ChemElectroChem
·
2020
·Vol. 7
·期 21
·4492-4500
·
IF 4.154
Changqing Zhu,Jingxi Zhang,Xinyu Zeng,Jing Xu,Luoxin Wang,Zi-Chen Li
Graphical Separator architecture : A new composite separator was successfully fabricated by constructing semi-interpenetrating polymer network (SIPN) on polyphenylene sulfide nonwoven substrate. Due to the introduction of SIPN in this system, the composite separator exhibited enhanced mechanical strength, broader electrochemical window, and excellent cycling performance. High power lithium-ion battery (LIB) puts forward higher requirements for separator. In this study, a new composite separator (SIPN/PPS) with superior stability and improved electrochemical performance was fabricated by the construction of semi-interpenetrating polymer network (SIPN) on polyphenylene sulfide (PPS) nonwoven substrate. In SIPN, branched polyethyleneimine (PEI) was selected as crosslinking points due to multiple reactive terminal groups −NH 2 . Meanwhile, PEI owned irregular topology structure, which would be beneficial to interrupt the crystallization of polymer matrix and increase electrolyte storage by swelling. Characterization results show that this designed composite separator can exhibit higher porosity, improved electrolyte wettability, enhanced electrolyte uptake and excellent electrochemical performance, thus endowing battery with superior discharge capacity even at 3 C. In addition, the introduction of SIPN is confirmed to increase mechanical strength more obviously than that of single cross-linked network reported in previous study. Meanwhile, anode current begins to be detected for SIPN/PPS composite separator under higher applied voltage (4.6 V vs Li + /Li), indicating its broader electrochemical window. Moreover, SIPN/PPS composite separator is displayed satisfactory cycling stability with higher discharge capacity retention ratio (85.3 %). Consequently, this contribution opens a new avenue for separator applied in high power LIB.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
FIBERS AND POLYMERS
·
2024
·
IF 2.2
Sun Yining,Sun Hui,Yu Bin,Yang Xiaodong,Xu Tao
Polypropylene melt-blown nonwoven material (PP MB) was first modified by polydopamine to improve the surface hydrophilicity. Then cobalt hydroxycarbonate Co(CO 3 ) 0.5 (OH)∙0.11H 2 O(CCO) was synthesized on the surface of the modified PP MB(M-PP MB) via a simple in suit hydrothermal method, and CCO@M-PP MB was obtained. The results showed that when the ratio of Co(NO 3 ) 2 ·6H 2 O to CO(NH 2 ) 2 was 1:5 and the Co(NO 3 ) 2 ·6H 2 O concentration was 0.03 mol/L, CCO with a sea urchin-like morphology appeared on the surface of M-PP MB. Compared with PP MB, the water contact angle (WCA) of CCO@M-PP MB reduced to 0°. When n-hexane was used as the oil phase, the underwater oil contact angle (UWOCA) of CCO@M-PP MB could be over 140.63°. CCO@M-PP MB could efficiently separate various oil–water mixtures, the oil included n-hexane, petroleum ether, carbon tetrachloride, dichloromethane, peanut oil, and olive oil. When n-hexane was used as the oil phase, the oil–water separation efficiency of CCO@M-PP MB was over 98.76%. Throughout 50 cycles, the oil–water separation efficiency of CCO@M-PP MB was never lower than 97.02%.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2022
·Vol. 139
·期 26
·e52453
·
IF 3.057
Qingtao Zeng,Dehui Lai,Piming Ma,Xuejun Lai,Xingrong Zeng,Hongqiang Li
In recent years, piezoresistive pressure sensors with superhydrophobicity have aroused considerable attention. In addition, to comply with “sustainable development” strategy, the sensors fabricated with eco-friendly materials is of great theoretical and practical significance. Herein, tannic acid (TA) was first absorbed on the surface of poly(lactic acid) (PLA) nonwoven fabric by simple dipping method. After that, silver (Ag) particles were in situ generated on the surface to construct roughness with the reduction role of TA by immersing the fabric into silver nitrate aqueous solution. Finally, n-lauryl mercaptan was grafted on the Ag particles via Ag–S bonds to provide low surface energy, and a conductive and superhydrophobic PLA (CSPLA) nonwoven fabric was fabricated. The obtained CSPLA nonwoven fabric had a high water contact angle of 150.3°. The fabric-based piezoresistive pressure sensor possessed high sensitivity, fast response, good stability, and excellent reusability, and was successfully applied for detecting various human motions including voice recognition, joint bending, stomping, walking, and jumping. The fabricated sensor has great application potential in the fields of touchable displays, electronic skins, intelligent robotics, and wearable devices.
