Article
Materials Science, Multidisciplinary
M. V. Yakovlev, M. E. Kuchevskaia, V. E. Terekhov, O. S. Morozov, A. V. Babkin, A. V. Kepman, V. V. Avdeev, B. A. Bulgakov
Summary: Easy-processable phthalonitrile resins were prepared using novel viscosity reducing comonomer CPN. Different curing agents, aromatic diamine DDS and 4-(4-aminophenoxy) phthalonitrile APN, were used to study their effects on material properties. Carbon fabric composites with APN-cured matrix showed high compression strength and thermal aging sustainability, but post-curing at 375 degrees C resulted in decreased mechanical properties.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Polymer Science
Mingzhen Xu, Bo Li, Xiongyao Li, Zexu Fan, Dengxun Ren
Summary: This study systematically investigates the curing behaviors of self-polymerization epoxy/phthalonitrile (APPEN) pre-polymers. The key factors affecting the co-polymerization of APPEN are defined, and appropriate pre-polymerization conditions are analyzed. The thermomechanical and mechanical properties of glass-fiber-reinforced APPEN laminates are analyzed, revealing their outstanding performance. The findings contribute to the application of epoxy-matrix-based composites in high-performance polymer composites.
Article
Materials Science, Composites
Arun Sam Varghese, M. S. Sreekanth
Summary: This study analyzed the impact of multiwalled carbon nanotubes (MWCNTs) as nanofillers in epoxy/carbon fiber composites and investigated the optimal manufacturing strategies. The results showed that the addition of MWCNTs can improve the mechanical performance and thermal stability of the composites.
POLYMER COMPOSITES
(2023)
Article
Nanoscience & Nanotechnology
Guang-He Dong, Fang-Liang Guo, Zheng Sun, Yuan-Qing Li, Shu-Feng Song, Chao-He Xu, Pei Huang, Cheng Yan, Ning Hu, Shao-Yun Fu
Summary: In this study, a carbon fiber-based structural battery with load-bearing and energy storage functions was successfully fabricated. By employing a unique electrolyte and matrix material, the battery achieved high performance while being compatible with conventional manufacturing processes. The battery exhibited high tensile strength, energy density, and capacity recovery after loading.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Xulin Yang, Kui Li, Qiancheng Liu, Wenwu Lei, Hai Liu, Wei Feng, Pan Wang, Xiaobo Liu
Summary: High mechanical residues at elevated temperatures are essential for the engineering applications of PNP/hydroxyl compounds/CF composites in special fields like aerospace. The study assessed the high temperature mechanical performances of these composites, showing retention rates of mechanical properties over 90% after aging at 300 degrees C and 350 degrees C for 50 hours. This indicates that PNP/hydroxyl compounds/CF composites can be utilized as high performance engineering materials with excellent comprehensive mechanical properties.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Materials Science, Multidisciplinary
Yiwu Pan, Xiangyu Jin, Hebing Wang, He Huang, Can Wu, Xiaojie Yan, Changqing Hong, Xinghong Zhang
Summary: A unique nano-TiO2 coated carbon fiber felt/phenolic resin aerogel composite with excellent thermal properties and high-temperature resistance was reported. The composite showed outstanding antioxidant ablation and infrared radiation shielding properties. Experimental and theoretical analysis demonstrated its competitive potential in the field of future thermal protection materials.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Composites
Kimiyoshi Naito, Chiemi Nagai
Summary: The study investigated the mode-I and mode-II interlaminar fracture properties of high modulus pitch-based CFRPs modified with 20-30 nm beta-SiC nanoparticles or MWCNTs. The results showed that adding these nanostructures could enhance the fracture toughness of the CFRPs, but the performance decreased with increasing volume fraction of the inclusions. No differences in mechanical properties were observed among the different types of nanostructures.
JOURNAL OF COMPOSITE MATERIALS
(2022)
Review
Materials Science, Composites
Francesco David, Elisa Pizzi, Federica Trovalusci
Summary: The disposal of Fiber Reinforced Composites (FRCs) waste is a critical issue due to their increasing production. This study investigates the manufacturing process and performance of a carbon fiber-reinforced plastic (CFRP) laminate made with a recycled non-woven carbon fabric and epoxy resin. The results show that the laminates obtained using the Resin Infusion under Flexible Tooling (RIFT) method exhibit good mechanical properties and isotropy. This scalable process offers high sustainability and reduced cost, making the products suitable for various applications.
