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Li D, Ti P, Huang L, Chen X, Zhu Q, Chen J, Yuan Q. High thermal conductivity regenerated cellulose/carboxylated carbon nanotubes composite films with semi-insulating properties prepared via ionic coordination and hydrothermal synthesis of zinc oxide. Int J Biol Macromol 2024; 264:130004. [PMID: 38325679 DOI: 10.1016/j.ijbiomac.2024.130004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/29/2024] [Accepted: 02/04/2024] [Indexed: 02/09/2024]
Abstract
With the rapid development of miniaturization and integration of electronic products, its heat dissipation has become the focus of research. In order to improve the heat dissipation efficiency of electronic components, flexible thermal conduction materials are constantly studied. Cellulose has good flexibility and load capacity, which is often used in the preparation of thermal conduction materials. In this paper, carboxylated multi-walled carbon nanotubes (C-MWCNTs) were modified by metal ion coordination and hydrothermal synthesis of zinc oxide (ZnO) to prepare semi-insulating thermal conduction fillers, which were dispersed into regenerated cellulose (RC) to cast to be composite films. The results show that the two modification methods can reduce the probability of phonon scattering and block the electron transport path, so as to improve the thermal conductivity (TC) and electrical insulation properties of the composite films. Especially for the RC/C-MWCNTs@ZnO composite films, when the total filler content is 20 wt%, the in-plane TC can reach 11.89 ± 0.19 (W/(m·K)), and the surface electrical resistivity (ρs) is (5.24 ± 0.17) × 106 Ω. Compared with the RC/C-MWCNTs composite films, the in-plane TC and ρs of the RC/C-MWCNTs@ZnO composites films are increased by about 94.92 % and 555 %, respectively. Therefore, the developed RC-based composite film has broad application prospects in thermal management.
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Affiliation(s)
- Duoduo Li
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Guangxi University, Nanning 530004, China
| | - Pu Ti
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Guangxi University, Nanning 530004, China
| | - Lijun Huang
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Guangxi University, Nanning 530004, China
| | - Xianfen Chen
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Guangxi University, Nanning 530004, China
| | - Qingtao Zhu
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Guangxi University, Nanning 530004, China
| | - Jiabin Chen
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Guangxi University, Nanning 530004, China.
| | - Quanping Yuan
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Guangxi University, Nanning 530004, China.
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Fan S, Gao X, Yang X, Li X. Infusing phytate-based biomass flame retardants into the cellulose lumens of Chinese fir wood attains superior flame retardant efficacy. Int J Biol Macromol 2024; 258:128975. [PMID: 38147971 DOI: 10.1016/j.ijbiomac.2023.128975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 12/12/2023] [Accepted: 12/20/2023] [Indexed: 12/28/2023]
Abstract
To be suitable for certain construction and furniture applications, wood must be treated with a flame retardant and impregnating flame retardants into the cellulose lumens of wood is an effective flame retardant method. Phytic acid, the main storage form of phosphorus in various plant tissues, is an inexpensive, and non-toxic biomaterial that shows potential applications as an environmentally friendly bio-based flame retardant. In this study, phytic acid and zinc phytate were used to impregnate delignified wood under vacuum and pressure, which greatly enhanced the flame retardancy and smoke suppression properties of Chinese fir, while still maintaining its original texture. Phytic acid and zinc phytate were hydrogen-bonded to cellulose in wood. Phytic acid and zinc phytate were hydrogen-bonded to cellulose in wood. The results showed that the total heat release (THR) of Chinese fir treated with zinc phytate decreased from 55.66 MJ/m2 to 5.90 MJ/m2, and a compact carbonized protective layer was quickly formed on the surface of Chinese fir after ignition. Thermogravimetric analysis (TGA) showed that the char yield of Chinese fir treated by the flame retardant was 177.6 % higher than that of untreated wood. This study provides an efficient, sustainable, and economical method to prepare Chinese fir with excellent flame retardancy and thermal insulation performance.
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Affiliation(s)
- Shutong Fan
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Xun Gao
- College of Architecture and Energy Engineering, Wenzhou University of Technology, Wenzhou 325006, China
| | - Xi Yang
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.
| | - Xianjun Li
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.
