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Xiao W, Liu Y, Yan J, Su W, Wang Y, Wu H, Gao J. Mechanically robust and electrically conductive nanofiber composites with enhanced interfacial interaction for strain sensing. J Colloid Interface Sci 2024; 673:190-201. [PMID: 38871626 DOI: 10.1016/j.jcis.2024.06.045] [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: 03/13/2024] [Revised: 06/03/2024] [Accepted: 06/05/2024] [Indexed: 06/15/2024]
Abstract
Electrically conductive fiberfibre/fabric composites (ECFCs) are competitive candidates for use in wearable electronics. Therefore, it is essential to develop mechanically robust ECFC strain sensors with sensing performance. In this study, MXene assembly and hot-pressing were combined to prepare strong yet breathable ECFCs for strain and temperature sensing. Hydrogen bonding between MXene and polyurethane (PU) and ultrasonication-induced interfacial sintering were responsible for MXene nanosheets assembly on the PU nanofibers. MXene decoration made PU nanofibers electrically conductive, resulting in a conductive network. Hot-pressing improved interface adhesion among the conductive nanofibers. Thus, the mechanical properties of the nanofiber composites, including tensile strength, toughness and fracture energy, were enhanced. The nanofiber composites exhibited surface stability and durability. When the nanofiber composites were used as strain sensors, they showed breathability with a linear resistance response ranging from 1 % to 100 % and cycling stability. In addition, they produced stable sensing signals over 1000 cycles when a notch was present. They could also monitor temperature variations with a negative temperature coefficient (-0.146 %/°C). This study provides an interfacial regulation method for the preparation of multi-functional nanofiber composites with potential applications in flexible and wearable electronics.
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Affiliation(s)
- Wei Xiao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China
| | - Yuntao Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China
| | - Jun Yan
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China
| | - Wenwen Su
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China
| | - Yuqing Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China
| | - Haidi Wu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China
| | - Jiefeng Gao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China.
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Ni Y, Chen J, Chen K. Flexible vanillin-polyacrylate/chitosan/mesoporous nanosilica-MXene composite film with self-healing ability towards dual-mode sensors. Carbohydr Polym 2024; 335:122042. [PMID: 38616072 DOI: 10.1016/j.carbpol.2024.122042] [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: 12/14/2023] [Revised: 02/29/2024] [Accepted: 03/10/2024] [Indexed: 04/16/2024]
Abstract
Manufacturing flexible sensors with prominent mechanical properties, multifunctional sensing abilities, and remarkable self-healing capabilities remains a difficult task. In this study, a novel vanillin-modified polyacrylate (VPA), which is capable of forming green dynamic covalent crosslinking with chitosan (CS), was synthesized. The synthesized VPA was combined with mesoporous silica-modified MXene (AMS-MXene) and covalently cross-linked simultaneously with CS, resulting in the formation of a flexible composite conductive film designed for dual-mode sensors. Due to the multidimensional structure formed by the mesoporous silica and MXene layers, the resulting composite film is not only suitable for strain sensing but also excels in gas response sensing. Most importantly, the composite films demonstrate a remarkable self-healing capability through reversible dynamic covalent bonds, specifically Schiff base bonds, coupled with multiple hydrogen bonding interactions with AMS-MXene. This robust self-repair functionality remains effective even at a low temperature of 30 °C. Additionally, the synergistic antibacterial effect exerted by vanillin and CS in the film can endow the composite sensor with excellent antimicrobial properties. This multifunctional composite film holds tremendous potential for applications in green flexible wearable sensors. Furthermore, it can show diverse applications in a wide variety of fields, driving advances in wearable technology and human health monitoring.
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Affiliation(s)
- Yezhou Ni
- Key Laboratory of Eco-Textile, Ministry of Education, College of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China
| | - Jingyu Chen
- Key Laboratory of Eco-Textile, Ministry of Education, College of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China
| | - Kunlin Chen
- Key Laboratory of Eco-Textile, Ministry of Education, College of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China.
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Du P, Zhao X, Zhan X, Li X, Hou K, Ji Y, Fan Z, Muhammad J, Ge F, Cai Z. A High-Performance Passive Radiative Cooling Metafabric with Janus Wettability and Thermal Conduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403751. [PMID: 38940499 DOI: 10.1002/smll.202403751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 06/19/2024] [Indexed: 06/29/2024]
Abstract
With the development of industry and global warming, passive radiative cooling textiles have recently drawn great interest owing to saving energy consumption and preventing heat-related illnesses. Nevertheless, existing cooling textiles often lack efficient sweat management capacity and wearable comfort under many practical conditions. Herein, a hierarchical cooling metafabric that integrates passive radiation, thermal conduction, sweat evaporation, and excellent wearable comfort is reported through an electrospinning strategy. The metafabric presents excellent solar reflectivity (99.7%, 0.3-2.5 µm) and selective infrared radiation (92.4%, 8-13 µm), given that the unique optical nature of materials and wettability gradient/micro-nano hierarchical structure design. The strong moisture-wicking effect (water vapor transmission (WVT) of 2985 g m-2 d-1 and directional water transport index (R) of 1029.8%) and high heat-conduction capacity can synergistically enhance the radiative cooling efficiency of the metafabric. The outdoor experiment reveals that the metafabric can obtain cooling temperatures of 13.8 °C and 19.3 °C in the dry and sweating state, respectively. Meanwhile, the metafabric saves ≈19.3% of annual energy consumption compared with the buildings with HAVC systems in Shanghai. The metafabric also demonstrates desirable breathability, mechanical strength, and washability. The cost-effective and high-performance metafabric may offer a novel avenue for developing next-generation personal cooling textiles.