JOURNAL OF COMPOSITE MATERIALS
(2023)
Review
Engineering, Manufacturing
Joerg Hohe, Achim Neubrand, Sascha Fliegener, Carla Beckmann, Michael Schober, Klaus-Peter Weiss, Simon Appel
Summary: The demand for lightweight fuel vessels for future launch vehicles in aerospace technology and hydrogen technology in terrestrial applications has led to the need for validated procedures for assessing fiber reinforced plastic structures under cryogenic environments. This study focuses on the assessment of FRP materials under cryogenic temperatures, covering aspects such as strength, toughness, failure mechanisms, and characterization procedures for material data determination.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Review
Polymer Science
Pi-Yu Chen, Ran Feng, Ying Xu, Ji-Hua Zhu
Summary: This paper provides an overview of the current status of carbon fiber-reinforced plastics (CFRP) waste and presents a systematic review of recycling technologies. It discusses various methods such as mechanical recycling, thermal decomposition, chemical solvent degradation, and the organic alkali/organic solvent method for recycling resins. The study highlights the significance of the organic alkali/organic solvent method as a reference for carbon fiber recycling and reviews the utilization of recycled carbon fibers (rCFs) in different application domains. The paper identifies research limitations and areas that require further attention in recycling techniques and rCFs utilization, while also providing a future prospect on the recycling and reusing of CFRP waste.
Article
Chemistry, Multidisciplinary
Musa Adamu, Yasser E. Ibrahim, Omar Shabbir Ahmed, Qasem A. Drmosh
Summary: In this study, nano-activated carbon was used as an additive to produce date palm fiber-reinforced concrete. The findings showed that adding 1% nano-activated carbon significantly improved the compressive strength of the concrete and reduced the harmful effects of date palm fiber.
NANOTECHNOLOGY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Ayeong Yu, Younggi Hong, Eunhyun Song, Hakchun Kim, Inhee Choi, Munju Goh
Summary: This study presents a method for the chemical depolymerization of epoxy resin in carbon composites using hydroxyl radicals. The decomposition of epoxy resin was found to be complete within 2 hours at 100 degrees C using hydroxyl radicals generated from NaOCl. Different radical initiators, such as KPS and ACVA, were evaluated for their effect on the acceleration of hydroxyl radical generation. The results show that the combination of NaOCl and KPS significantly increased the reaction rate constant in CFRP recycling.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Materials Science, Ceramics
Wei-Cheng Hung, Richard S. Horng, Rung-En Shia
Summary: A novel method of improving the skeletal structure of aerogels by reinforcing them with three layers of glass fiber and carbon fiber has been proposed in this study, resulting in aerogel composites with improved heat insulation performance; By investigating different ratios of glass/carbon fibers in the composites, a balance between thermal insulation performance and strength was achieved, providing a practical alternative for preparing robust and sustainable heat insulation aerogel composites.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Composites
Quan-Xiu Liu, Yuan-Yuan Zhang, Zheng Sun, Yuan-Qing Li, Bo-Wen Guan, Tao Guan, Yu-Tong Fu, Xiao-Long Mo, Shao-Yun Fu
Summary: Proper preparation processes are critical for achieving high residual fiber lengths in short fiber reinforced thermoplastics, which greatly influences the mechanical properties. In this study, the injection molding process was combined with a newly developed solution mixing process to fabricate high-strength short carbon fiber reinforced polyetherimide composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Polymer Science
Gleb Vaganov, Elena Ivan'kova, Andrey Didenko, Elena Popova, Valentina Smirnova, Vladimir Elokhovskiy, Vladimir Yudin
Summary: In this study, the properties of carbon fiber reinforced plastics (CFRPs) based on semicrystalline polyimide R-BAPB were compared with highly heat-resistant thermoplastic polymers, Ultem-1000 and PEEK. The CFRPs based on PEEK and R-BAPB exhibited the highest thermal stability and heat resistance. Among all the studied CFRPs, the highest interlaminar fracture toughness was observed in CFRPs based on semicrystalline R-BAPB.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Applied
S. S. Nechausov, A. A. Aleksanova, O. S. Morozov, B. A. Bulgakov, A. Babkin, A. Kepman
Summary: Novel dual-functional phthalonitrile monomers containing a maleimide group were synthesized and characterized, showcasing a combination of bismaleimide resins' mechanical properties and phthalonitriles' thermo-oxidative stability. The copolymerization of maleimide groups via ene reaction and ring-opening amidation allowed the formation of a polymeric system with high impact strength, flexural strength, and excellent thermal properties.
