JOURNAL OF POLYMER RESEARCH
·
2025
·Vol. 32
·期 8
·1-16
·
IF 2.8
Yang Rui,Zheng Guangli,Liu Sucheng,Yan Tong,Song Huiyu
The solid polymer electrolyte (SPE) is always a hot topic in both academia and industry but the ionic conductivity of SPE, such as polyurethane-type electrolytes, is generally low. In this article, we prepared a TPU-based polymer solid electrolyte by incorporating polyethylene oxide-grafted polysiloxane (PDMS-PEO), and characterized it through a series of characterization methods including FTIR, SEM, XRD, DSC and DMA, investigating the influence of PDMS-PEO on the structure and conventional properties of the SPE. Furthermore, electrochemical workstation and battery tester were utilized for relevant characterization of SPE. Experimental results demonstrated that the addition of 5wt% TPU-based polymer solid electrolyte exhibited an ion conductivity of 2.0 × 10 −4 S/cm at room temperature. Additionally, the pouch-type symmetric cell assembled with this electrolyte achieved a cycling time exceeding 800 h at room temperature while the ion transference number of this electrolyte also increased with addition of PDMS-PEO.
研究领域:
材料科学
·
高分子化学
·
电化学
·
固态电解质
·
储能技术
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2022
·Vol. 32
·期 34
·2204878
·
IF 19.924
Jinfeng Yuan,Yuzhong Zhang,Guozhen Li,Shiqiang Liu,Rong Zhu
Printable and stretchable conductive elastomers have promising applications for epidermal and wearable electronics, soft robotics, etc. However, these conductive materials usually present poor performances in monitoring dynamic strains. The monitored signals are distorted and lose key physical signs, which limit their practical applications. Through investigating kinetic behaviors of conductive pathways along longitudinal and transverse directions in these conductive materials, the physical mechanism of signal distortion under dynamic strains is interpreted. To overcome this strain sensing problem, an Ag-Ecoflex-polydimethylsiloxane (PDMS) elastomer by printing Ag-filler-Ecoflex-matrix ink on PDMS is proposed. Compared to other conductive materials, the Ag-Ecoflex-PDMS elastomer has preferable dynamic performances, embodying smaller overshoot response, higher strain sensitivity, and lower hysteresis. A deep-learning-based dynamic calibration method is proposed to successfully correct the sensing signals and eliminate the hysteresis error to 0.1%. Moreover, the proposed Ag-Ecoflex-PDMS elastomers gain high electrical conductivities owing to thermal expansion and contraction of PDMS substrate during the thermosetting of conductive ink, and thus can be both excellent stretchable sensors and stretchable conductors. Demonstrations of monitoring knee motion with high fidelity and human–robot collaborative playing ping-pong validate superior accuracy and robustness of the Ag-Ecoflex-PDMS elastomers for monitoring human dynamic activities, human-machine collaboration, virtual reality, etc.
研究领域:
穿戴式电子
·
软体机器人
·
柔性传感器
·
材料科学
·
人机交互
✓ 已验证
DOI
高影响因子
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
·
2014
·Vol. 52
·期 22
·3205-3212
·
IF 3.245
Zhixian Xu,Suyun Jie,Bo-Geng Li
Well-defined diblock copolymers of linear polyethylene (PE) and poly(dimethylsiloxane) (PDMS) have been synthesized through a facile route combining the thiol-ene click chemistry of vinyl-terminated polyethylene (PE-ene) and the sequential esterification reaction. The resulting diblock copolymers are characterized by 1 H NMR, FT-IR, DSC, TGA, and TEM. In addition, the PE- b -PDMS diblock copolymers have been evaluated as compatibilizers in the blends of high-density polyethylene (HDPE) and silicone oil. The morphological analysis and mechanical properties demonstrate that the compatibilized blends with low loading concentration of PE- b -PDMS display significant improvements in modulus of elasticity and elongation at break as compared to the uncompatibilized binary blends. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014 , 52 , 3205–3212
研究领域:
高分子化学
·
材料科学
✓ 已验证
DOI
高影响因子
NANOTECHNOLOGY
·
2021
·Vol. 32
·期 29
·295507
·
IF 3.874
Ziyu Han,Jiantao Liu,Zhanning Liu,Wenwei Pan,Yang Yang,Xuejiao Chen,Yunhua Gao,Xuexin Duan
This paper reports an IC-compatible method for fabricating a PDMS-based resistive pulse sensing (RPS) device with embedded nanochannel (nanochannel-RPS) for label-free analysis of biomolecules and bionanoparticles, such as plasmid DNAs and exosomes. Here, a multilayer lithography process was proposed to fabricate the PDMS mold for the microfluidic device, comprising a bridging nanochannel, as the sensing gate. RPS was performed by placing the sensing and excitation electrodes symmetrically upstream and downstream of the sensing gate. In order to reduce the noise level, a reference electrode was designed and placed beside the excitation electrode. To demonstrate the feasibility of the proposed nanochannel-RPS device and sensing system, polystyrene micro- and nanoparticles with diameters of 1 μm and 300 nm were tested by the proposed device with signal-to-noise ratios (SNR) ranging from 9.1–30.5 and 2.2–5.9, respectively. Furthermore, a nanochannel with height of 300 nm was applied for 4 kb plasmid DNA detection, implying the potential of the proposed method for label-free quantification of nanoscale biomolecules. Moreover, HeLa cell exosomes, known as a well-studied subtype of extracellular vesicles, were measured and analyzed by their size distribution. The result of the resistive pulse amplitude corresponded well to that of nanoparticle tracking analysis (NTA). The proposed nanochannel-RPS device and the sensing strategy are not only capable of label-free analysis for nanoscale biomolecules and bionanoparticles, but are also cost-effective for large-scale manufacturing.
