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Strength analysis of carbon fiber reinforced PEEK composites with heat resistant sizing agents
https://doi.org/10.22349/1994-6716-2022-112-4-62-76
Abstract
Continuous Fiber Reinforced Thermoplastic Composites (CFRTPCs) are known for their demand in high-tech industries due to their excellent mechanical, thermal and chemical performance. However, poor adhesion interaction between carbon fiber (CF) and high-performance polymers such as PEEK tend to influence the mechanical modulus of the composite parts in a negative way. In the current work, a number of PAA-based sizing agents modified with various fillers were used for CF surface treatment in order to improve adhesion. Thus, the wettability of the sizing agents was studied, as well as the free surface energy using the Owens-Wendt method. The calculated energy values were used to determine the work of adhesion between the sizing agents and PEEK. The adhesive connection between the CF treated with the sizing agents and PEEK was examined by the single fiber pull-out testing. Furthermore, the most promising samples were used for CF, on the basis of which towpreg composites samples were obtained to study its physico-mechanical properties. Results suggested that the values of the strength characteristics of the composites are comparable to the values measured for composites based on commercially available materials.
Keywords
carbon fiber,
surface treatment,
sizing agents,
PEEK,
Continuous Fiber Reinforced Thermoplastic Composites
Supporting agencies: This work was supported by the National Research Center “Kurchatov Instituteˮ (NRC “Kurchatov Instituteˮ). The work was carried out using the scientific equipment of the Central Collective Use Center of the NRC “Kurchatov Instituteˮ – IREA with the financial support of the project by the Ministry of Education and Science of Russian Federation, Agreement No 075-15-2022-1157 dated 16.08.2022.
About the Authors
D. S. Aleksandrova
National Research Center “Kurchatov Institute”; National Research Center “Kurchatov Institute” – IREA (Institute of Chemical Reagents and High Purity Chemical Substances)
Russian Federation
Russian Federation
123182 Moscow, Akademika Kurchatova Sq, 1
107076 Moscow, Bogorodsky Val, 3
M. V. Komarova
National Research Center “Kurchatov Institute”; National Research Center “Kurchatov Institute” – IREA (Institute of Chemical Reagents and High Purity Chemical Substances)
Russian Federation
Russian Federation
123182 Moscow, Akademika Kurchatova Sq, 1
107076 Moscow, Bogorodsky Val, 3
A. S. Egorov
National Research Center “Kurchatov Institute”; National Research Center “Kurchatov Institute” – IREA (Institute of Chemical Reagents and High Purity Chemical Substances)
Russian Federation
Russian Federation
Cand Sc. (Chem)
123182 Moscow, Akademika Kurchatova Sq, 1
107076 Moscow, Bogorodsky Val, 3
A. L. Andreichev
R&D Department, JSC UMATEX
Russian Federation
Russian Federation
109316 Moscow, Volgogradsky Ave, 42/Bldg 13
A. A. Shumakov
R&D Department, JSC UMATEX
Russian Federation
Russian Federation
109316 Moscow, Volgogradsky Ave, 42/Bldg 13
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Review
For citations:
Aleksandrova D.S., Komarova M.V., Egorov A.S., Andreichev A.L., Shumakov A.A. Strength analysis of carbon fiber reinforced PEEK composites with heat resistant sizing agents. Voprosy Materialovedeniya. 2022;(4(112)):62-76. (In Russ.) https://doi.org/10.22349/1994-6716-2022-112-4-62-76
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