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SSRN 2023年

作者： Shi, Qingwen Liang, Jinxing Wang, Xuyi Yao, Kaixiang Tang, Yidan Pan, Chen Sun, Jiuxiao Liu, Rui Tan, Haiying Tang, Tao State Key Laboratory of New Textile Materials and Advanced Processing Technologies Key Laboratory of Textile Fiber and Products of Ministry of Education College of Materials Science and Engineering Wuhan Textile University Wuhan430200 China School of Computer Science and Artificial Intelligence Wuhan Textile University Wuhan430200 China High-Tech Organic Fibers Key Laboratory of Sichuan Province and China Bluestar Chengrand Co. Ltd China State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun130022 China

Fire detection plays a crucial role in maintaining the safety of people's lives and property. However, most early fire detectors are designed to monitor the current or voltage changes of the sensing materials, which require external power supplies. It is still a challenge to make rapid and accurate noncontact early fire detection in precombustion due to the lack of reliable alarm signals. Herein, inspired by the discoloration of chameleon skin, we developed an early fire warning sensor (EFWS) by coating photonic crystals (PCs) on a plastic sheet with thermal expansion properties. Monodispersed zinc sulfide (ZnS) was coated on the plastic sheet as abnormal detection component for EFWS. Combined with the intelligent image recognition algorithm, the EFWS was designed and gave warnings for 0.9s at 260 °C. For the first time, a non-contact real-time monitoring strategy based on PCs EFWS in precombustion is developed. The sensing material can be directly pasted on the surface of the detected equipment, and combined with existing surveillance cameras in the detection area, early warning of fires can be achieved without additional equipment. The EFWS system can be used in fire alarms for aircraft, buildings, electrical appliances, substations, and other places in the future. © 2023, The Authors. All rights reserved.

关键词： Zinc sulfide

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Novel Membranes Regenerated from Blends of Cellulose/Gluten Using Ethylenediamine/Potassium Thiocyanate Solvent System

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Journal of Renewable Materials 2019年第1期7卷 41-55页

作者： Yang Yu Ramiz Boy Richard Kotek Fiber and Polymer Science Program College of TextilesNorth Carolina State UniversityRaleighNC 27606USA Department Textile Engineering Çorlu Faculty of EngineeringTekirdağNamık Kemal UniversityTekirdağ59860TURKEY

Current industrial methods for dissolution of cellulose in making regenerated cellulose products are relatively expensive,toxic and dangerous and have environmental problems coming with the hazard chemical *** solve these problems,a novel ethylenediamine and potassium thiocyanate(ED/KSCN)solvent system was developed,that is economical,ecofriendly,and highly *** ED/KSCN solvent system was proven to be a suitable solvent for fabricating cellulose(blended with other polymers)*** this study,gluten was used to develop nonporous membranes with *** method of casting these membranes provided better ones than the former researchers’*** composite membranes’physical and mechanical properties were studied by analysis of morphology,viscosity,crystallinity,thermal behaviors,tensile properties and water absorption of *** showed that membranes are nonporous,uniform,strong,flexible,ecofriendly and *** and physical properties were influenced by the ratio of cellulose/*** blending 40% gluten,the tensile strength of cellulose membrane dropped to 15.89 MPa from 35.11 ***,its elongation at break increased from 35.3% to 57.02% accordingly.

关键词： Cellulose gluten blended film novel ED/KSCN solvent physical and mechanical properties

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Solvent Composition Effect on PDMS Composite Dielectric Elastomer Actuator

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Materials sciences and Applications 2021年第11期12卷 504-518页

作者： Satoshi Tamura Ryotaro Kiyono Toshihiro Hirai Graduate School of Medicine Science and Technology Shinshu University Nagano Japan Shin-Etsu Polymer Co. Ltd. Tokyo Japan Faculty of Engineering Shinshu University Nagano Japan Fiber Innovation Incubator Faculty of Textile Science and Technology Shinshu University Ueda Japan

