Impact Toughness of Carbon Fiber-Reinforced Polymers under Extremely Low Arctic Temperature Conditions: The Role of Hybrid Matrix Components

• Published in: Russian metallurgy Metally Vol. 2023; no. 13; pp. 2167 - 2172
• Main Authors: Kosenko, E. A., Baurova, N. I., Zorin, V. A.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.12.2023; Springer Nature B.V
• Subjects: Carbon fiber reinforced plastics; Carbon-epoxy composites; Chemistry and Materials Science; Composite structures; Elastomers; Fiber reinforced polymers; Impact strength; Liquid phases; Materials Science; Metallic Materials; New Materials. Technology of Composite Materials; Stability; Toughness; Waxes; Charpy; polymer composite materials; impact toughness; the Arctic; negative temperatures; hybrid matrix; carbon fiber-reinforced plastics
• ISSN: 0036-0295; 1555-6255; 1531-8648
• DOI: 10.1134/S0036029523700246

We present the results of impact toughness testing of carbon fiber-reinforced plastics based on an epoxy matrix and components forming an independent liquid phase in a composite structure (Loctite 638 anaerobic polymer material, Unisil-9628 silicone elastomer, synthetic wax). The tests were conducted after samples were held at temperatures of 20 ± 2, –30, and –50°C using the Charpy method for an impact direction perpendicular to the plane. Using an anaerobic polymer material as a component of the liquid phase in a hybrid matrix yields the highest impact toughness among the comparable types of carbon fiber-reinforced plastics and ensures the stability of this characteristic after holding at –50°C. The inclusion of synthetic wax in the composite matrix provides stability in impact toughness after storage at –30°C. Carbon fiber-reinforced plastic samples containing silicone elastomer in the hybrid matrix exhibit the lowest impact toughness after holding at various temperatures.