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Kumar R, Tewari A, Parashar A. Thermal Transport Phenomena in PEGDA-Based Nanocomposite Hydrogels Using Atomistic and Experimental Techniques. J Phys Chem B 2024; 128:5254-5267. [PMID: 38770752 DOI: 10.1021/acs.jpcb.4c01376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Poly(ethylene glycol) diacrylate (PEGDA) hydrogel is a very peculiar, fascinating material with good chemical stability and biocompatibility. However, the poor thermal transport phenomenon in PEGDA, limits its performance in cartilage replacement and developing therapies for treating burns. In this article, a combined experimental and atomistic approach was adopted to investigate the thermal transport phenomena in PEGDA hydrogel with different weight concentrations of boron nitride nanoplatelets as a function of water content. The incorporation of boron nitride nanofillers helps in enhancing the thermal conductivity of PEGDA hydrogels, and the reinforcement effect was more dominating at lower water content. Experimental investigation was complemented with molecular dynamics-based studies to capture the effect of defective (bicrystalline) boron nitride nanosheets on the interfacial thermal conductance in PEGDA hydrogels. It can be concluded from the simulations that defective nanosheets are superior reinforcement for enhancing the thermal transport in PEGDA hydrogels, and this is independent of the water content. These biocompatible boron nitride nanoparticle (BNNP)-incorporated PEGDA hydrogels with enhanced thermal conductivity are promising materials in addressing locally overheating tissues such as cartilage replacement. They may have comprehensive utility for biomedical applications such as tissue engineering, drug delivery, biosensors, and burn therapy.
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Yang Y, Zhao J, Cui J, Jiang B. Molecular dynamics study on enhancement of mechanical and tribological properties of polytetrafluoroethylene composites by incorporating hexagonal boron nitride nanosheets. J Appl Polym Sci 2023. [DOI: 10.1002/app.53761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
- Yadi Yang
- School of Mechanical Engineering Shenyang University of Technology Shenyang China
| | - Jing Zhao
- School of Mechanical Engineering Shenyang University of Technology Shenyang China
- Technology Research Institute Liaoning Wuhuan Special Materials and Intelligent Equipment Industry Shenyang China
| | - Jianzheng Cui
- Department of Astronautic Science and Mechanics Harbin Institute of Technology Harbin China
| | - Bowen Jiang
- School of Mechanical Engineering Shenyang University of Technology Shenyang China
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Kumar R, Parashar A. Atomistic simulations of pristine and nanoparticle reinforced hydrogels: A review. WIRES COMPUTATIONAL MOLECULAR SCIENCE 2023. [DOI: 10.1002/wcms.1655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Raju Kumar
- Department of Mechanical and Industrial Engineering Indian Institute of Technology Roorkee Uttarakhand India
| | - Avinash Parashar
- Department of Mechanical and Industrial Engineering Indian Institute of Technology Roorkee Uttarakhand India
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Srivastava AK, Pathak VK, Kumar M, Kumar R, Prakash S. Mechanical properties of boron nitride nano-sheet reinforced aluminium nanocomposite: a molecular dynamics study. MOLECULAR SIMULATION 2022. [DOI: 10.1080/08927022.2022.2060966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - Vimal Kumar Pathak
- Mechanical Engineering Department, Manipal University Jaipur, Jaipur, India
| | - Manoj Kumar
- Department of Computing & Information Technology, Manipal University Jaipur, Jaipur, India
| | - Rajesh Kumar
- Chitkara College of Applied Engineering, Chitkara University, Punjab, India
| | - Surya Prakash
- School of Engineering and Technology, BML Munjal University, Gurugram, India
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Li C, Wei H, Zhan H, Bai J, Kou L, Gu Y. Tensile Performance of Polymer Nanocomposites with Randomly Dispersed Carbon Nanothreads. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01711] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chengkai Li
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology (QUT), Brisbane, Queensland 4001, Australia
| | - Hanqing Wei
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China
| | - Haifei Zhan
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology (QUT), Brisbane, Queensland 4001, Australia
- Department of Civil Engineering, Zhejiang University, Hangzhou 310058, China
- Center for Materials Science, Queensland University of Technology (QUT), Brisbane, Queensland 4001, Australia