研究领域:
微流控技术
·
纳米技术
·
生物医学工程
·
生物分子分析
✓ 已验证
DOI
高影响因子
OPTICS EXPRESS
·
2023
·Vol. 31
·期 13
·21212-21224
·
IF 3.8
Zhuo Ren,Chunlan Liu,Yong Wei,Chunbiao Liu,Chen Shi,Xingkai Wang,Yixiong Tang,Rui Wang,Zhihai Liu
The Fiber SPR chip laboratory has become a popular choice in biochemical detection. To meet the needs of different kinds of analytes for the detection range and number of channels of the chip, we proposed a multi-mode SPR chip laboratory based on microstructure fiber in this paper. The chip laboratory was integrated with microfluidic devices made from PDMS and detection units made of bias three-core fiber and dumbbell fiber. By injecting light into different cores of a bias three-core fiber, different detection areas of dumbbell fiber can be selected, enabling the chip laboratory to enter high refractive index detection, multi-channel detection and other working modes. In the high refractive index detection mode, the chip can detect liquid samples with a refractive index range of 1.571-1.595. In multi-channel detection mode, the chip can achieve dual parameter detection of glucose and GHK-Cu, with sensitivities of 4.16 nm/(mg/mL) and 9.729 nm/(mg/mL), respectively. Additionally, the chip can switch to temperature compensation mode. The proposed multi working mode SPR chip laboratory, based on micro structured fiber, offers a new approach for the development of portable testing equipment that can detect multiple analytes and meet multiple requirements.
研究领域:
生物化学检测
·
光学传感
·
微流控技术
·
生物医学工程
✓ 已验证
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Xingran Kou,Yuxin Yang,Xin Huang,Qingran Meng,Yunchong Zhang,Qinfei Ke
The nanocellulose-stabilized aroma emulsions have the potential to replace surfactant-stabilized emulsions. However, the stability of aroma emulsions stabilized by nanocellulose still remains a challenging task. Herein, we developed a stable nanocellulose-stabilized aroma emulsion with controllable and antibacterial properties through cellulose nanocrystal (CNC) and NH 2 -PDMS-NH 2 self-assembly at the oil-water interface. The stability, interfacial behavior, rheological and antibacterial properties of the emulsion were investigated. Our results reveal that the creaming index of the emulsions remained almost unchanged even after being stored for one week. The interfacial tension between the CNC aqueous phase and limonene decreased from 20.5 to 8.5 mN/m, as the addition of NH 2 -PDMS-NH 2 (20 mg/mL). Notably, the interface tension (ranging from 3.5 to 11.1 mN/m) and the interfacial coverage rate of the CNC at the oil/water interface (ranging from 68.6 % to 97.5 %) could be tune by adjusting the pH value of the aqueous phase. The storage modulus and viscosity of the emulsions increased as the concentration of NH 2 -PDMS-NH 2 increased. The aroma emulsion was highly stable under the conditions of 1.5 wt% CNC, 10 mg/mL NH 2 -PDMS-NH 2 , the oil/water ratio of 1/9, and the aqueous phase pH of 3. Moreover, these emulsions exhibited significant resistance to Escherichia coli and Staphylococcus aureus . Overall, this research provides a method to prepare a stable nanocellulose-based aroma emulsion, which could extend the application area of aroma emulsion.
