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Bian F, Huang R, Li X, Hu J, Lin S. Facile Construction of Chestnut-Like Structural Fireproof PDMS/Mxene@BN for Advanced Thermal Management and Electromagnetic Shielding Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307482. [PMID: 38342619 PMCID: PMC11022730 DOI: 10.1002/advs.202307482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/23/2023] [Indexed: 02/13/2024]
Abstract
Composite polymer materials featured superior thermal conductivity, flame retardancy, and electromagnetic shielding performance are increasingly in demand due to the rapid development of highly miniaturized, portable, and flexible electronic devices. Herein, a facile and green ball milling shear method is utilized for generating MXene@Boron nitride (MXene@BN). The multi-functional fillers (MXene@BN) are constructed and incorporated into polydimethylsiloxane (PDMS) to prepare a multifunctional composite (PDMS/MXene@BN) for achieving improved electromagnetic interference (EMI) shielding performance and thermal conductivity as well as flame retardancy simultaneously. When the PDMS/MXene@BN composite has a MXene@BN loading of 2.4 wt.%, it exhibits a high thermal conductivity of 0.59 W m-1K-1, which is 210% higher than that of the pure PDMS matrix. This is attributed to its unique chestnut-like double-layer structure. With a smoke production rate (SPR) of 0.04 m2 s-1 and total smoke production (TSP) of 3.51 m2, PDMS/MXene@BN 2.4 composite exhibits superb smoke suppression properties. These SPR and TSP values are 63.20% and 63.50% lower than the corresponding values of pure PDMS. Moreover, the EMI SE of the PDMS/MXene@BN 2.4 can reach 26.3 dB at 8.5 GHz. The work reported herein provides valuable insight into developing composites with multiple functions, which show strong potential for application in advanced packaging materials.
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Affiliation(s)
- Fuping Bian
- Guangzhou Institute of ChemistryChinese Academy of SciencesGuangzhou510650P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Rui Huang
- Guangzhou Institute of ChemistryChinese Academy of SciencesGuangzhou510650P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Xiaobin Li
- Guangzhou Institute of ChemistryChinese Academy of SciencesGuangzhou510650P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Jiwen Hu
- Guangzhou Institute of ChemistryChinese Academy of SciencesGuangzhou510650P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
- CAS Engineering Laboratory for Special Fine ChemicalsGuangzhou510650P. R. China
- CASH GCC Shaoguan Research Institute of Advanced MaterialsNanxiong512400P. R. China
- CASH GCC Fine Chemicals Incubator (Nanxiong) Co., LtdNanxiong512400P. R. China
| | - Shudong Lin
- Guangzhou Institute of ChemistryChinese Academy of SciencesGuangzhou510650P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
- CAS Engineering Laboratory for Special Fine ChemicalsGuangzhou510650P. R. China
- CASH GCC Shaoguan Research Institute of Advanced MaterialsNanxiong512400P. R. China
- CASH GCC Fine Chemicals Incubator (Nanxiong) Co., LtdNanxiong512400P. R. China
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Wang Q, Pan L, Bo R, Wang Y, Han Z. Modulating Thermal Conductivity and Flame Retardancy of Polyolefin Composites via Distributed Structures of Magnesium Hydroxide and Hexagonal Boron Nitride. Polymers (Basel) 2024; 16:646. [PMID: 38475329 DOI: 10.3390/polym16050646] [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: 01/31/2024] [Revised: 02/21/2024] [Accepted: 02/24/2024] [Indexed: 03/14/2024] Open
Abstract
Thermally conductive and flame-retardant polyolefin composites are facing great challenges in meeting the increasing demands for fire safety and thermal management. Aiming at simultaneously enhancing thermal conductivity and flame retardancy, hexagonal boron nitride (hBN) and magnesium hydroxide (MH) were adopted in ethylene-vinyl acetate copolymer/polyolefin elastomer (EVA/POE) blends to design composites with selective filler distributions and co-continuous networks via different processing schemes. The thermal conductivity and flame retardancy show strong dependence on the distributed structure of hBN and MH. The composites with hBN-rich centers and MH-rich edges in the filled POE phase show a thermal conductivity of 0.70 W/(m·K) and an LOI of 27.7%, which are very close to the thermal conductivity of EVA/POE/hBN and the LOI of EVA/POE/MH at the same total filler content. The composites with MH-rich centers and hBN-rich edges show pHRR, THR and TSP values of 169 kW/m2, 49.8 MJ/m2 and 1.8 m2, which are decreased by 40%, 33% and 62% in comparison with EVA/POE/MH, respectively. Modulating the filler structure distribution provides a strategy to co-enhance thermal conductivity and flame retardancy.
