Stability adjustment method for carbon fiber epoxy resin sizing agent

Abstract

A stability adjustment method for a carbon fiber epoxy resin sizing agent includes the following steps: adding a nonionic surfactant to the carbon fiber epoxy resin sizing agent until a HLB value of the system is 9.67-13.30, followed by ultrasonic dispersion, thereby obtaining a highly dispersed and stable carbon fiber epoxy resin sizing agent. The method significantly improves the stability of the carbon fiber epoxy resin sizing agent, which can reduce the formation of small latex particle sedimentation during transportation and storage, minimize surface defects on carbon fibers after sizing, and consequently enhance the application performance of carbon fiber-reinforced epoxy resin matrix composites.

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