Polydimethylsiloxane (PDMS) is inactive to electric fields, but when combined with ferroelectric cyanoethyl sucrose (CR-U), it becomes an electrically active actuator material. The PDMS/CR-U composites were prepared by casting method using tetrahydrofuran (THF) and acetone (ACT) as solvents. The effect of a mixed solvent composition was investigated. The viscosity of the PDMS/CR-U/solvent solution decreased as the THF composition increased. The composite film obtained by evaporation of the solvent and cross-linkage of PDMS showed a phase-separated structure. Spherical CR-U dispersed in the PDMS matrix with a skin layer on one surface side. Electrical resistance, dielectric constant, space-charge distribution, and electrically induced bending deformation behavior were investigated for these composite films. The composite films prepared from a THF-rich solvent exhibited lower surface resistivity than those prepared from a THF-poor solvent. Applying an electric field to the composite film resulted in an asymmetric space-charge distribution with charge accumulation in the skin layer. THF content decreased the viscosity of the solution, meaning the decrease of the apparent size of PDMS chain aggregates. It allows the dispersion of CR-U in the PDMS matrix and also results in the decline of resistivity, the increase of permittivity, and the increase of charge injection. The results explained the structure formation of the composite film and the electric field response as an actuator. A casting solvent of THF content of 87.5 wt% or more is essential for the function of the PDMS/CR-U composite.

关键词： Dielectric Actuator Polydimethylsiloxane Composite Solvent Composition Morphology Charge Accumulation

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Nise Layer Enhanced the Efficiency of Hole-Conductor-Free MAPbI3 Perovskite Solar Cells

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SSRN 2024年

作者： Li, Yanyan Lu, Xiaohui Wu, Congcong Wang, Shiming Yang, Xiaojie Li, Yang Zhao, Li Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials Hubei Key Laboratory of Polymer Materials Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Hubei University Wuhan430062 China Key Laboratory of Textile Fiber and Products Ministry of Education Wuhan Textile University Wuhan430200 China School of Nuclear Technology and Chemistry & Biology Hubei Key Laboratory of Radiation Chemistry and Functional Materials Hubei University of Science and Technology Hubei Xianning437100 China State Key Laboratory of Biocatalysis and Enzyme Engineering School of Life Sciences Hubei University Wuhan430062 China Hubei University China

The development of perovskite solar cells (PSCs) is significantly influenced by non-radiative recombination caused by defects and energy losses at the interfaces. In this study, we employed NiSe to modify the interface between the electron transport layer and the perovskite layer. The introduction of the modified layer reduced the defect density in the devices, improved the quality of the perovskite film, effectively mitigated non-radiative recombination caused by defects, The conduction band of NiSe, located at -4.21 eV, is sandwiched between the energy levels of MAPbI3 (-3.92 eV) and electron transport layer (-4.5 eV), allowing for better alignment of energy levels between the layers. This facilitates efficient reduction of energy transfer barriers between these two layers. The research demonstrated that tin oxide modified with 0.4 mg·mL-1 NiSe achieved a remarkable power conversion efficiency of 14.85%, significantly higher than the unmodified devices (12.14%). The results provide a new approach for fabricating high-crystallinity and low-trap-density perovskite films. © 2024, The Authors. All rights reserved.

关键词： Nickel compounds

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Switchable polymerization from Monomer Mixtures to Synthesize Oxygen-Rich Block Copolymers with Dual Recyclability and Degradability

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Angewandte Chemie 2025年

作者： Di Xie Zhi-Hua Jia Yan-Li Zhang Xin-Lei Cai Long-Nv Liu Prof. Guan-Wen Yang Prof. Xiaohui Kang Prof. Xianming Zhang Prof. Yao-Yao Zhang National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang) School of Materials Science and Engineering Zhejiang Sci-Tech University Hangzhou 310018 China Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China College of Pharmacy Dalian Medical University Dalian 116044 China

