Modified PC and carbon fiber composite material

Abstract

The invention relates to a modified PC and carbon fiber composite material. The modified PC and carbon fiber composite material is characterized by comprising the following components in percentages by mass: PC resin 60-70%, carbon fibers 30-35%, an antioxidant 0.5-0.8%, a lubricant 0.5-1%, a chain extender 0.5-0.8%, a compatilizer 3-3.5%, a fire retardant 3-5% and other auxiliary agents 1-2%. Themodified PC and carbon fiber composite material has the beneficial effects that the carbon fibers are modified by a titanate coupling agent, cohesiveness of the carbon fibers and the PC resin is improved, the surface polarity of the carbon fibers is improved, the adhesion force of the carbon fibers and a PC resin matrix is enhanced, and the obtained modified PC and carbon fiber composite materialhas the advantages of high strength, good toughness and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a modified PC and carbon fiber composite material. Background technique [0002] PC (Polycarbonate) is a thermoplastic engineering plastic with excellent comprehensive properties. It has outstanding impact resistance, creep resistance and dimensional stability. It can maintain high mechanical strength in a high temperature range and is non-toxic. , with excellent dielectric properties, is the engineering plastic with the fastest growth and the largest production capacity in recent years. But it also has some disadvantages, such as poor processing fluidity, susceptibility to stress cracking, sensitivity to notches, and poor wear resistance. Carbon fiber has high strength, high modulus, high temperature resistance, corrosion resistance, fatigue resistance, creep resistance, electrical conductivity, heat transfer and other characteristics. It is a typical high-tech produc...

AI Technical Summary

Problems solved by technology

Carbon fiber can be used as a reinforcing agent for filling engineering plastics and improving mechanical properties, but when filling modified resin composites with carbon fiber, high interlaminar shear strength (ILSS) is required, and the surface of carbon fiber without surface treatment is inert. The surface area is small, the edge active carbon atoms are few, the content of active functional groups is very small, the surface energy is low, and the wettability of the resin and the bonding of the two-phase interface are poor, and the interlaminar shear strength of carbon fiber and resin composites is low.