REACTIVE & FUNCTIONAL POLYMERS
(2021)
Article
Chemistry, Multidisciplinary
Vladislav V. Aleshkevich, Boris A. Bulgakov, Yakov Lipatov, Aleksandr Babkin, Alexey Kepman
Summary: Carbon-carbon composites (C/C) were produced by transforming carbon fiber reinforced phthalonitrile (CFRP) matrix composites into C/C through a two-step process, resulting in highly crystalline structure and properties.
MENDELEEV COMMUNICATIONS
(2022)
Article
Polymer Science
Alexander Vedernikov, Kirill Minchenkov, Sergey Gusev, Artem Sulimov, Ping Zhou, Chenggao Li, Guijun Xian, Iskander Akhatov, Alexander Safonov
Summary: The choice of manufacturing process, raw materials, and process parameters has a significant impact on the quality of pre-consolidated tapes used in thermoplastic pultrusion. This study compared commercially available tapes to inhouse-made tapes, and found that the inhouse-made tapes produced pultruded composites with higher mechanical properties. Differences in the manufacturing methods of pre-consolidated tapes resulted in variations in glass fiber impregnation and mechanical properties.
Article
Biochemistry & Molecular Biology
Oleg S. Morozov, Alexander Babkin, Anna Ivanchenko, Svetlana S. Shachneva, Sergey S. Nechausov, Dmitry A. Alentiev, Maxim Bermeshev, Boris A. Bulgakov, Alexey Kepman
Summary: Two types of poly(5-phenyl-2-norbornene) were synthesized, resulting in highly sulfonated ion exchange membranes. Polymers soluble in common polar organic solvents were obtained by replacing the proton in the ion exchange membranes. The mechanical, morphological, and conductive properties of the membranes were examined. Dry and air-stable actuators with high strain and stress were fabricated using these membranes.
Article
Engineering, Manufacturing
Sergey Nechausov, Anna Ivanchenko, Oleg Morozov, Aslan Miriyev, Indrek Must, Oskars Platnieks, Maksims Jurinovs, Sergejs Gaidukovs, Alvo Aabloo, Mirko Kovac, Boris Bulgakov
Summary: This study investigates the effect of adding ionic liquids (ILs) on the vat photopolymerization (VP) process for the fabrication of ionogels (IGs). The results show that ILs can accelerate the polymerization reaction and increase the critical exposure energy for gelation. The study also demonstrates the changing penetration depth with different IL types and the impact of dual curing on the mechanical properties and ionic conductivity of the ionogels.
ADDITIVE MANUFACTURING
(2022)
Article
Multidisciplinary Sciences
Sergey Nechausov, Anna Ivanchenko, Oleg Morozov, Aslan Miriyev, Indrek Must, Oskars Platnieks, Maksims Jurinovs, Sergejs Gaidukovs, Alvo Aabloo, Mirko Kova, Boris Bulgakov
Summary: In this study, the effects of ionic liquid nature, content, and monomer/crosslinker ratio on the copolymerization of NVP with TEGDMA induced by UV or heat irradiation were investigated. The findings provide a complete dataset for the 3D printing of high-accuracy ionogels using ionic liquids.
Article
Chemistry, Physical
Hassaan A. Butt, Ilya V. Novikov, Dmitry V. Krasnikov, Artem V. Sulimov, Amit K. Pal, Stanislav A. Evlashin, Anton M. Vorobei, Yaroslav I. Zuev, Dmitry Ostrizhiniy, Dmitry Dzhurinskiy, Yuri A. Popov, Olga O. Parenago, Albert G. Nasibulin
Summary: In this work, pre-consolidated form of single-walled carbon nanotubes (SWCNT) - SWCNT briquettes - are proposed as a material for manufacturing electrically and thermally conductive thermoset nanocomposites. The briquettes provide similar performance to other forms of SWCNTs in the nanocomposites, with low percolation thresholds. Compared to other forms of SWCNTs, the pre-consolidated briquettes have lower cost and better dispersibility, making them suitable for large scale production and small scale laboratories.