研究领域:
材料科学
·
化学工程
·
食品科学
·
纳米技术
·
生物技术
✓ 已验证
DOI
高影响因子
Nanomaterials
·
2024
·Vol. 14
·期 6
·542
·
IF 4.4
Rui Guo,Weipeng Shi,Rui Guo,Chenyu Yang,Yi Chen,Yonghua Wang,Danfeng Cui,Dan Liu,Chenyang Xue
Flexible thermoelectric generators (FTEGs), which can overcome the energy supply limitations of wearable devices, have received considerable attention. However, the use of toxic Te-based materials and fracture-prone electrodes constrains the application of FTEGs. In this study, a novel Ag2Se and Poly (3,4-ethylene dioxythiophene): poly (styrene sulfonate) (PEDOT:PSS)/multi-walled carbon nanotube (MWCNT) FTEG with a high output performance and good flexibility is developed. The thermoelectric columns formulated in the work are environmentally friendly and reliable. The key enabler of this work is the use of embedded EGaIn electrodes, which increase the temperature difference collected by the thermoelectric column, thereby improving the FTEG output performance. Additionally, the embedded EGaIn electrodes could be directly printed on polydimethylsiloxane (PDMS) molds without wax paper, which simplifies the preparation process of FTEGs and enhances the fabrication efficiency. The FTEG with embedded electrodes exhibits the highest output power density of 25.83 μW/cm2and the highest output power of 10.95 μW at ΔT= 15 K. The latter is 31.6% higher than that of silver-based FTEGs and 2.5% higher than that of covered EGaIn-based FTEGs. Moreover, the prepared FTEG has an excellent flexibility (>1500 bends) and output power stability (>30 days). At high humidity and high temperature, the prepared FTEG maintains good performance. These results demonstrate that the prepared FTEGs can be used as a stable and environmentally friendly energy supply for wearable devices.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Jing Sun,Yalei Mei,Weiliang Bai,Li Han,Yuqiang Li,Yuzhong Gao,Ming-Fei Lang,Hongsheng Xue
Flexible sheet reference electrodes play a crucial role in both flexible electrochemical biosensors and electrophysiological monitoring. Enhancing electrode stability and extending continuous operational lifespan are key issues in the research of flexible sheet reference electrodes. In this study, a novel flexible Ag/AgCl sheet reference electrode was fabricated by semi-embedding nano-silver dendrites within a polydimethylsiloxane (PDMS) matrix. The flexible Dendritic Ag/AgCl quasi-reference electrodes showed comparable stability of open circuit potential to commercial glass reference electrodes, with a single continuous stable operation time exceeding 12 h and sustained stable operation for at least 30 days when operated continuously for 1 h per day. Additionally, the shelf life was significantly extended to at least 1 year. An in-depth exploration of its mechanism reveals that the embedding strategy plays a crucial role. It strengthens the tight connections between silver dendrites, forming a robust and stable conductive network that ensures rapid and stable charge transfer. Furthermore, the strong adhesion between silver dendrites and PDMS greatly enhances its mechanical durability. This electrode exhibits high practical value in electrophysiological monitoring such as electroencephalogram and electrocardiogram, as well as in flexible sensor applications for H 2 O 2 sensing in pleural effusions, opening new pathways for advancements in flexible wearable devices and biomedical sensor technologies.
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Ziyang Bian,Lili Huang,Zetong Li,Jie Wang,Yue Wang,Zhenshan Yang,Hefu Li
The development of versatile surface-enhanced Raman scattering (SERS) platforms facilitates the rapid identification of contaminants in diverse application scenarios. Herein, a dual-functional SERS substrate comprising silver nanoislands-decorated micropillar/wrinkle hierarchical structure (Ag NIs@PWHS) on a polydimethylsiloxane (PDMS) film was fabricated through an amalgamation of fabrication techniques: soft lithography, surface wrinkling, and magnetron sputtering. The PDMS hierarchical architecture was constructed by replicating mastoid structures of lotus leaves through a two-step molding process, followed by the formation of periodic wrinkles via oxygen plasma treatment. This hierarchical design integrating micropillars and wrinkles not only provided a multiscale surface architecture conducive to the formation of three-dimensional (3D) hot spots, but also conferred hydrophobicity and bending insensitivity on the SERS substrate. The optimal Ag NIs@PWHS substrate had an analytical enhancement factor of 1.99 × 10 6 , outstanding signal uniformity (relative standard deviation, RSD = 2.98 %) and reproducibility (RSD = 4.54 %), and robust mechanical stability. Furthermore, the Ag NIs@PWHS substrate enabled the rapid detection of thiram on pear surface and malachite green in lake water, with a detection sensitivity of 10 −7 M for both pesticides. Thus, the developed Ag NIs@PWHS SERS substrate holds significant potential for utilization in realms of food safety assessments and water pollution surveillance.