Switchable catalysis from monomer mixtures has been emerging as a powerful technique to synthesize various useful block copolymers, yet represents a significant challenge in polymer chemistry. Herein, we present the synthesis of well-defined polyacetal/polycarbonate block copolymers through switchable polymerization from mixtures of terminal epoxides, internal epoxides, o -phthalaldehyde (OPA) and CO 2 . The exclusive chemoselectivity of terminal epoxide or internal epoxide was achieved by controlling the reaction atmosphere. The dynamic equilibrium of acetal anion and alkoxy anion is the key to the successful switch from terminal epoxides/OPA copolymerization to internal epoxides/CO 2 copolymerization. Computational studies elucidated the kinetic and thermodynamic preferences underlying this selective polymerization. The acid/base labile nature of the block copolymers enables their sequence-controlled chemical recycling/degradation. These novel polyacetal/polycarbonate block copolymers with facilely sequence-controlled polymerization/depolymerization capabilities will enable their further tailored applications and contribute to the development of a circular plastic economy.

关键词： switchable polymerization block copolymer epoxide sequence control selective depolymerization

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Photo-Induced Self-Reduction Enabling Ultralow Threshold Voltage Energy-Conservation Electrochromism

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SSRN 2022年

作者： Bai, Zhiyuan Li, Ran Ping, Lu Fan, Qingchao Lu, Ziqiu Hou, Chengyi Zhang, Qinghong Li, Yaogang Li, Kerui Ling, Xi Wang, Hongzhi State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering Donghua University Shanghai201620 China Department of Chemistry Boston University 590 Commonwealth Avenue BostonMA02215 United States Key Laboratory of Smart Fiber Technology and Products China Textile Industry Association Shanghai201620 China

Electrochromic (EC) devices are highly desired for fields like smart windows, sensing, and display because of their great light modulation ability. However, the high driving voltage of the EC device usually leads to the decomposition of internal electrolyte, degradation of cyclability and higher energy consumption. In this work, based on the finding of the photo-induced self-reduction and coloration of light illuminated viologen/TiO 2 gels (VTGs), we develop VTG-based devices which show remarkable EC performance under an ultralow voltage (~0.1 V). The working energy consumption of a VTG device is at least one order of magnitude lower than those of reported EC devices and other display technologies, giving rise to the larger area/scale optical modulation. Furthermore, through the construction of RGB array displays, large-area EC devices, and flexible EC devices, the universal applicability and multifield potential applications of VTGs were demonstrated. © 2022, The Authors. All rights reserved.

关键词： Electrochromism

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High-Performance 3-D fiber Network Composite Electrolyte Enabled with Li-Ion Conducting Nanofibers and Amorphous PEO-Based Cross-Linked polymer for Ambient All-Solid-State Lithium-Metal Batteries

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Advanced fiber Materials 2019年第1期1卷 46-60页

作者： Chaoyi Yan Pei Zhu Hao Jia Jiadeng Zhu R.Kalai Selvan Ya Li Xia Dong Zhuang Du Indunil Angunawela Nianqiang Wu Mahmut Dirican Xiangwu Zhang Fiber and Polymer Science Program Department of Textile EngineeringChemistry and ScienceWilson College of TextilesNorth Carolina State UniversityRaleighNC 27695-8301USA Department of Physics and Organic and Carbon Electronics Lab North Carolina State UniversityRaleighNC 27695-8301USA Department of Mechanical and Aerospace Engineering West Virginia UniversityMorgantownWV 26506USA

Solid electrolytes have gained attention recently for the development of next-generation Li-ion batteries since they can fun-damentally improve the battery stability and *** various types of solid electrolytes,composite solid electrolytes(CSEs)exhibit both high ionic conductivity and excellent interfacial contact with the *** active nanofib-ers into the polymer matrix demonstrates an effective method to fabricate ***,current CSEs based on traditional poly(ethylene oxide)(PEO)polymer suffer from the poor ionic conductivity of PEO and agglomeration effect of inorganic fillers at high concentrations,which limit further improvements in Li+conductivity and electrochemical ***,we synthesize a novel PEO based cross-linked polymer(CLP)as the polymer matrix with naturally amorphous structure and high room-temperature ionic conductivity of 2.40×10^(−4)S cm^(−1).Li_(0.3)La_(0.557)TiO_(3)(LLTO)nanofibers are incorporated into the CLP matrix to form composite solid electrolytes,achieving enhanced ionic conductivity without showing filler *** high content of Li-conductive nanofibers improves the mechanical strength,ensures the conductive network,and increases the total Li+conductivity to 3.31×10^(−4)S cm^(−1).The all-solid-state Li|LiFePO_(4)batteries with LLTO nanofiber-incorporated CSEs are able to deliver attractive specific capacity of 147 mAh g^(−1)at room temperature,and no evident dendrite is found at the anode/electrolyte interface after 100 cycles.

