Carbon fiber-reinforced polyformaldehyde composite material with high fluidity and preparation method of carbon fiber-reinforced polyformaldehyde composite material

Abstract

The invention discloses a carbon fiber-reinforced polyformaldehyde composite material with high fluidity and a preparation method of the carbon fiber-reinforced polyformaldehyde composite material. The carbon fiber-reinforced polyformaldehyde composite material is characterized by being prepared from the following raw materials in parts by weight: 90-100 parts of polyformaldehyde, 10-30 parts of carbon fiber, 0.4-0.6 part of polyethylene wax, 0.2-0.4 part of dual 12-carbon alcohol ester, 0.5-1 part of propylene glycol monostearate, 4-7 parts of silicone powder, 0.3-0.6 part of a silane coupling agent KH-570, 2-4 parts of graphene oxide and 2-3 parts of nanosilicon dioxide. The added carbon fiber is evenly dispersed in polyformaldehyde after being preheated, so that the comprehensive performance of the material is improved; the fluidity of polyformaldehyde plastic is improved by the added treated silicone powder and propylene glycol monostearate; the phenomena of sticking and blocking in an extruder are avoided; convenience is brought for processing; resources are saved; and the working efficiency is improved.

Description

technical field [0001] The invention relates to a highly fluid carbon fiber reinforced polyoxymethylene composite material and a preparation method thereof, belonging to the technical field of plastic production. Background technique [0002] As one of engineering plastics, polyoxymethylene is a high-density, highly crystalline linear polymer with high strength and modulus, good wear resistance, chemical corrosion resistance, creep resistance, fatigue resistance, and products Good dimensional stability and other characteristics, it is an ideal material to replace copper, zinc, aluminum and alloy products, and is widely used in automobile manufacturing, electrical and electronic, machinery, chemical and other fields. Most of the existing polyoxymethylene products in my country are general-purpose. In order to improve the use of products in the aerospace field, it must be transferred to high-end modified polyoxymethylene. Generally, it is modified in the form of composite mat...

AI Technical Summary

Problems solved by technology

[0003] Many existing studies mostly use glass fiber reinforced polyoxymethylene to prepare polyoxymethylene composite materials, but there are few reports on the preparation of polyoxymethylene composite materials with high strength, high modulus, and high heat resistance using carbon fiber as a reinforcement.