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Energy
·
2024
·
IF 9
Xiao-Jie Kang,Hui Zhang,Cheng-Yu He,Bao-Hua Liu,Yong-Zhi Zhang,Xiang-Hu Gao
Polymer-based materials emerge as promising building blocks for passive daytime radiative cooling (PDRC) due to their affordability and ease of production. Enhancing these polymers with inorganic particle doping has shown to boost their mechanical properties and light scattering ability, a result of the increased refractive index contrast with air. However, the incorporation of a single type of inorganic particle often falls short in optimizing overall performance. Herein, we introduce a novel approach by simultaneously integrating high refractive index zirconium dioxide (ZrO 2 ) and wide band gap silicon dioxide (SiO 2 ) dielectric particles into polydimethylsiloxane (PDMS) matrix. This dual-particle strategy synergistically improves the radiative cooling capabilities of the resulting photonic film. Remarkably, with a thickness of 1,000 μm, it achieves an impressive 96.7% reflection of solar irradiance , while maintaining a high emissivity of 95.2% in the atmospheric window . Under solar intensity of ∼836.7 W/m 2 , it delivers an average cooling power of 82.42 W/m 2 , achieving a substantial sub-ambient temperature drop of up to 8.26 °C. We further explored its effectiveness in enhancing freshwater collection efficiency, leveraging its radiative cooling properties. Furthermore, the photonic film also exhibits versatile properties including flexibility, hydrophobicity , thermal stability, color scalability, and weather resistance, thus enhancing its suitability for various practical applications.
研究领域:
材料科学
·
光学
·
纳米技术
·
高分子科学
·
热能工程
·
光子学
·
能源效率
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Tianxue Zhu,Yan Cheng,Jianying Huang,Jiaqing Xiong,Mingzheng Ge,Jiajun Mao,Zekun Liu,Xiuli Dong,Zhong Chen,Yuekun Lai
Transparent and conformal superhydrophobic coating with mechanochemical robustness is of great importance for various applications, such as waterproof, self-cleaning, and anti-icing for windows of cars and buildings. However, it remains a daunting challenge to endow the functional surface with programmable wettability. Herein, we propose a hierarchical coating consisting of polydimethylsiloxane (PDMS) nanoparticles (NPs) and PDMS microparticles (MPs) functional NPs through a combination of thermal treatment and spray treatment. The evaporation of PDMS under heat treatment is firstly applied to form a uniform nanoarchitectures, followed by spraying a mixed P25-PDMS dispersion to construct a protective coating with enhanced surface roughness. This resulted coating is conformal and possess reversible wettability on various substrates. In virtue of the light-response property of P25, the reversible wettability between superhydrophobicity and hydrophobicity can be achieved by repetitive UV-light irradiation and dark environment storage. Besides, the coating can maintain superhydrophobicity with high transmittance (76% optical transmittance) after immersion in acid/base solution for 24 h and continuously sand impingement. Furthermore, the coating exhibits mechanochemical robustness against high speed water jet and Elcometer 99 tape peeling test for 30 cycles due to the high adhesion between the robust coating and the glass. For practical application, the coating was demonstrated to have excellent performance in anti-icing, photocatalytic degradation of pollutants and self-cleaning.
研究领域:
材料科学
·
表面工程
·
涂层技术
·
环境科学
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY
·
2023
·
IF 4.6
Xu Xu,Xiang Li,Guibin Liu,Xixi Wei,Daming Feng,Lei Zhang
In recent years, efficient oil–water separation has gradually become an indispensable part of environmental treatment. Superhydrophobic/superoleophilic materials with excellent self-cleaning performance are urgently required and remain challenging in the investigation of practical, rapid, and efficient separation of oil–water mixture and emulsion, especially those with robust surfaces that can be used in harsh conditions. In this work, a novel superhydrophobic/superoleophilic material was first fabricated by in situ constructing PDMS@ZIF-7/Cu3(PO4)2 hierarchical architectures on a copper mesh, which was adopted as a high flux and efficient separation material for gravity-driven separation of oil–water mixture as well as emulsion. The introduction of crucial Cu3(PO4)2 nanosheet interlayers created the ideal hierarchical structures and serve as partial templates for the subsequent in situ growth of hydrophobic ZIF-7 nanosheets. An improved superhydrophobicity (CA = 155°), permeation flux (102,000 L m–2 h–1), and preferred self-cleaning property were thus achieved by such manipulation of the copper mesh. The PDMS@ZIF-7/Cu3(PO4)2 mesh exhibited exceptional separation efficiency for diverse oil–water mixtures and emulsions attributed to the superhydrophobicity and the demulsification ability and considerable stability to cope with extreme environments including sunlight resistance, low temperature, and corrosion resistance, which prompted its promising applicability in cleaning emulsified wastewater.
✓ 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）