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Demchuk Z, Zhu J, Li B, Zhao X, Islam NM, Bocharova V, Yang G, Zhou H, Jiang Y, Choi W, Advincula R, Cao PF. Unravelling the Influence of Surface Modification on the Ultimate Performance of Carbon Fiber/Epoxy Composites. ACS APPLIED MATERIALS & INTERFACES 2022; 14:45775-45787. [PMID: 36170969 PMCID: PMC9562280 DOI: 10.1021/acsami.2c11281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 09/02/2022] [Indexed: 06/16/2023]
Abstract
The overall performance of polymer composites depends on not only the intrinsic properties of the polymer matrix and inorganic filler but also the quality of interfacial adhesion. Although many reported approaches have been focused on the chemical treatment for improving interfacial adhesion, the examination of ultimate mechanical performance and long-term properties of polymer composites has been rarely investigated. Herein, we report carbon fiber (CF)/epoxy composites with improved interfacial adhesion by covalent bonding between CFs and the epoxy matrix. This leads to the improved ultimate mechanical properties and enhanced thermal aging performance. Raman mapping demonstrates the formation of an interphase region derived from the covalent bonding between CFs and the epoxy matrix, which enables the uniform fiber distribution and eliminates phase separation during thermal cycling. The covalent attachment of the CF to the epoxy matrix suppresses its migration during temperature fluctuations, preserving the mechanical performance of resulting composites under the thermal aging process. Furthermore, the finite elemental analysis reveals the effectiveness of the chemical treatment of CFs in improving the interfacial strength and toughness of silane-treated CF/epoxy composites. The insight into the mechanical improvement of CF/epoxy composites suggests the high potential of surface modification of inorganic fillers toward polymer composites with tunable properties for different applications.
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Affiliation(s)
- Zoriana Demchuk
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Jiadeng Zhu
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Bingrui Li
- The
Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Xiao Zhao
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Nurul Md. Islam
- Department
of Mechanical Engineering, University of
North Texas, Denton, Texas 76203, United States
| | - Vera Bocharova
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Guang Yang
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Hongyu Zhou
- Department
of Civil and Environmental Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Yijie Jiang
- Department
of Mechanical Engineering, University of
North Texas, Denton, Texas 76203, United States
| | - Wonbong Choi
- Department
of Mechanical Engineering, University of
North Texas, Denton, Texas 76203, United States
| | - Rigoberto Advincula
- Center
for Nanophase Materials and Sciences, Oak
Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
- Department
of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Peng-Fei Cao
- State
Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
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Sui H, Li L, Zhu X, Chen D, Wu G. Modeling the adsorption of PAH mixture in silica nanopores by molecular dynamic simulation combined with machine learning. CHEMOSPHERE 2016; 144:1950-9. [PMID: 26547031 DOI: 10.1016/j.chemosphere.2015.10.053] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 09/10/2015] [Accepted: 10/13/2015] [Indexed: 05/13/2023]
Abstract
The persistence of polycyclic aromatic hydrocarbons (PAHs) in contaminated soils is largely controlled by their molecular fate in soil pores. The adsorption and diffusion of 16 PAHs mixture in silica nanopore with diameter of 2.0, 2.5, 3.0 and 3.5 nm, respectively, were characterized by adsorption energy, mean square displacement, free surface area and free volume fraction using molecular dynamic (MD) simulation. Results suggested that PAHs adsorption in silica nanopores was associated with diffusion process while competitive sorption was not the dominant mechanism in context of this study. The partial least squares (PLS) regression and machine learning (ML) methods (i.e. support vector regression, M5 decision tree and multilayer perceptrons) were used to correlate the adsorption energy with the pore diameter and PAH properties (number of carbon atoms, aromatic ring number, boiling point, molecular weight, octanol-water partition coefficient, octanol-organic carbon partition coefficient, solvent accessible area, solvent accessible volume and polarization). Results indicated that the PAH adsorption could not be predicted by linear regression as the R(2)Y and Q(2)Y coefficients of PLS analysis was 0.375 and 0.199, respectively. The nonlinearity was well recognized by ML with correlation coefficient up to 0.9. Overall, the combination of MD simulation and ML approaches can assist in interpreting the sequestration of organic contaminants in the soil nanopores.
