Preparation method of single-layer porous graphene enhanced carbon fiber fishing rod

Abstract

The invention discloses a preparation method of a single-layer porous graphene enhanced carbon fiber fishing rod, and belongs to the technical field of high polymer materials. The preparation method is characterized by comprising the steps that expanded graphite is separated into graphene microfilm dispersible fluid at first, the graphene microfilm dispersible fluid is subjected to spray drying toform graphene microfilm powder, the powder is oxidized and subjected to microwave treatment in NMP dispersion fluid to prepare a single-layer porous graphene precursor, the precursor is activated through strong base, and single-layer porous graphene with many holes and the large hole diameter is obtained and compounded with carbon fiber to obtain a carbon fiber cloth material, and finally the material is cut and rolled to form the fishing rod. The carbon fiber can be easily wrapped by the single-layer porous graphene, an enough channel is provided for circulation of resin between the carbon fiber cloth, an organic whole with good continuity is formed between the graphene and the carbon fiber and between the carbon fiber, so that the stretching bending strength of the carbon fiber fishingrod is greatly improved, and the fishing weight of the fishing rod is remarkably improved.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a method for preparing a single-layer porous graphene-reinforced carbon fiber fishing rod. Background technique [0002] The existing carbon fishing rods are made of different grades of carbon fiber cloth and fixed on the set mold through the coiling machine, and are cured at high temperature per unit time. The carbon fiber cloth is usually pre-impregnated with carbon fiber tow. made of resin. The fishing rod made by this technology has the characteristics of lightness, stiffness and good resilience. Most of the high-end fishing rods at home and abroad use this technology; The hanging strength within 45 degrees is better, but the twisting strength at 90 degrees is lower. [0003] The current ordinary fishing rod is used under long-term high-strength and high-frequency conditions, and its strength and toughness will decrease relatively quickly, and its resistance to in...

AI Technical Summary

Problems solved by technology

However, the carbon fiber cloth prepared by this method also has the following problems when applied to fishing rods: due to the excellent barrier properties of the graphene sheet, the carbon fiber cloth needs to be heated and solidified in a curing furnace in a stepwise manner after being wound into a fishing rod. The purpose of using low-temperature heating in the early stage is to allow the resin to circulate between the carbon fibers, so that the resin in the carbon fibers is uniform and bonded into a whole, and the barrier effect of graphene will hinder the circulation of the resin between the carbon fiber and the graphene, and even hinder the flow of the resin in the carbon fiber. The circulation between layers leads to insufficient connection force between graphene and carbon fiber, and it is easy to break under high-frequency and high-strength use after being made into a fishing rod

[0005] In addition, due to the low surface activity of carbon fibers and poor wettability with the resin matrix, it is easy to reduce the interlaminar shear strength of composite materials. The Chinese invention patent with the notification number CN102787488B discloses a method for modifying carbon fibers on the surface of graphene oxide paper. By functionalizing graphene oxide, graphene oxide can be evenly covered on the surface of carbon fiber, which greatly improves the roughness of carbon fiber surface, thereby improving the interfacial properties of carbon fiber reinforced composites through anchoring.

However, the carbon fiber composite material prepared by this method also has the following problems when used for fishing rods: the oxygen-containing functional groups on the surface of graphene oxide will react with the additives in the carbon fiber cloth, which will affect the comprehensive performance of coating and carbon fiber cloth. The quasi-functional group will also react with the release agent on the mold, resulting in the inability of the fishing rod body to separate from the mold, so the composite material prepared by this process is not suitable for the production of fishing rods