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Ding Q, Ding N, Chen X, Guo W, Zaïri F. Understanding the Effect of Grain Boundaries on the Mechanical Properties of Epoxy/Graphene Composites. Polymers (Basel) 2023; 15:3218. [PMID: 37571111 PMCID: PMC10421364 DOI: 10.3390/polym15153218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
This work presents a molecular dynamics (MD) simulation study on the effect of grain boundaries (GBs) on the mechanical properties of epoxy/graphene composites. Ten types of GB models were constructed and comparisons were made for epoxy/graphene composites containing graphene with GBs. The results showed that the tensile and compressive behaviors, the glass transition temperature (Tg), and the configurations of epoxy/graphene composites were significantly affected by GBs. The tensile yield strength of epoxy/graphene composites could be either enhanced or weakened by GBs under a tensile load parallel to the graphene sheet. The underlying mechanisms may be attributed to multi-factor coupling, including the tensile strength of the reinforcements, the interfacial interaction energy, and the inflection degree of reinforcements. A balance exists among these effect factors, resulting in the diversity in the tensile yield strength of epoxy/graphene composites. The compressive yield strength for epoxy/graphene composites is higher than their counterpart in tension. The tensile/compressive yield strength for the same configuration presents diversity in different directions. Both an excellent interfacial interaction and the appropriate inflection degree of wrinkles for GB configurations restrict the translational and rotational movements of epoxy chains during volume expansion, which eventually improves the overall Tg. Understanding the reinforcing mechanism for graphene with GBs from the atomistic level provides new physical insights to material design for epoxy-based composites containing defective reinforcements.
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Affiliation(s)
- Qiuyue Ding
- Engineering Research Center of Failure Analysis and Safety Assessment, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Ning Ding
- Engineering Research Center of Failure Analysis and Safety Assessment, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Xiangfeng Chen
- Engineering Research Center of Failure Analysis and Safety Assessment, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Wenyue Guo
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Fahmi Zaïri
- Civil Engineering and Geo-Environmental Laboratory (ULR 4515 LGCgE), Lille University, 59000 Lille, France
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QSAR, Molecular Docking, Dynamic Simulation and Kinetic Study of Monoamine Oxidase B Inhibitors as Anti-Alzheimer Agent. CHEMISTRY AFRICA 2022. [DOI: 10.1007/s42250-022-00561-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Bakbak O, Colak O. Simplified cooperative viscoplasticity theory based on overstress model for nanocomposites. J Appl Polym Sci 2022. [DOI: 10.1002/app.52613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Okan Bakbak
- Department of Mechanical Engineering Yildiz Technical University Istanbul Turkey
| | - Ozgen Colak
- Department of Mechanical Engineering Yildiz Technical University Istanbul Turkey
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Song L, Zhang Y, Zhan J, An Y, Yang W, Tan J, Cheng L. Interfacial thermal resistance in polymer composites: a molecular dynamic perspective. MOLECULAR SIMULATION 2022. [DOI: 10.1080/08927022.2022.2071874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Lijian Song
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing, People’s Republic of China
| | - Youchen Zhang
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing, People’s Republic of China
| | - Jin Zhan
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing, People’s Republic of China
| | - Ying An
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing, People’s Republic of China
| | - Weimin Yang
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing, People’s Republic of China
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, People’s Republic of China
| | - Jing Tan
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing, People’s Republic of China
| | - Lisheng Cheng
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing, People’s Republic of China
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, People’s Republic of China
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Talapatra A, Datta D. A review of the mechanical, thermal and tribological properties of graphene reinforced polymer nanocomposites: a molecular dynamics simulations methods. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04216-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Sahrapeyma H, Asefnejad A, Azami M, Sadroddiny E. Fabrication of fibrous poly (ɛ‐caprolactone) nano‐fibers containing cerium doped‐bioglasses nanoparticles encapsulated collagen. J Appl Polym Sci 2021. [DOI: 10.1002/app.51202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hamed Sahrapeyma
