Biochar integration in carbon fiber/epoxy‐phenolic Systems for Enhanced Properties

Abstract Although Carbon Fiber Reinforced Polymers (CFRPs) are recognized for their remarkable strength‐to‐weight ratio, their overall performance is sometimes limited by the thermal and mechanical constraints of traditional epoxy resins. This study directly targets these deficiencies by developing a next‐generation composite based on an advanced epoxy‐phenolic resin matrix. This complicated matrix functions as the high‐performance basis of our system, chosen expressly for its superior heat stability, chemical resistance, and toughness relative to conventional epoxies. Initiating with a more substantial matrix yields a more durable composite from the beginning. We are using wood‐derived biochar as a sustainable, useful filler to enhance this system. This work examines the potent synergistic interactions among three essential components: the reinforcing carbon fibers, the durable epoxy‐phenolic matrix, and the multifunctional biochar. Our study entails precisely regulated pyrolysis to generate superior biochar and a comprehensive examination of its effects on the composite's interfacial dynamics and overall efficacy. This study seeks to illustrate how biochar, incorporated inside a meticulously chosen epoxy‐phenolic matrix, may substitute industrial carbon black. The objective is to develop ecologically friendly, high‐performance composites with improved mechanical properties and functions, aiding in the achievement of net‐zero carbon emission goals.