| | - Jingshuai Bai
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology (QUT), Brisbane, Queensland 4001, Australia
| | - Liangzhi Kou
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology (QUT), Brisbane, Queensland 4001, Australia
- Center for Materials Science, Queensland University of Technology (QUT), Brisbane, Queensland 4001, Australia
| | - Yuantong Gu
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology (QUT), Brisbane, Queensland 4001, Australia
- Center for Materials Science, Queensland University of Technology (QUT), Brisbane, Queensland 4001, Australia
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Sun C, Zhao J, Zhang D, Guo H, Wang X, Hu H. Covalent functionalization of boron nitride nanosheets via reductive activation. NANOSCALE 2020; 12:18379-18389. [PMID: 32870231 DOI: 10.1039/d0nr02850a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hexagonal boron nitride is well known for its unique structure and excellent physical properties, particularly in hexagonal boron nitride nanosheets (BNNSs) with high potential in multiple technological applications. However, its severe layer-by-layer aggregation and incompatibility with processing liquids or condensed phase materials pose a great challenge. Covalent functionalization of BNNSs has been a common approach to address these critical issues, yet it is extremely difficult to carry out due to the chemical inertness of BNNSs. In this study, we report a novel and general route to covalently functionalize BNNSs via a simple reduction reaction. This involves initial negative charging through effective reductive activation which enables subsequent reactions with various organic alkyl halides. Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and thermogravimetric analysis (TGA) results confirm that linear alkyl chains with varying lengths are successfully grafted onto BNNSs, which leads to matched compatibility with organic media and the exfoliation level of few-layer thickness. The increase of the alkyl chain length considerably promotes their solubility in organic solvents with iodoalkanes as the most efficient grafting agents. Incorporation of alkylated BNNSs into a polymer matrix at low filler loadings leads to significant enhancements in mechanical properties over neat polymers, suggesting their exceptional reinforcement for polymer nanocomposites. This facile and scalable reductive chemistry route is applicable to versatile chemical modifications of BNNSs with diverse functional groups and grafting agents by reactions with suitable electrophiles.
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Affiliation(s)
- Changjiu Sun
- Key Laboratory of Rubber-Plastics Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, Qingdao University of Science & Technology, No. 53 Zhengzhou Road, Qingdao 266042, China
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Gao X, Bilal M, Ali N, Yun S, Wang J, Ni L, Cai P. Two-dimensional nanosheets functionalized water-borne polyurethane nanocomposites with improved mechanical and anti-corrosion properties. INORG NANO-MET CHEM 2020. [DOI: 10.1080/24701556.2020.1749656] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Xiaoyan Gao
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huai’an, China
| | - Muhammad Bilal
- School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai’an, China
| | - Nisar Ali
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huai’an, China
| | - Shan Yun
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huai’an, China
| | - Jinquan Wang
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huai’an, China
| | - Lingli Ni
- Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaiyin Institute of Technology, Huai’an, China
| | - Peng Cai
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huai’an, China
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Verma A, Kumar R, Parashar A. Enhanced thermal transport across a bi-crystalline graphene–polymer interface: an atomistic approach. Phys Chem Chem Phys 2019; 21:6229-6237. [DOI: 10.1039/c9cp00362b] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The objective of this investigation was to elaborate on the influence of grain boundaries on the interfacial thermal conductance between bi-crystalline graphene and polyethylene in a nanocomposite.
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Affiliation(s)
- Akarsh Verma
- Department of Mechanical and Industrial Engineering
- Indian Institute of Technology Roorkee
- India
| | - Rajesh Kumar
- Institute of Materials Science
- University of Connecticut
- USA
| | - Avinash Parashar
- Department of Mechanical and Industrial Engineering
- Indian Institute of Technology Roorkee
- India
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