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Affiliation(s)
- Hong Sui
- Shenzhen Key Laboratory for Coastal Ocean Dynamic and Environment, Division of Ocean Science and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China; School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Lin Li
- Shenzhen Key Laboratory for Coastal Ocean Dynamic and Environment, Division of Ocean Science and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China; School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Xinzhe Zhu
- Shenzhen Key Laboratory for Coastal Ocean Dynamic and Environment, Division of Ocean Science and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Daoyi Chen
- Shenzhen Key Laboratory for Coastal Ocean Dynamic and Environment, Division of Ocean Science and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Guozhong Wu
- Shenzhen Key Laboratory for Coastal Ocean Dynamic and Environment, Division of Ocean Science and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
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Davris T, Lyulin AV. A coarse-grained molecular dynamics study of segmental structure and mobility in capped crosslinked copolymer films. J Chem Phys 2015; 143:074906. [DOI: 10.1063/1.4928961] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- T. Davris
- Theory of Polymers and Soft Matter, Technische Universiteit Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - A. V. Lyulin
- Theory of Polymers and Soft Matter, Technische Universiteit Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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Moosburger-Will J, Greisel M, Horn S. Physical aging of partially crosslinked RTM6 epoxy resin. J Appl Polym Sci 2014. [DOI: 10.1002/app.41121] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Judith Moosburger-Will
- Experimental Physics II, Institute of Physics, University of Augsburg; 86135 Augsburg Germany
| | - Michael Greisel
- Experimental Physics II, Institute of Physics, University of Augsburg; 86135 Augsburg Germany
| | - Siegfried Horn
- Experimental Physics II, Institute of Physics, University of Augsburg; 86135 Augsburg Germany
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Lé-Magda M, Dargent E, Puente JAS, Guillet A, Font E, Saiter JM. Influence of very long aging on the relaxation behavior of flame-retardant printed circuit board epoxy composites under mechatronic conditions. J Appl Polym Sci 2013. [DOI: 10.1002/app.39216] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mélanie Lé-Magda
- Advanced Materials and Mechanical Engineering-Laboratoire d'Etude et de Caractérisation des Amorphes et de Polymères (AMME-LECAP EA4528) International Laboratory; Université et Institut National des Sciences Appliquées (INSA) de Rouen; avenue de l'Université 76801 Saint Etienne du Rouvray Cedex France
- Groupe de Physique des Matériaux Unité mixte de recherche (UMR) CNRS Université et Institut National des Sciences Appliquées (INSA) de Rouen; avenue de l'Université 76801 Saint Etienne du Rouvray Cedex France
- Laboratoire National d'Essai (LNE); 29 avenue Roger Hennequin 78297 Trappes France
| | - Eric Dargent
- Advanced Materials and Mechanical Engineering-Laboratoire d'Etude et de Caractérisation des Amorphes et de Polymères (AMME-LECAP EA4528) International Laboratory; Université et Institut National des Sciences Appliquées (INSA) de Rouen; avenue de l'Université 76801 Saint Etienne du Rouvray Cedex France
| | - Jorge Arturo Soto Puente
- Advanced Materials and Mechanical Engineering-Laboratoire d'Etude et de Caractérisation des Amorphes et de Polymères (AMME-LECAP EA4528) International Laboratory; Université et Institut National des Sciences Appliquées (INSA) de Rouen; avenue de l'Université 76801 Saint Etienne du Rouvray Cedex France
| | - Alain Guillet
- Groupe de Physique des Matériaux Unité mixte de recherche (UMR) CNRS Université et Institut National des Sciences Appliquées (INSA) de Rouen; avenue de l'Université 76801 Saint Etienne du Rouvray Cedex France
| | - Emmanuelle Font
- Laboratoire National d'Essai (LNE); 29 avenue Roger Hennequin 78297 Trappes France
| | - Jean-Marc Saiter
- Advanced Materials and Mechanical Engineering-Laboratoire d'Etude et de Caractérisation des Amorphes et de Polymères (AMME-LECAP EA4528) International Laboratory; Université et Institut National des Sciences Appliquées (INSA) de Rouen; avenue de l'Université 76801 Saint Etienne du Rouvray Cedex France
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