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Affiliation(s)
- Peibo Du
- National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620, P. R. China
| | - Xingshun Zhao
- National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620, P. R. China
| | - Xiongwei Zhan
- National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620, P. R. China
| | - Xiaoyan Li
- National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620, P. R. China
| | - Keru Hou
- National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620, P. R. China
| | - Yating Ji
- National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620, P. R. China
| | - Zhuizhui Fan
- National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620, P. R. China
| | - Javed Muhammad
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Fengyan Ge
- National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620, P. R. China
| | - Zaisheng Cai
- National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620, P. R. China
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Ma Y, Gong J, Li Q, Liu X, Qiao C, Zhang J, Zhang S, Li Z. Triple-Mechanism Enhanced Flexible SiO 2 Nanofiber Composite Hydrogel with High Stiffness and Toughness for Cartilaginous Ligaments. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310046. [PMID: 38183373 DOI: 10.1002/smll.202310046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 12/19/2023] [Indexed: 01/08/2024]
Abstract
Hydrogels are widely used in tissue engineering, soft robotics and wearable electronics. However, it is difficult to achieve both the required toughness and stiffness, which severely hampers their application as load-bearing materials. This study presents a strategy to develop a hard and tough composite hydrogel. Herein, flexible SiO2 nanofibers (SNF) are dispersed homogeneously in a polyvinyl alcohol (PVA) matrix using the synergistic effect of freeze-drying and annealing through the phase separation, the modulation of macromolecular chain movement and the promotion of macromolecular crystallization. When the stress is applied, the strong molecular interaction between PVA and SNF effectively disperses the load damage to the substrate. Freeze-dried and annealed-flexible SiO2 nanofibers/polyvinyl alcohol (FDA-SNF/PVA) reaches a preferred balance between enhanced stiffness (13.71 ± 0.28 MPa) and toughness (9.9 ± 0.4 MJ m-3). Besides, FDA-SNF/PVA hydrogel has a high tensile strength of 7.84 ± 0.10 MPa, super elasticity (no plastic deformation under 100 cycles of stretching), fast deformation recovery ability and excellent mechanical properties that are superior to the other tough PVA hydrogels, providing an effective way to optimize the mechanical properties of hydrogels for potential applications in artificial tendons and ligaments.
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Affiliation(s)
- Yvqing Ma
- State Key Laboratory of Separation Membranes and Membrane Processes/ National Center for International Joint Research on Separation Membranes/Key Laboratory of Advanced Textile Composites of Ministry of Education, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, P. R. China
| | - Jixian Gong
- State Key Laboratory of Separation Membranes and Membrane Processes/ National Center for International Joint Research on Separation Membranes/Key Laboratory of Advanced Textile Composites of Ministry of Education, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, P. R. China
| | - Qiujin Li
- State Key Laboratory of Separation Membranes and Membrane Processes/ National Center for International Joint Research on Separation Membranes/Key Laboratory of Advanced Textile Composites of Ministry of Education, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, P. R. China
| | - Xiuming Liu
- State Key Laboratory of Separation Membranes and Membrane Processes/ National Center for International Joint Research on Separation Membranes/Key Laboratory of Advanced Textile Composites of Ministry of Education, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, P. R. China
| | - Changsheng Qiao
- School of Biological Engineering, Tianjin University of Science and Technology, Tianjin, 300457, P. R. China
| | - Jianfei Zhang
- National Innovation Center of Advanced Dyeing and Finishing Technology, Taian, 271001, P. R. China
| | - Songnan Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes/ National Center for International Joint Research on Separation Membranes/Key Laboratory of Advanced Textile Composites of Ministry of Education, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, P. R. China
| | - Zheng Li
- State Key Laboratory of Separation Membranes and Membrane Processes/ National Center for International Joint Research on Separation Membranes/Key Laboratory of Advanced Textile Composites of Ministry of Education, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, P. R. China
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Xing F, Gao X, Wen J, Li H, Liu H, Wang ZL, Chen B. Multistrand Twisted Triboelectric Kevlar Yarns for Harvesting High Impact Energy, Body Injury Location and Levels Evaluation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2401076. [PMID: 38489669 DOI: 10.1002/advs.202401076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/23/2024] [Indexed: 03/17/2024]
Abstract
Developing ultrahigh-strength fabric-based triboelectric nanogenerators for harvesting high-impact energy and sensing biomechanical signals is still a great challenge. Here, the constraints are addressed by design of a multistrand twisted triboelectric Kevlar (MTTK) yarn using conductive and non-conductive Kevlar fibers. Manufactured using a multistrand twisting process, the MTTK yarn offers superior tensile strength (372 MPa), compared to current triboelectric yarns. In addition, a self-powered impact sensing fabric patch (SP-ISFP) comprising signal acquisition, processing, communication circuit, and MTTK yarns is integrated. The SP-ISFP features withstanding impact (4 GPa) and a sensitivity and response time under the high impact condition (59.68 V GPa-1; 0.4 s). Furthermore, a multi-channel smart bulletproof vest is developed by the array of 36 SP-ISFPs, enabling the reconstruction of impact mapping and assessment of body injury location and levels by real-time data acquisition. Their potential to reduce body injuries, professional security, and construct a multi-point personal vital signs dynamic monitoring platform holds great promise.