- Department of Biomedical Engineering, Science and Research Branch Islamic Azad University Tehran Iran
| | - Azadeh Asefnejad
- Department of Biomedical Engineering, Science and Research Branch Islamic Azad University Tehran Iran
| | - Mahmoud Azami
- Department of Tissue Engineering School of Advanced Technologies in Medicine, Tehran University of Medical Sciences Tehran Iran
| | - Esmaeil Sadroddiny
- Medical Biotechnology Department School of Advanced Technologies in Medicine, Tehran University of Medical Sciences Tehran Iran
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Yan S, Verestek W, Zeizinger H, Schmauder S. Characterization of Cure Behavior in Epoxy Using Molecular Dynamics Simulation Compared with Dielectric Analysis and DSC. Polymers (Basel) 2021; 13:polym13183085. [PMID: 34577986 PMCID: PMC8469284 DOI: 10.3390/polym13183085] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 09/03/2021] [Accepted: 09/10/2021] [Indexed: 01/25/2023] Open
Abstract
The curing behavior of a thermosetting material that influences the properties of the material is a key issue for predicting the changes in material properties during processing. An empirical equation can describe the reaction kinetics of the curing behavior of an investigated material, which is usually estimated using experimental methods. In this study, the curing process of an epoxy resin, the polymer matrix in an epoxy molding compound, is computed concerning thermal influence using molecular dynamics. Furthermore, the accelerated reaction kinetics, which are influenced by an increased reaction cutoff distance, are investigated. As a result, the simulated crosslink density with various cutoff distances increases to plateau at a crosslink density of approx. 90% for the investigated temperatures during curing time. The reaction kinetics are derived according to the numerical results and compared with the results using experimental methods (dielectric analysis and differential scanning calorimetry), whereby the comparison shows a good agreement between experiment and simulation.
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Qin W, Kolooshani A, Kolahdooz A, Saber-Samandari S, Khazaei S, Khandan A, Ren F, Toghraie D. Coating the magnesium implants with reinforced nanocomposite nanoparticles for use in orthopedic applications. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126581] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Heydari M, Sharif F, Ebrahimi M. Bioinspired pressure-sensitive adhesive: evaluation of the effect of dopamine methacrylamide comonomer as a general property modifier using molecular dynamics simulation. RSC Adv 2021; 11:20557-20569. [PMID: 35479894 PMCID: PMC9033950 DOI: 10.1039/d1ra03634c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 05/25/2021] [Indexed: 01/02/2023] Open
Abstract
The use of catechol-containing comonomers as a general property enhancer to achieve unique properties has received particular attention for designing bioinspired polymeric materials. In this study, molecular dynamics simulation was used to investigate the role of dopamine methacrylamide (DMA) and N-phenethyl methacrylamide (PMA) comonomers in chain conformation and their effects on the mechanical properties and adhesion of poly(n-butyl acrylate-co-acrylic acid) copolymer. Addition of 4% by weight of DMA comonomer in the terpolymer structure reduces the gyration radius of the poly(n-butyl acrylate-co-acrylic acid) copolymer. This reduction is due to the formation of intramolecular hydrogen bond interactions. A further increase in the DMA up to 12.2% by weight increases the radius of gyration by 5%. The effect of PMA on the gyration radius of the poly(n-butyl acrylate-co-acrylic acid) copolymer is more extensive, compared to DMA. While DMA enhances both van der Waals and electrostatic components of the cohesive energy density through increasing π–π interactions and hydrogen bond formations, PMA only improves the van der Waals component. Assessment of mechanical properties revealed that the addition of DMA comonomer resulted in a transition from brittle to tough behavior in poly(n-butyl acrylate-co-acrylic acid) pressure-sensitive adhesive. Ductility index improvement by DMA is higher than that by PMA. DMA comonomers accumulate on the silica surface resulting in the terpolymer chains approaching the dry silica surface from the hydroxyl groups of the catechol. Accumulation of DMA only enhances the cohesive energy and does not improve the adhesive energy. The use of catechol-containing comonomers as a general property enhancer to achieve unique properties has received particular attention for designing bioinspired polymeric materials.![]()
