reinforcing material and a matrix through a weaving process. Background technique [0002] Currently, thermoplastic fiber-reinforced composites are usually achieved by preparing prepregs. Its preparation process is very cumbersome. First, continuous fiber reinforced materials must be produced through textile technology, and then combined with matrix materials to obtain prepregs through several methods, such as solution method, melting method, film method, fluidized bed method, etc. In the solution method, the matrix is ​​dissolved in a solvent and then impregnated with reinforcing materials, which has environmental problems such as low matrix utilization, solvent volatilization, and recycling. ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of uneven prepreg, environmental protection, complex production process, etc. existing in the prepreg production method of thermoplastic composite materials in the prior art, and propose a mixed braided fabric for thermoplastic fiber reinforced composite materials and Its preparation method is a method of uniformly adding thermoplastic matrix fibers in the preparation process of continuous fiber reinforced materials, thereby eliminating the prepreg preparation process, and the fabricated fabric can be directly molded into products

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