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Atinafu DG, Kim YU, Kim S, Kang Y, Kim S. Advances in Biocarbon and Soft Material Assembly for Enthalpy Storage: Fundamentals, Mechanisms, and Multimodal Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2305418. [PMID: 37967349 DOI: 10.1002/smll.202305418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 09/24/2023] [Indexed: 11/17/2023]
Abstract
High-value-added biomass materials like biocarbon are being actively pursued integrating them with soft materials in a broad range of advanced renewable energy technologies owing to their advantages, such as lightweight, relatively low-cost, diverse structural engineering applications, and high energy storage potential. Consequently, the hybrid integration of soft and biomass-derived materials shall store energy to mitigate intermittency issues, primarily through enthalpy storage during phase change. This paper introduces the recent advances in the development of natural biomaterial-derived carbon materials in soft material assembly and its applications in multidirectional renewable energy storage. Various emerging biocarbon materials (biochar, carbon fiber, graphene, nanoporous carbon nanosheets (2D), and carbon aerogel) with intrinsic structures and engineered designs for enhanced enthalpy storage and multimodal applications are discussed. The fundamental design approaches, working mechanisms, and feature applications, such as including thermal management and electromagnetic interference shielding, sensors, flexible electronics and transparent nanopaper, and environmental applications of biocarbon-based soft material composites are highlighted. Furthermore, the challenges and potential opportunities of biocarbon-based composites are identified, and prospects in biomaterial-based soft materials composites are presented.
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Affiliation(s)
- Dimberu G Atinafu
- Department of Architecture and Architectural Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Young Uk Kim
- Department of Architecture and Architectural Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Sungeun Kim
- Department of Architecture and Architectural Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Yujin Kang
- Department of Architecture and Architectural Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Sumin Kim
- Department of Architecture and Architectural Engineering, Yonsei University, Seoul, 03722, Republic of Korea
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Zheng G, Wei K, Kang X, Fan W, Ma NL, Verma M, Ng HS, Ge S. A new attempt to control volatile organic compounds (VOCs) pollution - Modification technology of biomass for adsorption of VOCs gas. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 336:122451. [PMID: 37648056 DOI: 10.1016/j.envpol.2023.122451] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/15/2023] [Accepted: 08/23/2023] [Indexed: 09/01/2023]
Abstract
The detrimental impact of volatile organic compounds on the surroundings is widely acknowledged, and effective solutions must be sought to mitigate their pollution. Adsorption treatment is a cost-effective, energy-saving, and flexible solution that has gained popularity. Biomass is an inexpensive, naturally porous material with exceptional adsorbent properties. This article examines current research on volatile organic compounds adsorption using biomass, including the composition of these compounds and the physical (van der Waals) and chemical mechanisms (Chemical bonding) by which porous materials adsorb them. Specifically, the strategic modification of the surface chemical functional groups and pore structure is explored to facilitate optimal adsorption, including pyrolysis, activation, heteroatom doping and other methods. It is worth noting that biomass adsorbents are emerging as a highly promising strategy for green treatment of volatile organic compounds pollution in the future. Overall, the findings signify that biomass modification represents a viable and competent approach for eliminating volatile organic compounds from the environment.
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Affiliation(s)
- Guiyang Zheng
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Kexin Wei
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xuelian Kang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Wei Fan
- School of Textile Science and Engineering & Key Laboratory of Functional Textile Material and Product of Ministry of Education, Xi'an Polytechnic University, Xi'an, Shanxi 710048, China
| | - Nyuk Ling Ma
- BIOSES Research Interest Group, Faculty of Science & Marine Environment, 21030 Universiti Malaysia Terengganu, Malaysia; Department of Sustainable Engineering, Institute of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 602105, India
| | - Meenakshi Verma
- University Centre for Research and Development, Department of Chemistry, Chandigarh University, Gharuan, Mohali, Punjab, India
| | - Hui Suan Ng
- Centre for Research and Graduate Studies, University of Cyberjaya, Persiaran Bestari, 63000 Cyberjaya, Selangor, Malaysia
| | - Shengbo Ge
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
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