1、Interface Strengthening of Carbon Fiber/Epoxy Resin Composites via

It first analyzes the intrinsic issues of the CFRP interface (e.g., internal stress, uneven wetting, brittleness) and outlines multi-scale innovative characterization technologies enabling interfacial property quantification and mechanism investigation.

2、Interfacial characterization, control and modification of carbon fiber

The interface should be modified and carefully controlled, which can be through by increasing the surface polarity of carbon fiber, improving the wettability between carbon fiber and resin, as well as promoting the chemical reaction.

3、Advances in effects of carbon fiber surface modification on interface

However, the intrinsic chemical inertness, smooth surface, and low surface energy of carbon fibers (CF) lead to weak interfacial adhesion with resin matrices. This poor adhesion critically restricts the overall mechanical properties of the composites and long-term durability.

4、Progress in interface modification and application of carbon fiber

Furthermore， this article delved into the compatibility between carbon fiber and resin matrix from the respective performance characteristics of thermosetting and thermoplastic resins， and proposed different solutions.

5、Modification of Carbon Fiber Surfaces Using Dopamine

In this paper, the mechanism of dopamine (DA)-modifying carbon fiber surfaces and the influence of modification conditions on the modification effect were explored.

多孔材料改性碳纤维及其增强复合材料界面性能研究进展

Abstract: Carbon fiber reinforced epoxy resin matrix composites with light weight and high strength are widely used in aerospace, transportation, energy and other fields. The composition and...

Panoramic View of Interface

The thermo-oxidative aging mechanism of carbon fiber-reinforced epoxy (CF/EP) composites was studied by using reactive molecular dynamics (RMD) simulations with a reactive force field (ReaxFF), traditional molecular dynamics (MD) simulation, and machine learning (ML) methods.

Recent advances in interface microscopic characterization of carbon

In this paper, the microscopic characterization methods of CFRPs are reviewed to provide theoretical guidance for optimizing the interface and improving the mechanical properties of CFRPs. Schematic diagram of interface microscopic characterization methods of CFRPs.

Recent Developments at the Interface of Carbon Fiber‐Reinforced Polymer

In this paper, the most recent and comprehensive composite interface theories, CF surface modification methods, and their research levels are systematically reviewed.

Advances in Toughening Modifications of Carbon Fiber/Epoxy Resin

This paper reviews the research progress of toughening and modification of carbon fiber/epoxy resin matrix composites in recent years, focuses on resin modification, interface modification and structural design, and looks forward to the future research directions.

In modern materials science and engineering, carbon fiber composites are widely used in aerospace, automotive manufacturing, sports equipment, and other fields due to their excellent mechanical properties, lightweight and high-strength characteristics, and good corrosion resistance. the widespread application of these high-performance materials also faces a common challenge: the poor compatibility between carbon fibers and resin matrices, which limits further optimization and expanded application of composites. research on interface modification techniques between carbon fibers and resins is particularly important.

The interface issue between carbon fibers and resins is one of the key factors affecting the performance of composites. The surfaces of carbon fibers typically contain a large number of polar functional groups such as hydroxyl and carboxyl groups. These polar groups can interact with non-polar groups in the resin, leading to insufficient adhesion between them and thus reducing the overall performance of the composite. To improve this situation, researchers have proposed various interface modification methods, including surface treatment, chemical grafting, and in-situ polymerization.

Surface treatment is a common method to enhance the adhesive strength between carbon fibers and resins. By altering the surface properties of carbon fibers through physical or chemical means, their surface polarity can be effectively reduced, thereby enhancing their affinity with the resin matrix. For example, surface treatment with silane coupling agents can introduce more siloxane bonds onto the carbon fiber surface, strengthening the chemical bonding with the resin matrix and thus improving interfacial adhesion strength.

Chemical grafting is a more advanced interface modification technique. It involves introducing monomers or prepolymers with special functional groups onto the carbon fiber surface through chemical reactions, forming a new polymer layer to improve the interaction between carbon fibers and resins. This method not only increases interfacial adhesion strength but also imparts additional properties to the composite, such as self-healing capabilities and UV aging resistance.

In-situ polymerization is an innovative interface modification technique that utilizes active groups on the carbon fiber surface to directly initiate polymerization reactions, forming a polymer layer on the carbon fiber surface. This approach allows for rapid and efficient interface modification while avoiding defects like microcracks and voids that may arise from traditional methods.

In addition to the commonly used interface modification methods mentioned above, other techniques have also been studied and applied to modify the interface between carbon fibers and resins. For instance, surface modification of carbon fibers with nano-fillers can improve interfacial adhesion with the resin matrix; using electrospinning technology to prepare nanofiber membranes as interfacial modifiers can further enhance composite performance.

interface modification between carbon fibers and resins is a complex and critical research area. Effective treatment and modification of carbon fiber surfaces can significantly improve the mechanical properties, durability, and environmental adaptability of composites. With advancements in science and technology and the development of new materials, we have reason to believe that interface modification techniques between carbon fibers and resins will be studied and applied more deeply, contributing greater progress to the field of composite materials.