DOI: 10.52150/2522-9117-2025-39-17
V. V. Vysnevetskyi1,*, Ph. D. Student, ORCID 0009-0000-2516-4261
1 Dnipro University of Technology, Dmytra Yavornytskoho Avenue, 19, Dnipro, 49005, Ukraine
* Corresponding author: vyshnevetskyi.v.v@nmu.one
INFLUENCE OF CARBON FILLER SURFACE MODIFICATION ON INTERFACIAL ADHESION IN THERMOPLASTIC CFRTP COMPOSITES (REVIEW)
Abstract. Introduction. Carbon-fiber-reinforced thermoplastic composites (CFRTP) occupy a special place among modern structural materials due to their unique combination of high specific strength, corrosion resistance, and recyclability. Relevance.Their use is becoming increasingly significant in the aviation, automotive, energy, and medical industries, where higher requirements are imposed on wear resistance, durability, and process controllability during manufacturing. However, one of the key scientific and technical challenges remains ensuring an adequate level of interfacial adhesion between carbon fiber (CF) and the polymer matrix, which determines the overall set of mechanical properties and the functional reliability of the final material. Objective:To analyze the literature and systematize data on modern methods of surface treatment of carbon fiber filler in CFRTP, which are carried out to improve the adhesion between the reinforcing component and the thermoplastic matrix. Results.The study outlines the problem of insufficient adhesion due to the difference in material polarity and analyzes modern approaches to CF surface modification: chemical (acid, silane, isocyanate, radiation treatment), physical (plasma, microwave, metal coatings, application of nanostructured coatings), as well as the use of compatibilizers and coupling agents (MAPP, PPEK, copolymers). It is shown that such methods significantly increase adhesion at the fiber–matrix interface, which contributes to the improvement of the mechanical properties of CFRTP composites and expands their potential for engineering applications. The interaction patterns of surface-modified fibers with matrices such as polyamide-6, polyetheretherketone (PEEK), and polypropylene are characterized separately, demonstrating different levels of wettability and thermomechanical compatibility. Conclusion. Specialized technological approaches based on physical or chemical methods make it possible to enhance adhesion between the matrix and the filler in CFRTP, which in turn improves the properties of the composite and broadens the scope of its industrial applications.
Keywords: thermoplastic composite, carbon fiber, interface, surface treatment, surface modification, adhesion.
For citation: Vysnevetskyi, V. V. (2025). Influence of carbon filler surface modification on interfacial adhesion in thermoplastic CFRTP composites (Review). Fundamental and applied problems of ferrous metallurgy, 39, 285-295. https://doi.org/10.52150/2522-9117-2025-39-17
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Received 06.08.2025
Accepted 21.10.2025
Published online 01.12.2025
