1
|
Li Y, Ren P, Sun Z, Xue R, Ding D, Tian W, Ren F, Jin Y, Chen Z, Zhu G. High-strength, anti-fatigue, cellulose nanofiber reinforced polyvinyl alcohol based ionic conductive hydrogels for flexible strain/pressure sensors and triboelectric nanogenerators. J Colloid Interface Sci 2024; 669:248-257. [PMID: 38718578 DOI: 10.1016/j.jcis.2024.05.011] [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: 01/12/2024] [Revised: 04/30/2024] [Accepted: 05/03/2024] [Indexed: 05/27/2024]
Abstract
Ionic conductive hydrogels (ICHs) have attracted great attention because of their excellent biocompatibility and structural similarity with biological tissues. However, it is still a huge challenge to prepare a high strength, conductivity and durability hydrogel-based flexible sensor with dual network structure through a simple and environmentally friendly method. In this work, a simple one-pot cycle freezing thawing method was proposed to prepare ICHs by dissolving polyvinyl alcohol (PVA) and ferric chloride (FeCl3) in cellulose nanofiber (CNF) aqueous dispersion. A dual cross-linked network was established in hydrogel through the hydrogen bonds and coordination bonds among PVA, CNF, and FeCl3. This structure endows the as-prepared hydrogel with high sensitivity (pressure sensitivity coefficient (S) = 5.326 in the pressure range of 0-5 kPa), wide response range (4511 kPa), excellent durability (over 3000 cycles), short response time (83 ms) and recovery time (117 ms), which can accurately detect various human activities in real time. Furthermore, the triboelectric nano-generator (TENG) made from PVA@CNF-FeCl3 hydrogel can not only supply power for commercial capacitors and LED lamps, but also be used as a self-powered sensor to detect human motion. This work provides a new approach for the development of the next generation of flexible wearable electronic devices.
Collapse
Affiliation(s)
- Yanhao Li
- The Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an 710048, China
| | - Penggang Ren
- The Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an 710048, China; School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, China.
| | - ZhenFeng Sun
- The Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an 710048, China.
| | - Runzhuo Xue
- The Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an 710048, China
| | - Du Ding
- The Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an 710048, China
| | - Wenhui Tian
- School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, China
| | - Fang Ren
- The Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an 710048, China
| | - Yanling Jin
- The Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an 710048, China
| | - Zhengyan Chen
- The Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an 710048, China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Sichuan 610065, China
| | - Guanjun Zhu
- College of Engineering, Xi'an International University, Xi'an 710077, China
| |
Collapse
|
2
|
Han Y, Wang Z, Sun H, Chi Y, Li J, Zhang D, Liu H, Dong L, Liu C, Shen C. Temperature-Tolerant Versatile Conductive Zwitterionic Nanocomposite Organohydrogel toward Multisensory Applications. ACS APPLIED MATERIALS & INTERFACES 2024; 16:38606-38619. [PMID: 38980998 DOI: 10.1021/acsami.4c08984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Conductive hydrogels (CHs) are emerging materials for next generation sensing systems in flexible electronics. However, the fabrication of competent CHs with excellent stretchability, adhesion, self-healing, photothermal conversion, multisensing, and environmental stability remains a huge challenge. Herein, a nanocomposite organohydrogel with the above features is constructed by in situ copolymerization of zwitterionic monomer and acrylamide in the existence of carboxylic cellulose nanofiber-carrying reduced graphene oxide (rGO) plus a solvent displacement strategy. The synergy of abundant dipole-dipole interactions and intermolecular hydrogen bonds enables the organohydrogel to exhibit high stretchability, strong adhesion, and good self-healing. The presence of glycerol weakens the formation of hydrogen bonds between water molecules, endowing the organohydrogel with excellent environmental stability (-40 to 60 °C) to adapt to different application scenarios. Importantly, the multimodal organohydrogel presents excellent sensing behavior, including a high gauge factor of 16.3 at strains of 400-1440% and a reliable thermal coefficient of resistance (-4.2 °C-1) over a wide temperature widow (-40 to 60 °C). Moreover, the organohydrogel displays a highly efficient and reliable photothermal conversion ability due to the favorable optical absorbing behavior of rGO. Notably, the organohydrogel can detect accurate human activities at ambient temperature, demonstrating potential applications in flexible intelligent electronics.
