A carbon fiber composite cable core

Abstract

The invention relates to a carbon fiber composite cable core, comprising a load-bearing core (12) and a protective layer (13), the protective layer (13) is wrapped on the outside of the load-bearing core (12) through a winding process, and the load-bearing The core (12) is a compound of epoxy resin with high temperature resistance and high mechanical performance and carbon fiber, and the protective layer (13) is a compound of epoxy resin composition with high temperature resistance and weather resistance and glass fiber. The invention adopts the blended epoxy resin of hydantoin epoxy resin and low-viscosity epoxy resin as the resin matrix, which not only meets the requirement of glass fiber for low viscosity of the resin, but also enables the cable core to have excellent high-temperature resistance.

Description

technical field [0001] The invention relates to a cable core, in particular to a carbon fiber composite material cable core. Background technique [0002] As a substitute for traditional steel cores, carbon fiber composite cable cores are required to have excellent mechanical properties, high temperature resistance, UV resistance, and aging resistance due to long-term work in harsh conditions such as high temperature in the field, sunshine, and climate change. , the comprehensive performance requirements of the cable core are very high. [0003] The traditional carbon fiber composite cable core structure is a load-bearing core made of carbon fiber and epoxy resin composite material inside, and a protective layer made of glass fiber and epoxy resin composite outside, both of which share the same resin system. Under the same resin system, properties such as high temperature resistance, tensile strength, flexural strength, modulus, compressive strength, UV resistance, and agin...

AI Technical Summary

Problems solved by technology

[0004] Because the resin curing system at room temperature (18-25°C) often reacts too slowly, the efficiency is not high, and the reaction is not complete, so the room temperature curing epoxy system has many disadvantages, such as epoxy resin is mostly brittle after curing, and there is insufficient toughness The disadvantages are that the performance of the reinforced fiber cannot be effectively exerted, and the composite material is often destroyed due to the premature failure of the epoxy resin when bearing the load.

[0005] In addition, the room temperature curing system is mostly cured at room temperature, and the high temperature resistance of the cured product is poor, so it cannot be applied to medium and high temperature environments or occasions with high temperature requirements

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