研究领域:
材料科学
·
传感器技术
·
可持续发展
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Yuanqiang Xu,Xiaomin Zhang,Xibo Hao,Defang Teng,Tienan Zhao,Yongchun Zeng
The COVID-19 pandemic and airborne particulate matter (PM) pollution have posed a great threat to human health. Personal protective face masks have become an indispensable protective equipment in our daily lives. However, wearing conventional face masks for a long time cause swelter and discomfort on the face. Introducing thermal comfort into personal protective face masks becomes desirable. Herein, face masks that show excellent filtration performance and radiative heat dissipation effect are successfully designed and prepared by electrospining Nylon-6 (PA) nanofibers onto polyethylene (PE) meltblown nonwovens. The resultant PE/PA nonwovens have high PM filtration efficiency (>99%) with a low pressure drop (<100 Pa). Moreover, taking the advantage of the property of PE, the designed face mask posses high mid-infrared (mid-IR) transmittance and brings about high radiative cooling power, resulting in effective heat dissipation performance. This face mask design may provides new insights into the development of thermal comfort materials for personal protection.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FIBERS AND POLYMERS
·
2022
·Vol. 23
·期 6
·1595-1601
·
IF 2.347
Cui Yifan,Jiang Zhe,Zhou Yu,Wang Qiang,Zhou Man,Wang Ping,Yu Yuanyuan
Conductive polyester non-woven fabric was prepared using horseradish peroxidase (HRP) catalytic agent, 3,4-ethylenedioxythiophene monomer and poly(p-styrenesulfonic acid) dopant. The electrical resistance of the prepared conductive polyester non-woven fabric was reduced to 1.3×10 4 Ω from 10 14 Ω of the raw polyester non-woven fabric because of the addition of poly(3,4-ethylenedioxythiophene) the conductivity of conductive polyester non-woven fabric decreased by about 60 % after 300 bending cycles. Notably, the temperature of the conductive polyester non-woven fabric increased by 73.1 °C after 150 s of light irradiation from a lamp source, while that of the raw polyester non-woven fabric increased by only 19.4 °C under the same conditions.
研究领域:
材料科学
·
生物化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2021
·Vol. 138
·期 40
·51169
·
IF 3.125
Xianglong Li,Jing Liu,Yishen Lu,Teng Hou,Jing Zhou,Antuo Wang,Xianggui Zhang,Bin Yang
We developed a new environmentally-friendly disposable nonwoven based on centrifugally spun ST/PVA ultrafine fibrous membrane in this research. The effects of ST/PVA ratio as well as formic acid post-treatment on thermal properties, tensile strength, and disposability of fibrous membranes were studied. To observe the morphology and chemical structures changing of fibers during fabrication and post-treatment, the obtained fibers were characterized by scanning electron microscopy, x-ray diffraction, and Fourier transform infrared spectroscopy. The fibrous membranes with uniform fiber diameters and excellent disposability properties were formed. The ST/PVA ratio of fibers was optimized according to the disposability and tensile strength of the fibrous membranes. Disintegration of untreated and post-treatment fibrous membrane with ST/PVA ratio of 3/1 was over 80% and 40%, respectively, and the tensile strength was improved over two times comparing with pure starch fibrous membrane.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2024
·Vol. 14
·期 8
·5627-5637
·
IF 3.9
Xiangxiang Zhu,Hui Sun,Bin Yu,Lei Xu,Hao Xiao,Zhuan Fu,Tian Gao,Xiaodong Yang
To fabricate a two-electrode flexible pH sensor based on polypropylene spunbonded nonwoven fabric (PP SF), oily polyurethane (OPU) was first coated on the surface of PP SF to obtain OPU/PP SF. Then, silver/silver chloride (Ag/AgCl) paste, used as the reference electrode and conductive carbon (C) paste were transferred to the OPU/PP SF surface through screen printing. Polyaniline (PANI) was deposited on the surface of the C paste to form a sensing working electrode via the electro-chemical deposition method. The results showed that the surface of the obtained PANI@OPU/PP SF flexible pH sensor (3D PANI pH sensor) presented a three-dimensional (3D) porous network structure. The 3D PANI pH sensor had good mechanical properties, an excellent Nernst response (−67.67 mV pH−1) and linearity (R2 = 0.99) in the pH range from 2.00 to 8.00 in the normal state. In the bent state, the 3D PANI pH sensor retained similar sensitivity (−68.87 mV pH−1) and linearity (R2 = 0.99). Moreover, the 3D PANI pH sensor exhibited a short response time (8 s), excellent reversibility (1.20 mV), low temperature drift (−0.0872 mV pH−1 °C−1) and long-term stability (0.83 mV h−1) in the normal state. Furthermore, the 3D PANI pH sensor can be effectively applied for pH monitoring of liquids and fruits with irregular curved surfaces. The error margin is no more than 0.16 compared to a commercial pH meter.
