APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Yimeng Li,Mengqi Shan,Jiamin Peng,Lizhen Lan,Leqian Wei,Lamei Guo,Fujun Wang,Ze Zhang,Lu Wang,Jifu Mao
Highly stretchable and conductive fibers as crucial components for stretchy electronic textiles have developed rapidly in recent years, benefiting from the design of stretchable structures. However, routes toward continuous production via simpler fabrication processes remain a huge challenge that has greatly limited its widespread application. In this work, we reported an intrinsically stretchable multifilament with both highly stretchable and conductive (537 S m −1 under 100 % strain) polypyrrole (PPy) coating enhanced by sodium sulfosalicylate (NaSSA) as a dopant. Based on this, a post-drawing method was further proposed to continuously fabricate stretchable conductors with PPy buckling on surface. The PU multifilament with buckle PPy coating (PU@bPPy) exhibited a high and ultra-stable conductance, showing initial conductivity at 529 S m −1 and only 3.5 % change in resistance after > 6500 stretching cycles at 50 % strain. Moreover, the PU@bPPy could be easily integrated into electronic textiles as stretchable electronic circuits and stretchable joule heaters.
研究领域:
材料科学
·
纺织工程
·
电子学
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2020
·Vol. 10
·期 33
·19466-19473
·
IF 3.119
Chao-Hua Xue,Qian-Qian Tian,Shun-Tian Jia,Ling-Ling Zhao,Ya-Ru Ding,Hui-Gui Li,Qiu-Feng An
Stretchable superhydrophobic film was fabricated by casting silicone rubber polydimethylsiloxane (PDMS) on a SiO2 nanoparticle-decorated template and subsequent stripping. PDMS endowed the resulting surface with excellent flexibility and stretchability. The use of nanoparticles contributed to the sustained roughening of the surface, even under large strain, offering mechanically durable superhydrophobicity. The resulting composite film could maintain its superhydrophobicity (water contact angle ≈ 161° and sliding angle close to 0°) under a large stretching strain of up to 100% and could withstand 500 stretching–releasing cycles without losing its superhydrophobic properties. Furthermore, the obtained film was resistant to long term exposure to different pH solutions and ultraviolet light irradiation, as well as to manual destruction, sandpaper abrasion, and weight pressing.
研究领域:
材料科学
·
表面工程
·
纳米技术
✓ 已验证
DOI
PubMed
高影响因子
Energy Technology
·
2023
·Vol. 11
·期 6
·2201358
·
IF 3.8
Ganghong Zhang,Xiaotian Wu,Tianlong Du,Yu Wang,Zhengying Liu,Wei Yang,Mingbo Yang
The challenge to prepare conductive hydrogel electrodes for stretchable supercapacitors with high areal capacitance and excellent stability during stretching has attracted tremendous attention from researchers. Herein, a method to enhance the performance of a conductive hydrogel electrode is reported. The in situ oxidative polymerization of aniline monomer is performed in the prestretched polyacrylamide (PAAm) hydrogel. After releasing the hydrogel, the polyaniline (PANI) nanoparticles can shrink with the PAAm substrate to form a dense and continuous conductive network. Due to the enhanced conductive networks, the prestretched PAAm-PANI conductive hydrogel with prestrain of 500% (PPCH 5 ) electrode shows high areal capacitance of 509.9 mF cm −2 at 0.5 mA cm −2 . The symmetrical stretchable supercapacitor based on PPCH 5 electrodes exhibits a high areal capacitance of 219.7 mF cm −2 . The device shows high capacitance retention of 68.5% even when stretched to 200% strain and noncapacitance decays after 2000 stretching cycles at 100% strain. This strategy can be expanded to the carbon nanotubes (CNT)-filled hydrogel systems. The PAAm-PANI-CNT conductive hydrogel with prestrain of 500%-based supercapacitor shows specific capacitance of 1429.87 mF cm −2 . The results demonstrate that prestretching is a highly effective method to enhance capacitance and stretching stability of PANI hydrogel electrode for stretchable supercapacitors.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Qilin Wang,Zhao Liu,Chen Tang,Huan Sun,Lin Zhu,Zhuangzhuang Liu,Ke Li,Jia Yang,Gang Qin,Gengzhi Sun,Qiang Chen
The weak adhesion between two hydrogel layers may lead to the delamination of bilayer hydrogels or low force transfer efficiency during deformation. Here, tough interfacial adhesive bilayer hydrogels with rapid shape deformation and recovery were prepared by simple attachment-heating of two gel layers. The bilayer hydrogels, composed of a shape memory gel (S-gel) and an elastic gel (E-gel), exhibited extremely tough interfacial adhesion between two layers (Γ ∼ 2200 J/m2). The shape deformation and shape recovery of the bilayer hydrogels, tuned by “heating–stretching” mode and “stretching–heating–stretching” mode, were rapid (<5 s) and no delamination between two gel layers was detected during shape deformation. Based on the fast shape deformation and recovery, the bilayer hydrogels could mimic the flower and hand, and a gel gripper could be fabricated to catch the object in the hot water. This work provides a simple method to prepare tough adhesive bilayer hydrogels with controlled shape deformation.