Article
Materials Science, Multidisciplinary
M. V. Yakovlev, M. E. Kuchevskaia, V. E. Terekhov, O. S. Morozov, A. V. Babkin, A. V. Kepman, V. V. Avdeev, B. A. Bulgakov
Summary: Easy-processable phthalonitrile resins were prepared using novel viscosity reducing comonomer CPN. Different curing agents, aromatic diamine DDS and 4-(4-aminophenoxy) phthalonitrile APN, were used to study their effects on material properties. Carbon fabric composites with APN-cured matrix showed high compression strength and thermal aging sustainability, but post-curing at 375 degrees C resulted in decreased mechanical properties.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Composites
Kirill Minchenkov, Alexander Vedernikov, Yulia Kuzminova, Sergey Gusev, Artem Sulimov, Artem Gulyaev, Anastasia Kreslavskaya, Ilya Prosyanoy, Guijun Xian, Iskander Akhatov, Alexander Safonov
Summary: Pre-consolidated tapes in thermoplastic pultrusion solve the problem of impregnating reinforcements with high-viscosity thermoplastic resins. However, laminates made from pre-consolidated sheets exhibit higher compressive, tensile, and flexural strengths than those made from pre-consolidated tapes. This difference in strength is due to the presence of unimpregnated regions and matrix cracks in the tapes, which are absent in the sheets. Pre-consolidated sheets enable the production of thermoplastic pultruded composites with larger cross-sections and better mechanical performance compared to composites made from pre-consolidated tapes described in the literature.
COMPOSITES COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Sergey Nechausov, Anastasya Aleksanova, Oleg Morozov, Alexandr Babkin, Alexey Kepman, Victor Avdeev, Boris Bulgakov
Summary: In this study, phthalonitrile-containing polymers were prepared using a maleimide/phthalonitrile bifunctional monomer via vat photopolymerization. The glass transition temperatures of the 3D printed materials were increased up to 351 degrees C after additional thermal postcuring.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Polymer Science
Daria Poliakova, Oleg Morozov, Yakov Lipatov, Alexander Babkin, Alexey Kepman, Viktor Avdeev, Boris Bulgakov
Summary: This study successfully reduced the processing time of phthalonitrile resin by synthesizing a novel novolac oligomer with fully substituted phthalonitrile moieties and optimizing the curing program based on various factors. The resulting resin exhibited stability at high temperatures and high-performance composite laminates were fabricated using hot-pressing of prepregs.
Article
Thermodynamics
M. S. Lobanova, V. V. Aleshkevich, M. Yu. Yablokova, O. S. Morozov, A. V. Babkin, A. V. Kepman, V. V. Avdeev, B. A. Bulgakov
Summary: The thermal oxidation decomposition process of phthalonitrile resins, post-cured at different temperatures, was investigated. The degradation process was found to be a complex four-stage process. The analysis showed that the first stage is an nth order reaction with autocatalysis. The phthalonitrile resin post-cured at 603 K exhibited better thermal stability compared to resins post-cured at higher temperatures.
THERMOCHIMICA ACTA
(2023)
Review
Polymer Science
B. A. Bulgakov, O. S. Morozov, I. A. Timoshkin, A. V. Babkin, A. V. Kepman
Summary: This review focuses on the processes of producing heat-resistant matrices for fiber reinforced plastics using phthalonitrile monomers and comonomers, and discusses polymerization behaviors with various initiators and temperature modes. It also compares the properties of glass fiber reinforced plastics (GFRP) and carbon fiber reinforced plastics (CFRP) obtained through curing of different phthalonitriles.
POLYMER SCIENCE SERIES C
(2021)
Review
Polymer Science
I. A. Timoshkin, V. V. Aleshkevich, E. S. Afanas'eva, B. A. Bulgakov, A. V. Babkin, A. V. Kepman, V. V. Avdeev
POLYMER SCIENCE SERIES C
(2020)
Article
Chemistry, Multidisciplinary
O. S. Morozov, S. S. Shachneva, B. A. Bulgakov, A. Babkin, A. Kepman
EURASIAN CHEMICO-TECHNOLOGICAL JOURNAL
(2020)