研究领域:
材料科学
·
传感器技术
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Tianwu Hu,Lifan Zeng,Yaqin Li,Yajing Wu,Zece Zhu,Yanbo Zhang,Di Tian,Chao Gao,Wei Li
A novel terylene carbon dots (TCDs) were successfully synthesized by a one-step solvothermal method, and further modified onto chitosan non-woven fabrics (CNF) for selective detection and effective removal of Cr(VI). Compared with TCDs, chitosan non-woven fabrics modified by carbon dots (CNF-TCDs3) exhibited higher selectivity and lower detection limit for Cr(VI) (The limit of detection (LOD) is 0.15 mg/L). In addition, CNF-TCDs3 showed a rapid and effective removal of Cr(VI), and still maintain a high relative removal rate (above 92%) after five times recirculation. The adsorption equilibrium could be reached in only 8 min, and the maximum adsorption capacity was 203 mg/g. The adsorption process conformed to the Langmuir model, and the fitting correlation is R 2 = 0.99. The fluorescence response and efficient adsorption mechanisms of the CNF-TCDs3 toward Cr(VI) were mainly attributed to the internal filtering effect and the amino and hydroxyl groups in chitosan. Significantly, this functionalized fabrics CNF-TCDs3 were successfully applied to semi-quantitatively detect on a smartphone-integrated-device and efficiently remove Cr(VI) in real samples.
研究领域:
环境科学
·
材料科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS A-PHYSICAL
·
2019
·
IF 2.739
Md Mehedi Hasan,Feichao Zhu,Arsalan Ahmed,Nazakat Ali Khoso,Hridam Deb,Lai Yuchao,Md Zahidul Islam,Hui Sun,Bin Yu
Melt blown-Nonwoven Polypropylene based materials have numerous applications, such as nonwoven fabrics, filtration membranes used in clothing and potential industrial use due to its higher breathability, durability, absorbency, and filtration properties. Nonwoven PP-fabrics are very often used to develop wearable articles such as garments. In this research melt blown-nonwoven polypropylene (NW-PP) membranes were functionalized using (O 2 ) cold plasma for the conversion of highly hydrophobic into hydrophilic nature to enhance the absorption and adhesion of graphene films on the fiber surface. The graphene oxide (GO) and NW membrane was successfully introduced on the fibrous mat and reduced into reduced Graphene oxide (rGO) with green chemical and thermal reduction. L-Ascorbic Acid was used as a reducing agent at a low-temperature microwave-assisted reduction at 90 °C. The as developed NW membrane was connected two copper electrodes and used as wearable pressure (WP) sensors. The physical sensor responds with different stretching and bending cycles under dynamic pressure of loading and unloading. The sensitivity of the developed pressure sensor was 0.050 kPa −1 in a wide pressure range (0–60 kPa). The resultant rGO coated NW-PP wearable pressure sensor (RNPWP) is capable of responding to human body movement and motion. The study demonstrates that mass production on an industrial scale graphene-based conductive nonwoven PP fabric potentially replaces the metal-based conductive wearable textiles for physical sensors.