研究领域:
材料科学
·
聚合物化学
·
软体机器人
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Small
·
2024
·
IF 13
Shizhe Peng,Jia Li,Yihan Hu,Jinwei Cao,Ming Zhou,Lu Lu,Yude Su
A decent stretchability is of paramount significance to operate microbial fuel cell (MFC) under mechanically dynamic conditions. However, it remains a grand challenge to fabricate fully stretchable MFC without compromising its power output. Here, using Shewanella oneidensis MR-1 ( S. oneidensis ) as the model electrogenic bacteria, the study demonstrates a fully stretchable MFC device that can operate with a stretchability of 75%. The design takes advantage of a stretchable and ion-conductive polyurethane membrane, which encapsulates the biohybrids composed of S. oneidensis and reduced graphene oxide (rGO) on the polydimethylsiloxane (PDMS) current collector for synchronous stretching. It is discovered that the “stretchable” living biohybrids can sustain an adaptive bio-current output under stretching/releasing stimulation. The design also employs a stretchable air cathode. The stabilized peak power density of the stretchable MFC follows an increasing trend with the applied strain, and reaches 5.0 ± 0.7, 5.9 ± 0.9, 6.2 ± 1.1, 6.6 ± 1.4 µW cm −2 at strains of 0%, 25%, 50%, and 75%, respectively (n = 3). At 75% strain, the stretchable MFC yields a maximum current output of 104 ± 27 µA cm −2 and an open-circuit voltage of 283 ± 30 mV (n = 3). The results provide insights to design stretchable MFCs to power the next-generation on-skin devices, soft robotics, and sustainable electronics.
研究领域:
生物工程
·
能源材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Nano
·
2024
·
IF 15.8
Yi Zhao,Wen-Ting Fan,Kai-Qi Jin,Jing Yan,Yu-Ting Qi,Wei-Hua Huang,Yan-Ling Liu
Nanoplastics from air pollutants can be directly inhaled into the alveoli in the lungs and further enter blood circulation, and numerous studies have revealed the close relation between internalized nanoplastics with many physiological disorders via intracellular oxidative stress. However, the dynamic process of nanoplastics-induced oxidative stress in lung cells under breath-mimicked conditions is still unclear, due to the lack of methods that can reproduce the mechanical stretching of the alveolar and simultaneously monitor the oxidative stress response. Here, we describe a biomimetic platform by culturing alveoli epithelial cells on a stretchable electrochemical sensor and integrating them into a microfluidic device. This allows reproducing the respiration of alveoli by cyclic stretching of the alveoli epithelial cells and monitoring the nanoplastics-induced oxidative stress by the built-in sensor. By this device, we prove that cyclic stretches can greatly enhance the cellular uptake of nanoplastics with the dependencies of strain amplitude. Importantly, oxidative stress evoked by internalized nanoplastics can be quantitatively monitored in real time. This work will promote the deep understanding about the cytotoxicity of inhaled nanoplastics in the pulmonary mechanical microenvironment.