关键词： Cross-linked PEO polymer Li_(0.33)La_(0.55)TiO_(3)nanofibers Composite solid electrolyte All-solid-state batteries Ambient working temperature

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Biopolymers-based microencapsulation technology for sustainable textiles development: A short review

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Case Studies in Chemical and Environmental engineering 2023年 7卷

作者： Peng, Xiongyi Umer, Muhammad Pervez, Md. Nahid Hasan, K.M. Faridul Habib, Md Ahsan Islam, Md. Shahinoor Lin, Lina Xiong, Xiaorong Naddeo, Vincenzo Cai, Yingjie Hubei Provincial Engineering Laboratory for Clean Production and High Value Utilisation of Bio-based Textile Materials Wuhan Textile University Hubei Wuhan 430200 China School of Computing Huanggang Normal University Huanggang 438000 China Sanitary Environmental Engineering Division (SEED) Department of Civil Engineering University of Salerno via Giovanni Paolo II 132 SA Fisciano 84084 Italy Fiber and Nanotechnology Program University of Sopron Sopron 9400 Hungary South China Advanced Institute for Soft Matter Science and Technology School of Emergent Soft Matter South China University of Technology Guangzhou 510640 China Department of Chemical Engineering Bangladesh University of Engineering and Technology Dhaka 1000 Bangladesh

Microencapsulation methods in product development may result in innovative products with improved stability, functionality, and active chemical release (s). Microcapsules may be made out of biopolymers instead of synthetic polymers because of their biodegradability, lower production costs, and greater accessibility. The potential of biopolymers-based microencapsulation technology in sustainable textiles is substantial despite this field only getting started. This short review explores the role of biopolymers such as chitosan, gelatin, alginate, and cellulose in microencapsulation-mediated sustainable textile technology. The long-term effects of using microencapsulation made from biopolymers are also discussed, with an eye toward sustainability. © 2023 The Authors

关键词： Cellulose Chitosan Functional textiles Microencapsulation Sustainable textiles

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Correction: N-doped carbon nanoparticles on highly porous carbon nanofiber electrodes for sodium ion batteries

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RSC advances 2025年第8期15卷 6370页

作者： Meltem Yanilmaz Bülin Atıcı Jiadeng Zhu Ozan Toprakci Juran Kim Nano-Science and Nano-Engineering Program Graduate School of Science Engineering and Technology Istanbul Technical University Istanbul 34469 Turkey yanilmaz@itu.edu.tr. Textile Engineering Istanbul Technical University Istanbul 34469 Turkey. Smart Devices Brewer Science Inc. Springfield MO 65806 USA. Department of Polymer Materials Engineering Yalova University 77200 Yalova Turkey. Advanced Textile R&D Department Korea Institute of Industrial Technology (KITECH) Ansan 15588 Korea jkim0106@kitech.re.kr.

[This corrects the article DOI: 10.1039/D3RA00635B.].

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Corrigendum to “Comparing two absorbable hemostatic composites produced from plant nanocellulose and bacterial nanocellulose” [Ind. Crop. Prod. 223 (2025) 120249]

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Industrial Crops and Products 2025年 230卷

作者： Lu Liu Xuejun Zhang Lin Chen Feng F. Hong State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Donghua University Shanghai 201620 China College of Biological Science and Medical Engineering Donghua University No.2999 North Ren Min Road Shanghai 201620 China Scientific Research Base for Bacterial Nanofiber Manufacturing and Composite Technology China Textile Engineering Society Shanghai 201620 China National Advanced Functional Fiber Innovation Center Wujiang Suzhou China

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