Novel regenerated carbon fiber felt reinforcement and preparation method thereof

Abstract

The invention relates to a novel regenerated carbon fiber felt reinforcement and a preparation method thereof. The preparation method comprises the following steps that (1) a surfactant, an anti-foaming agent and hydroxyethyl cellulose are prepared into a felt-making solution; (2) regenerated carbon fibers are cut up into short carbon fibers with uniform lengths; (3) the prepared felt-making solution is poured into a cylindrical container, and then the prepared felt-making solution is placed into an inner-layer sieve; the cut regenerated carbon fibers is put into a sieve, the regenerated carbon fibers are dispersed by a stirrer, and felt stirring and preparing are carried out; and (4) the sieve is taken out, put into a drying oven for drying, the carbon fiber felt is taken out on the wallof the sieve, the carbon fiber felt is put into the drying oven, drying is carried out at a high temperature, and the regenerated carbon fiber felt reinforcement can be obtained after the drying is carried out. Compared with the prior art, the method aims at the characteristics of the regenerated carbon fibers, so that the problems that the regenerated carbon fibers are not easy to form, uniformity is poor in a felt manufacturing process are solved; and the manufacturing technology and the process are simple, and the production efficiency is high.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a carbon fiber felt reinforcement used in the field of carbon fiber reinforced composite materials. Background technique [0002] Carbon fiber reinforced thermosetting resin and thermoplastic resin composite materials are increasingly replacing metal materials and are widely used in aircraft, automobiles, wind power generation and other fields. However, the biggest challenge facing carbon fiber composite materials is recycling. Separating, recycling and reusing carbon fibers in composite materials is of great significance to environmental protection, energy saving and emission reduction, and sustainable development. In order to make the carbon fiber have a better reinforcing effect in the resin matrix, long carbon fibers are usually used to reinforce the resin matrix. However, due to the recycling process, the recycled carbon fiber cannot obtain a uniform length, and ...

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Problems solved by technology

Current patents such as CN101591178A and CN103568385A use new carbon fibers, but new carbon fibers are expensive, resulting in higher cost of carbon fiber felts, which directly limits its wide application

Patents such as CN101948327A, CN1354292A, the felting method used needs to prepare intermediates first, and then solidify and shape, the process flow is complicated, and because the recycled carbon fiber has already been formed, the method is not applicable to the recycled carbon fiber felt