研究领域:
生物医学工程
·
毒理学
·
环境科学
·
细胞生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ENERGY AND BUILDINGS
·
2023
·
IF 6.7
Yangjiu Zhao,Shaowei Shen,Xinya Wang,Ruirui Cao,Xiaoyong Jia,Xiling Niu,Haihui Liu,Xingxiang Zhang
Phase change materials (PCMs) can alleviate concerns about energy to a certain extent by reversibly storing a plenty of renewable and sustainable thermal energy. However, they do not have any flexibility due to their liquid leakage and solid rigidity, making them unsuitable for further practical wearable applications. Herein, a series of SEBS/ n -alkane PCM composite films (PCMFs) were fabricated. SEBS is mainly used as the supporting substrate to prevent the leakage of liquid n -alkanes and endue the PCMFs with excellent mechanical properties. Where, the tensile strain and tensile strength of SEBS/ n -HD-50% PCMF separately are 780% and 9.96 MPa, representing excellent stretchability and deformability, tailorability, and foldability. Particularly, the onset melting and crystallization temperatures ( T mo , T co ) of SEBS/ n -ES-50% and SEBS/ n -DS-50% PCMFs individually are 28.1 °C and 28.4 °C, 33.8 °C and 35.7 °C, which match the comfort zone for human skin and the ideal thermo-response temperature range of smart windows, and a range of experiments have verified their feasibility in the fields of thermal management, smart windows and infrared stealth. This study well solves the problems of liquid leakage and solid rigidity of PCMs themselves, endows them with excellent comprehensive performance, and greatly expanding the practical applications of PCMs.
研究领域:
材料科学
·
热工程
·
复合材料
·
能量存储
·
可穿戴技术
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2021
·
IF 3.764
Xiangrong Shi,Kuiyuan Zhang,Liwei Zhao,Bo Jiang,Yudong Huang
Self-healable siloxane elastomers have recently attracted much interest in research for applications in flexible electronic devices. However, it remains a challenge for self-healable siloxane elastomers to realize good mechanical and rapid high-efficiency self-healable properties at room temperature. Herein, a desirable siloxane polymer elastomer was designed by the synergy of multiple dynamic bonds. In this self-healable system, the disulfide bonds as sacrificial bonds and hydrogen bonds as weak bonds could endow elastomers with rapid self-healability and high stretchability. Whereas, the Fe-coordination bonds could tune the robustness of a siloxane elastomer. Due to the synergy of multiple dynamic bonds, the self-healable PDMS-SS-DOPA1-Fe2 elastomer achieved high stretchability of 1100%, tensile stress of 1.11 MPa, and high self-healable efficiency of 96% (within 3 h). Moreover, after healing for 3 min at room temperature, the damaged siloxane elastomers were able to obtain a breaking strain of 250% and tensile stress of 0.5 MPa. As a proof of concept, based on elastomer films integrated with liquid metal alloy EGaIn (eutectic gallium–indium), stretchable electrodes and strain sensors were subsequently developed, opening the avenue to potential applications in flexible electronics and microsystems.
研究领域:
材料科学
·
聚合物化学
·
柔性电子
✓ 已验证
产品关联
DOI
高影响因子
Materials
·
2018
·Vol. 11
·期 11
·2279
·
IF 2.467
Yefeng Feng,Cheng Peng,Qihuang Deng,Yandong Li,Jianbing Hu,Qin Wu
High discharged energy density and charge–discharge efficiency, in combination with high electric breakdown strength, maximum electric displacement and low residual displacement, are very difficult to simultaneously achieve in single-component polymer dielectrics. Plenty of researches have reported polymer based composite dielectrics filled with inorganic fillers, through complex surface modification of inorganic fillers to improve interface compatibility. In this work, a novel strategy of introducing environmentally-friendly biological polyester into fluoropolymer matrix has been presented to prepare all-organic polymer composites with desirable high energy storage properties by solution cast process (followed by annealing or stretching post-treatment), in order to simplify the preparation steps and lower the cost. Fluoropolymer with substantial ferroelectric domains (contributing to high dielectric response) as matrix and poly (3-hydroxybutyrate-co-3-hydroxyvalerate) with excellent linear polarization property (resulting in high breakdown strength) as filler were employed. By high-temperature annealing, the size of ferroelectric domains could be improved and interfacial air defects could be removed, leading to elevated high energy storage density and efficiency in composite. By mono-directional stretching, the ferroelectric domains and polyester could be regularly oriented along stretching direction, resulting in desired high energy storage performances as well. Besides, linear dielectric components could contribute to high efficiency from their strong rigidity restrain effect on ferroelectric component. This work might open up the way for a facile fabrication of promising all-organic composite dielectric films with high energy storage properties.Keywords:annealing;stretching;energy storage;all-organic;composite