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Affiliation(s)
- Qi Wang
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150080, China
| | - Lin Pan
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150080, China
| | - Ruitian Bo
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150080, China
| | - Yunfei Wang
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150080, China
| | - Zhidong Han
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150080, China
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, China
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Yang Y, Wang Z, He Q, Li X, Lu G, Jiang L, Zeng Y, Bethers B, Jin J, Lin S, Xiao S, Zhu Y, Wu X, Xu W, Wang Q, Chen Y. 3D Printing of Nacre-Inspired Structures with Exceptional Mechanical and Flame-Retardant Properties. RESEARCH (WASHINGTON, D.C.) 2022; 2022:9840574. [PMID: 35169712 PMCID: PMC8817185 DOI: 10.34133/2022/9840574] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 12/13/2021] [Indexed: 11/25/2022]
Abstract
Flame-retardant and thermal management structures have attracted great attention due to the requirement of high-temperature exposure in industrial, aerospace, and thermal power fields, but the development of protective fire-retardant structures with complex shapes to fit arbitrary surfaces is still challenging. Herein, we reported a rotation-blade casting-assisted 3D printing process to fabricate nacre-inspired structures with exceptional mechanical and flame-retardant properties, and the related fundamental mechanisms are studied. 3-(Trimethoxysilyl)propyl methacrylate (TMSPMA) modified boron nitride nanoplatelets (BNs) were aligned by rotation-blade casting during the 3D printing process to build the "brick and mortar" architecture. The 3D printed structures are more lightweight, while having higher fracture toughness than the natural nacre, which is attributed to the crack deflection, aligned BN (a-BNs) bridging, and pull-outs reinforced structures by the covalent bonding between TMSPMA grafted a-BNs and polymer matrix. Thermal conductivity is enhanced by 25.5 times compared with pure polymer and 5.8 times of anisotropy due to the interconnection of a-BNs. 3D printed heat-exchange structures with vertically aligned BNs in complex shapes were demonstrated for efficient thermal control of high-power light-emitting diodes. 3D printed helmet and armor with a-BNs show exceptional mechanical and fire-retardant properties, demonstrating integrated mechanical and thermal protection.
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Affiliation(s)
- Yang Yang
- Department of Mechanical Engineering, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA
| | - Ziyu Wang
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China
| | - Qingqing He
- Department of Mechanical Engineering, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA
| | - Xiangjia Li
- School for Engineering of Matter, Transport and Energy, Arizona State University, 551 E Tyler Mall, Tempe, AZ 85281, USA
| | - Gengxi Lu
- Department of Biomedical Engineering, University of Southern California, 1042 Downey Way, Los Angeles, CA 90089, USA
| | - Laiming Jiang
- Department of Biomedical Engineering, University of Southern California, 1042 Downey Way, Los Angeles, CA 90089, USA
- Epstein Department of Industrial and Systems Engineering, University of Southern California, 3715 McClintock Ave, Los Angeles, CA 90089, USA
| | - Yushun Zeng
- Department of Biomedical Engineering, University of Southern California, 1042 Downey Way, Los Angeles, CA 90089, USA
| | - Brandon Bethers
- Department of Mechanical Engineering, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA
| | - Jie Jin
- Epstein Department of Industrial and Systems Engineering, University of Southern California, 3715 McClintock Ave, Los Angeles, CA 90089, USA
- ShadeCraft Robotics Inc., Pasadena, CA 91105, USA
| | - Shuang Lin
- Department of Chemical Engineering and Materials Science, University of Southern California, 925 Bloom Walk, Los Angeles, California 90089, USA
| | - Siqi Xiao
- Department of Chemical Engineering and Materials Science, University of Southern California, 925 Bloom Walk, Los Angeles, California 90089, USA
| | - Yizhen Zhu
- School for Engineering of Matter, Transport and Energy, Arizona State University, 551 E Tyler Mall, Tempe, AZ 85281, USA
- Department of Aerospace and Mechanical Engineering, University of Southern California, Los Angeles, CA 90089, USA
| | - Xianke Wu
- School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Wenwu Xu
- Department of Mechanical Engineering, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA
| | - Qiming Wang
- Sonny Astani Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, CA 90089, USA
| | - Yong Chen
- Epstein Department of Industrial and Systems Engineering, University of Southern California, 3715 McClintock Ave, Los Angeles, CA 90089, USA
- Department of Aerospace and Mechanical Engineering, University of Southern California, Los Angeles, CA 90089, USA
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Qian Y, Zheng J, Li L, Qiao P, Li Y, Duan Y, Chang G. Application of the synergistic flame retardant europium hydrotalcite/graphene oxide hybrid material and zinc borate to thermoplastic polyurethane. RSC Adv 2021; 11:21073-21083. [PMID: 35479334 PMCID: PMC9034133 DOI: 10.1039/d1ra01689j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 05/10/2021] [Indexed: 11/21/2022] Open
Abstract
In this paper, a certain amount of rare earth (europium) was doped into magnesium aluminum salt solution and assembled with graphene oxide (GO) by electrostatic interaction under alkaline conditions. Then, the EuMgAl-LDH/GO hybrid material was synthesized by a hydrothermal method. Its microstructure was analyzed and tested by X-ray diffraction (XRD), energy dispersive spectrometry (EDS), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FTIR), the results indicated that the EuMgAl-LDH/GO hybrid material had been successfully prepared. Next, it was mixed with zinc borate and added to a thermoplastic polyurethane (TPU) (thermoplastic polyurethane) matrix by melting blending. The flame retardant and smoke suppression effect of the composite was tested by conical calorimetry. The results showed that, compared with simple TPU, the PHRR (peak heat release rate), THR (total heat release), PSPR (peak smoke production rate) and TSP (total smoke production) value of the composite material decreased by 65.6%, 16.2%, 61% and 37.1%, respectively. Finally, through analysis of the carbon residue after combustion of the TPU composite material, we found that the formed carbon layer is denser and the char yield is greatly improved.
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Affiliation(s)
- Yi Qian
- College of Chemical Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Jinying Zheng
- College of Environment and Safety Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Long Li
- College of Environment and Safety Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Peng Qiao
- College of Chemical Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Ying Li
- College of Environment and Safety Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Yinghui Duan
- College of Chemical Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Guozhang Chang
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University Yinchuan 750021 China
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