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Affiliation(s)
- Fangjing Xing
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiaobo Gao
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot, 010051, P. R. China
| | - Jing Wen
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hao Li
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hui Liu
- Changchun University of Chinese Medicine, Jilin, 130117, P. R. China
| | - Zhong Lin Wang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Baodong Chen
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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Wu Y, Zhang Y, Liao Z, Wen J, Zhang H, Wu H, Liu Z, Shi Y, Song P, Tang L, Xue H, Gao J. Water vapor assisted aramid nanofiber reinforcement for strong, tough and ionically conductive organohydrogels as high-performance strain sensors. MATERIALS HORIZONS 2024; 11:1272-1282. [PMID: 38165275 DOI: 10.1039/d3mh01560b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Conductive organohydrogels have gained increasing attention in wearable sensors, flexible batteries, and soft robots due to their exceptional environment adaptability and controllable conductivity. However, it is still difficult for conductive organohydrogels to achieve simultaneous improvement in mechanical and electrical properties. Here, we propose a novel "water vapor assisted aramid nanofiber (ANF) reinforcement" strategy to prepare robust and ionically conductive organohydrogels. Water vapor diffusion can induce the pre-gelation of the polymer solution and ensure the uniform dispersion of ANFs in organohydrogels. ANF reinforced organohydrogels have remarkable mechanical properties with a tensile strength, stretchability and toughness of up to 1.88 ± 0.04 MPa, 633 ± 30%, and 6.75 ± 0.38 MJ m-3, respectively. Furthermore, the organohydrogels exhibit great crack propagation resistance with the fracture energy and fatigue threshold as high as 3793 ± 167 J m-2 and ∼328 J m-2, respectively. As strain sensors, the conductive organohydrogel demonstrates a short response time of 112 ms, a large working strain and superior cycling stability (1200 cycles at 40% strain), enabling effective monitoring of a wide range of complex human motions. This study provides a new yet effective design strategy for high performance and multi-functional nanofiller reinforced organohydrogels.
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Affiliation(s)
- Yongchuan Wu
- School of Chemistry and Chemical Engineering, Yangzhou University, No 180, Road Siwangting, Yangzhou, Jiangsu, 225002, China.
| | - Ya Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University, No 180, Road Siwangting, Yangzhou, Jiangsu, 225002, China.
| | - Zimin Liao
- School of Chemistry and Chemical Engineering, Yangzhou University, No 180, Road Siwangting, Yangzhou, Jiangsu, 225002, China.
| | - Jing Wen
- School of Chemistry and Chemical Engineering, Yangzhou University, No 180, Road Siwangting, Yangzhou, Jiangsu, 225002, China.
| | - Hechuan Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University, No 180, Road Siwangting, Yangzhou, Jiangsu, 225002, China.
| | - Haidi Wu
- School of Chemistry and Chemical Engineering, Yangzhou University, No 180, Road Siwangting, Yangzhou, Jiangsu, 225002, China.
| | - Zhanqi Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, No 180, Road Siwangting, Yangzhou, Jiangsu, 225002, China.
| | - Yongqian Shi
- College of Environment and Safety Engineering, Fuzhou University, Fuzhou 350116, China
| | - Pingan Song
- Centre for Future Materials, University of Southern Queensland, Springfield Campus, QLD 4300, Australia
| | - Longcheng Tang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of MoE, Key Laboratory of Silicone Materials Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, China
| | - Huaiguo Xue
- School of Chemistry and Chemical Engineering, Yangzhou University, No 180, Road Siwangting, Yangzhou, Jiangsu, 225002, China.
| | - Jiefeng Gao
- School of Chemistry and Chemical Engineering, Yangzhou University, No 180, Road Siwangting, Yangzhou, Jiangsu, 225002, China.
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