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Polymers
·
2025
·Vol. 17
·期 14
·1931
·
IF 4.9
Jincheng Gui,Xu Liu,Hao Dou
The increasing demand for light and comfort smart wearable devices has promoted the cross-integration of textile technology with nanomaterials and nanotechnology. As a potential candidate with excellent piezoelectricity, PVDF has been processed into different forms used for flexible sensors but shows limited practicality due to their discomfort and stiffness from non-yarn level. In this study, PVDF/BN nanofiber yarns (NFYs) were successfully fabricated via conjugated electrospinning. The effects of BN concentration, stretching temperature, and stretching ratio on the structural morphology and mechanical performance of the NFYs were systematically investigated. The results show that under the stretching temperature of 140 °C and stretching ratios of 3.5, smooth 1% PVDF/BN NFYs with highly oriented inner nanofibers can be successfully fabricated, and the breaking strength and elongation of composite NFYs reached 129.5 ± 8.1 MPa and 22.4 ± 3.8%, respectively, 667% higher than the breaking strength of pure PVDF nanoyarns. Hence, with the selection of appropriate nanofiller amounts and optimized post-treatment process, the structure and mechanical property of PVDF NFYs can be significantly improved, and this study provides an effective strategy to fabricate high-performance nanoyarns, which is favorable to potential applications in wearable electronic devices and flexible piezoelectric sensors.
研究领域:
材料科学
·
纳米技术
·
柔性电子学
·
聚合物纳米复合材料
·
智能纺织品
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Nuo Chen,Wen Wei,Nanying Ning,Hanguang Wu,Ming Tian
It remains a great challenge to fabricate all-polymer stretchable conductive fibers simultaneously presenting high mechanical robustness, high stretchability, and high conductivity through convenient and fast process, even though they exhibit great application potential in the intelligent wearable fields in replacement of the traditional metal wires or the liquid metal-based conductive fibers. In this paper, an all-polymeric fiber with core–shell structure is continuously produced through co-axial microfluidic spinning strategy. The composition of the fluids and the processing parameters of MST are regulated to adjust the size of the obtained PU@PEDOT:PSS fiber, and then optimizing its electric properties and the mechanical performances. The polyurethane (PU) elastic shell layer and the H 2 SO 4 -doped PEDOT:PSS conductive core provide the obtained composite fiber with a high conductivity exceeding 220 S m −1 , as well as an impressive stretchability up to above 400 % strain, thus endowing it with versatile intelligent wearable applications, including the super-sensitive strain sensor for human motions monitoring, textile-based triboelectric nanogenerator for self-powered impact sensing, and the electro-thermal conversion fabric for keep warming.
研究领域:
材料科学
·
纺织工程
·
可穿戴技术
·
微流控
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2024
·Vol. 14
·期 10
·866
·
IF 4.4
Guiming Liu,Zhao Huang,Jiujie Xu,Bowen Zhang,Tiesong Lin,Peng He
In the evolving landscape of portable electronics, there is a critical demand for components that meld stretchability with optical transparency, especially in supercapacitors. Traditional materials fall short in harmonizing conductivity, stretchability, transparency, and capacity. Although poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) stands out as an exemplary candidate, further performance enhancements are necessary to meet the demands of practical applications. This study presents an innovative and effective method for enhancing electrochemical properties by homogeneously incorporating Ru(III) into PEDOT:PSS. These Ru(III) PEDOT:PSS complexes are readily synthesized by dipping PEDOT:PSS films in RuCl3solution for no longer than one minute, leveraging the high specific capacitance of Ru(III) while minimizing interference with transmittance. The supercapacitor made with this Ru(III) PEDOT:PSS complex demonstrated an areal capacitance of 1.62 mF cm−2at a transmittance of 73.5%, which was 155% higher than that of the supercapacitor made with PEDOT:PSS under comparable transparency. Notably, the supercapacitor retained 87.8% of its initial capacitance even under 20% tensile strain across 20,000 cycles. This work presents a blueprint for developing stretchable and transparent supercapacitors, marking a significant stride toward next-generation wearable electronics.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）