研究领域:
材料科学
·
纺织工程
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2024
·
IF 5.7
Jing Ye,Yuanyuan Zheng,Xiangyu Li,Xingyi Jiang,Di Chen
Background The detection of tyrosine kinase inhibitors (TKIs) in biological fluids is essential due to their critical role in cancer therapy and the variability in individual drug metabolism, which necessitates precise dosing. Traditional methods for analyzing TKIs in biological fluids, such as blood plasma, typically involve complex sample preparation techniques that can be resource-intensive, environmentally burdensome, and not sufficiently sensitive for low-concentration analytes. There is a pressing need for more efficient, economical, and environmentally friendly methods that can enhance sensitivity and throughput without compromising accuracy. Results This study explores the use of melt-blown polypropylene nonwoven (MBPP), commonly found in face masks, as a novel sorbent for pipette-tip micro-solid phase extraction (PT-μSPE). MBPP demonstrated excellent hydrophobicity and significant mesoporous adsorption capacity. An extraction device was fashioned by inserting a segment of MBPP (15 mg) into a 200 μL disposable plastic pipette tip, which was then attached to a 2.5 mL disposable plastic syringe. The MBPP's fabric form removes the need for a frit, allowing the extraction process to be completed in just 3 min through simple plunger manipulation. The method achieved extraction recoveries ranging from 60.5 % to nearly 100 %. Subsequent method validation using liquid chromatography-tandem mass spectrometry (LC-MS/MS) showed satisfactory linearity (coefficient of determination R 2 > 0.993), accuracy (relative recoveries: 86.3%–114.8 %), and precision (relative standard deviation: 3.4%–11.3 %), with detection limits between 0.022 and 0.135 ng mL −1 . Significance The introduction of MBPP for PT-μSPE represents a significant advancement in the bioanalytical detection of TKIs, offering a highly efficient, cost-effective, and environmentally sustainable method. It compares favorably with existing techniques, offering advantages in terms of cost, environmental impact, and ease of use. This approach has the potential to be widely adopted for routine monitoring of TKIs in clinical settings.
研究领域:
分析化学
·
药物分析
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials Chemistry Frontiers
·
2025
·
IF 6.4
Junmei Li,Zhixuan Duan,Yinan Fan,Ruigan Zhang,Demao Ban,Zhaolin Liu,Lifang Liu
Protecting people's public safety has been the focus of long-term attention. Improving the comprehensive properties of matrix materials is of great significance for chemical protection, but there is still a gap in research in this field. In this paper, a covalent organic framework (COF) is constructed using Benzene-1,3,5-tricarbaldehyde (TFB) and 2,3'-dimethyl-[1,1'-biphenyl] (BD(Me)2) as building units, and the TFB- BD(Me)2 COF was synthesized in Nomex nonwovens (NW) by room temperature-assisted conversion method. Based on the chemical protection mechanism, the prepared composite fabrics have unique acid-base, high hydrophobic properties, and excellent chemical stability. At the same time, composite fabrics with good thermal stability, flame retardancy, and strength have achieved chemical protection in multiple scenarios. Overall, the simple and efficient preparation method makes composite fabrics competitive in chemical protective materials. At the same time, the use of COF as a reinforcing material effectively broadens the application of COF in chemical protection and lays a foundation for the exploration of COF in other fields.
研究领域:
材料科学
·
化学工程
·
纳米技术
·
高分子科学
·
安全工程
✓ 已验证
产品关联
DOI
高影响因子
Coatings
·
2022
·Vol. 12
·期 11
·1756
·
IF 3.236
Qingwei Liao,Wei Hou,Jingxin Zhang,Lei Qin
Silver nanowires (AgNWs), as conductive materials for flexible stretchable electrodes, do not only have high conductivity but also have a high specific surface area, excellent stretchability, and mechanical stability, showing great potential applications in flexible electronics such as foldable, stretchable electrodes and wearable devices, etc. This work successfully synthesized AgNWs with controllable morphology by an improved dual-alcohol process. The diameter, length, and size uniformity of AgNWs were effectively regulated by studying the reaction temperature, different control agents, and the dropping rate of the AgNO3solution. The flexible stretchable electrodes were prepared using PDMS, paper, and nonwoven fabrics as substrate materials, and the impregnation method prepared the flexible stretchable electrodes of conductive fabrics. The properties of flexible stretchable electrodes of AgNWs based on different substrates were compared.Keywords:flexible stretchable electrode;silver nanowires;conductive fabric
研究领域:
材料科学
·
纳米技术
·
柔性电子
·
可穿戴设备
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）