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Affiliation(s)
- Mahmoud Heydari
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology Tehran 15875-4413 Iran
| | - Farhad Sharif
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology Tehran 15875-4413 Iran
| | - Morteza Ebrahimi
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology Tehran 15875-4413 Iran
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Soleimani M, Asgharzadeh Salmasi A, Asghari S, Joneidi Yekta H, Kamyab Moghadas B, Shahriari S, Saber-Samandari S, Khandan A. Optimization and fabrication of alginate scaffold for alveolar bone regeneration with sufficient drug release. INTERNATIONAL NANO LETTERS 2021. [DOI: 10.1007/s40089-021-00342-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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11
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Sun C, Yarmohammadi A, Isfahani RB, Nejad MG, Toghraie D, Fard EK, Saber-Samandari S, Khandan A. Self-healing polymers using electrosprayed microcapsules containing oil: Molecular dynamics simulation and experimental studies. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115182] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Li B, Chen J, Lv Y, Huang L, Zhang X. Influence of Humidity on Fatigue Performance of CFRP: A Molecular Simulation. Polymers (Basel) 2020; 13:polym13010140. [PMID: 33396389 PMCID: PMC7794863 DOI: 10.3390/polym13010140] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/19/2020] [Accepted: 12/28/2020] [Indexed: 11/22/2022] Open
Abstract
The study on durability of carbon fiber reinforced plastics (CFRP) in complex environments is critical because of its wide applications. Herein, mechanical behavior of carbon fiber reinforced epoxy composites in the fatigue process were investigated under different humidity via molecular dynamics (MD) simulation method. Transversely isotropic atom based models were established to simulate the structure of CFRP at the atomistic level. Owing to the weak performance in vertical fiber direction, mechanical behavior in a 90° orientation was investigated. Mean stress and energy were both employed to describe the evolution of mechanical performance while mean squared displacement (MSD), radius of gyration (Rg), and free volume were performed to describe the evolution of structural change during the fatigue process. The results show that the humidity led to a weakened interfacial adhesive performance. Free volume became larger under cyclic load, which caused the water molecules to diffuse into the inside of epoxy resin. The distance between the matrix and fiber became larger in the dry system while it reduced because of the diffusion of water molecules in wet system. The rate of performance degradation decreased with the increase in humidity because of poor initial performance at high humidity.
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Bowen L, Yong L, Jianzhong C, Li H, Xiaoyu Z. Fatigue performance of carbon fiber reinforced epoxy resin: A molecular simulation. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Li Bowen
- Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics, School of Science Wuhan University of Technology Wuhan China
| | - Lv Yong
- Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics, School of Science Wuhan University of Technology Wuhan China
| | - Chen Jianzhong
- Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics, School of Science Wuhan University of Technology Wuhan China
| | - Huang Li
- Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics, School of Science Wuhan University of Technology Wuhan China
| | - Zhang Xiaoyu
- Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics, School of Science Wuhan University of Technology Wuhan China
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Roustazadeh D, Aghadavoudi F, Khandan A. A synergic effect of CNT/Al2O3 reinforcements on multiscale epoxy-based glass fiber composite: fabrication and molecular dynamics modeling. MOLECULAR SIMULATION 2020. [DOI: 10.1080/08927022.2020.1815729] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Davood Roustazadeh
- Department of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr/Isfahan, Iran
| | - Farshid Aghadavoudi
- Department of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr/Isfahan, Iran
| | - Amirsalar Khandan
- Department of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr/Isfahan, Iran
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Shahali M, Khandan A, Raisi A, Asefnejad A, Sadat Kazerouni Z, Kolooshani A, Saber-Samandari S, Moghadas B. Preparation, characterization, and antibacterial studies of N, O-carboxymethyl chitosan as a wound dressing for bedsore application. ARCHIVES OF TRAUMA RESEARCH 2020. [DOI: 10.4103/atr.atr_10_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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