Collapse
Affiliation(s)
- Yupan Han
- State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment; National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan 450002, China
| | - Ziqi Wang
- State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment; National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan 450002, China
| | - Hongling Sun
- State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment; National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan 450002, China
| | - Yalin Chi
- State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment; National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan 450002, China
| | - Jianwei Li
- Henan Academy of Sciences, Zhengzhou, Henan 450002, China
| | - Dianbo Zhang
- Center for Advanced Materials Research, Zhongyuan University of Technology, Zhengzhou, Henan 450007, China
| | - Hu Liu
- State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment; National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan 450002, China
| | - Lin Dong
- School of Physics & Microelectronics, Zhengzhou University, Zhengzhou, Henan 450002, China
| | - Chuntai Liu
- State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment; National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan 450002, China
| | - Changyu Shen
- State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment; National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan 450002, China
| |
Collapse
|
3
|
Zhu Y, Yao D, Gao X, Chen J, Wang H, You T, Lu C, Pang X. Recyclable Bimodal Polyvinyl Alcohol/PEDOT:PSS Hydrogel Sensors for Highly Sensitive Strain and Temperature Sensing. ACS APPLIED MATERIALS & INTERFACES 2024; 16:32466-32480. [PMID: 38864420 DOI: 10.1021/acsami.4c05878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Multimodal flexible sensors, consisting of multiple sensing units, can sense and recognize different external stimuli by outputting different types of response signals. However, the recovery and recycling of multimodal sensors are impeded by complex structures and the use of multiple materials. Here, a bimodal flexible sensor that can sense strain by resistance change and temperature by voltage change was constructed using poly(vinyl alcohol) hydrogel as a matrix and poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS) as a sensing material due to its conductivity and thermoelectric effect. The plasticity of hydrogels, along with the simplicity of the sensor's components and structure, facilitates easy recovery and recycling. The incorporation of citric acid and ethylene glycol improved the mechanical properties, strain hysteresis, and antifreezing properties of the hydrogels. The sensor exhibits a remarkable response to strain, characterized by high sensitivity (gauge factor of 4.46), low detection limit (0.1%), fast response and recovery times, minimal hysteresis, and excellent stability. Temperature changes induced by hot air currents, hot objects, and light cause the sensor to exhibit high response sensitivity, fast response time, and good stability. Additionally, variations in ambient humidity and temperature minimally affect the sensor's strain response, and temperature response remains unaffected by humidity changes. The recycled sensors are essentially unchanged for bimodal sensing of strain and temperature. Finally, bimodal sensors are applied to monitor body motion, and robots to sense external stimuli.
Collapse
Affiliation(s)
- Yan Zhu
- School of Chemistry & Chemical Engineering, Henan University of Science &Technology, Luoyang 471003, P. R. China
| | - Dahu Yao
- School of Materials Science and Engineering, Henan University of Science & Technology, Luoyang 471023, P. R. China
| | - Xiping Gao
- School of Materials Science and Engineering, Henan University of Science & Technology, Luoyang 471023, P. R. China
| | - Jing Chen
- School of Materials Science and Engineering, Henan University of Science & Technology, Luoyang 471023, P. R. China
| | - Hui Wang
- School of Chemistry & Chemical Engineering, Henan University of Science &Technology, Luoyang 471003, P. R. China
| | - Tianyan You
- College of Agricultural Equipment Engineering, Henan University of Science and Technology, Luoyang 471023, China
| | - Chang Lu
- School of Materials Science and Engineering, Henan University of Science & Technology, Luoyang 471023, P. R. China
| | - Xinchang Pang
- School of Materials Science and Engineering, Henan University of Science & Technology, Luoyang 471023, P. R. China
| |
Collapse
|
4
|
Xue Y, Lai X, Wang L, Shi H, Liu G, Liu X, Chen X. A stimuli-responsive hydrogel for reversible information storage, encryption and decryption. J Colloid Interface Sci 2024; 662:231-241. [PMID: 38350346 DOI: 10.1016/j.jcis.2024.02.066] [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: 11/29/2023] [Revised: 01/22/2024] [Accepted: 02/06/2024] [Indexed: 02/15/2024]
Abstract
Smart hydrogel materials, known for their sensitivity to external stimuli, exhibit a reversible dynamic response and find applications in diverse fields, particularly in information storage. Despite significant efforts in this domain, developing a hydrogel with high-resolution, repeatable recording, and robust information encryption/decryption capabilities still remains a challenge. In this study, we synthesized a polymer hydrogel, namely polyvinyl alcohol-n-isopropylacrylamide-octadecyl polyoxyethylene ether acrylate hydrogel (PPNS), which features multiple hydrogen bonds through copolymerization, by using N-isopropylacrylamide, polyvinyl alcohol, and octadecyl polyoxyethylene ether acrylate (SGA15) as raw materials. The PPNS hydrogel demonstrated outstanding high-resolution, repeatable recording capabilities, enabling reversible recording, encryption, and decryption of information using anhydrous ethanol as the inducer. Varying the SGA15 monomer concentration revealed that the PPNS-2% hydrogel, prepared with 2% SGA15, outperformed the other hydrogels in terms of information recording and encryption/decryption when immersed in anhydrous ethanol and deionized water. Furthermore, the PPNS-2% hydrogel exhibited the ability to undergo multiple information cycles while maintaining excellent mechanical properties even after 25 cycles. Notably, ethanol served as a specialized ink for inscribing different patterns on the hydrogel surface for information recording. The recorded information could be erased through water wiping or ethanol volatilization, enabling reversible information recording, encryption, and decryption. Due to their responsive and dynamic nature of PPNS hydrogels are positions them as promising candidates for use as innovative information storage platforms.
