Carbon fiber reinforced nano composite material and preparation method thereof

Abstract

The invention discloses a carbon fiber reinforced nano composite material and a preparation method thereof. The carbon fiber reinforced nano composite material comprises the following raw materials by weight: 14-19 parts of polypropylene, 6-12 parts of carbon fibers, 5-7 parts of polyethylene, 5-10 parts of acetal resin, 2-4 parts of a plasticizer, 5-7 parts of an anti-aging agent, 2-4 parts of a lubricant, 2-4 parts of a flame retardant, 1-3 parts of a coloring agent, and 0.5-5 parts of nano cellulose, wherein the plasticizer is composed of octyl epoxy stearate and epoxidized soybean oil, the anti-aging agent is composed of a methyltin heat stabilizer and phosphite ester, the lubricant is composed of zinc stearate and N, N '-ethylidene bis stearamide, and the flame retardant is composed of bisphenol A-bis (diphenyl phosphate), melamine polyphosphate and 3-pentene-1-triphenyl phosphonium benzene sulfonate. The nano cellulose is prepared by treating natural cellulose with 2, 2, 6, 6-tetramethylpiperidine oxide, sodium bromide, sodium hypochlorite and sodium hydroxide. The benzenesulfonic acid 3-butene-1-triphenyl phosphonium salt is synthesized from benzenesulfonyl chloride, 3-pentene-1-alcohol and triphenylphosphine. The added carbon fibers have good rigidity strength, the impact strength of the product is improved, and the added nano cellulose enhances the mechanical toughness of the product, so that the mechanical property of the material is remarkably improved.

Description

technical field [0001] The invention relates to the technical field of carbon fiber composite materials, in particular to a carbon fiber reinforced nano composite material and a preparation method thereof. Background technique [0002] Carbon fiber refers to high-strength and high-modulus fibers with a carbon content of more than 90%. It is mainly made of acrylic fibers and viscose fibers, which are oxidized and carbonized at high temperatures. Due to its advantages of high temperature resistance, light weight, and high hardness, it is widely used in aerospace, advanced ships, rail transit vehicles, wind turbine blades, fuel cells, power cables, pressure vessels, and sports and leisure products. The carbon fiber reinforced composite polymer material obtained by compounding carbon fiber and commonly used plastics can combine the performance advantages of the two. In recent years, it has developed extremely rapidly and its applications are becoming more and more extensive. ...

AI Technical Summary

Problems solved by technology

[0003] At present, the common carbon fiber composite materials on the market are directly mixed with polymer matrix, carbon fiber and conventional additives to obtain products. Due to the characteristics of carbon fiber itself, there is a layer of colloidal film on the surface, which can prevent carbon fiber and polypropylene or The adhesion of polyethylene, the adhesion will decrease, it will be separated during use, the service life will be shortened, and unnecessary losses will be caused.

During the preparation process of carbon fiber composite plastics, it is impossible to ensure that all carbon fibers are wrapped inside polypropylene and polyethylene, and some carbon fibers will be exposed, and because of the nature of carbon fibers, the exposed carbon fibers will be damaged when exposed to sunlight. Finally, the overall performance of the product, especially the mechanical properties, is significantly reduced, so it is particularly important to invent a carbon fiber reinforced nanocomposite material and its preparation method

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