Collapse
Affiliation(s)
- Yuyu Xue
- Key Laboratory of Auxiliary Chemistry &Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science &Technology, Weiyang district, Xi'an 710021, PR China
| | - Xiaojuan Lai
- Key Laboratory of Auxiliary Chemistry &Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science &Technology, Weiyang district, Xi'an 710021, PR China; Shaanxi Research Institute of Agricultural Products Processing Technology, Weiyang district, Xi'an 710021, PR China.
| | - Lei Wang
- Key Laboratory of Auxiliary Chemistry &Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science &Technology, Weiyang district, Xi'an 710021, PR China; Shaanxi Research Institute of Agricultural Products Processing Technology, Weiyang district, Xi'an 710021, PR China.
| | - Huaqiang Shi
- Research Institute of Oil & Gas Technology, Changqing Oilfield Branch Company, Xi'an 710021, PR China
| | - Guiru Liu
- Key Laboratory of Auxiliary Chemistry &Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science &Technology, Weiyang district, Xi'an 710021, PR China
| | - Xuan Liu
- Key Laboratory of Auxiliary Chemistry &Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science &Technology, Weiyang district, Xi'an 710021, PR China
| | - XiangLi Chen
- Key Laboratory of Auxiliary Chemistry &Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science &Technology, Weiyang district, Xi'an 710021, PR China
| |
Collapse
|
5
|
Yan Z, Jiang S, Xi J, Ye W, Meng L, Xiao H, Wu W. Frost-resistant nanocellulose-based organohydrogel with high mechanical strength and transparency. J Colloid Interface Sci 2024; 661:879-887. [PMID: 38330660 DOI: 10.1016/j.jcis.2024.02.002] [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: 11/02/2023] [Revised: 01/30/2024] [Accepted: 02/01/2024] [Indexed: 02/10/2024]
Abstract
Improving mechanical strength and frost-resistance is an important research direction in the field of hydrogel materials. Herein, using bacterial nanocellulose (BC) as a reinforcing agent and polyvinyl alcohol (PVA) as a polymer matrix, a frost-resistant organohydrogel was constructed via the freezing-thawing method in a new binary solvent system of N, N-dimethylformamide and water (DMF-H2O), which was designed according to the Hansen Solubility Parameter. Owing to the solvent-induced crystallization effect that led to the enhanced 3D hydrogen bonding network during the freezing-thawing process, the optimal organohydrogel achieved excellent mechanical properties with the tensile strength of 2,974 kPa and the stretchability of 277 % at room temperature, respectively. In the visiblelight range, the organohydrogel demonstrated high transmittance. Moreover, the presence of a DMF-H2O binary solvent endows it with frost-resistance, retaining the tensile strength of 508 kPa and a stretchability of 190 % even at -70 °C, respectively. This kind of transparent, frost-resistant organohydrogel has potential uses in harsh settings due to its great mechanical strength.
Collapse
Affiliation(s)
- Zifei Yan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Shan Jiang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Jianfeng Xi
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
| | - Wenjie Ye
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Liucheng Meng
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Weibing Wu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
| |
Collapse
|
6
|
Wang Y, Li P, Cao S, Liu Y, Gao C. Nanoarchitectonics composite hydrogels with high toughness, mechanical strength, and self-healing capability for electrical actuators with programmable shape memory properties. NANOSCALE 2023; 15:18667-18677. [PMID: 37921452 DOI: 10.1039/d3nr03578f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
Hydrogel materials show promise in various fields, including flexible electronic devices, biological tissue engineering and wound dressing. Nevertheless, the inadequate mechanical properties, recovery performance, and self-healing speed still constrain the development of intelligent hydrogel materials. To tackle these challenges, we designed a composite hydrogel with high mechanical strength, rapid self-recovery and efficient self-healing ability based on multiple synergistic effects. With the synergistic effect of hydrogen bonds, metal coordination bonds and electrostatic interaction, the synthesized hydrogel could reach a maximum tensile strength of 6.2 MPa and a toughness of 50 MJ m-3. The interaction between the weak polyelectrolyte polyethyleneimine and polyacrylic acid aided in improving the elasticity of the hydrogel, thereby endowing it with prompt self-recovery attributes. The multiple reversible effects also endowed the hydrogel with excellent self-healing ability, and the fractured hydrogel could achieve 95% self-healing within 4 h at room temperature. By the addition of glycerol, the hydrogel could also cope with a variety of extreme environments in terms of moisture retention (12 h, maintaining 80% of its water content) and freeze protection (-36.8 °C) properties. In addition, the composite hydrogels applied in the field of shape memory possessed programmable and reversible shape transformation properties. The polymer chains were entangled at high temperatures to achieve shape fixation, and shape memory was eliminated at low temperatures, which allowed the hydrogels to be reprogrammed and achieve multiple shape transitions. In addition, we also assemble composite hydrogels as actuators and robotic arms for intelligent applications.
Collapse
Affiliation(s)
- Yanqing Wang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Pengcheng Li
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Shuting Cao
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Yuetao Liu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Chuanhui Gao
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| |
Collapse
|