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Polyetherketoneketone/carbon fiber composites with an amorphous interface prepared by solution impregnation

新型炭材料（中英文） 2024年第4期39卷 692-702页

作者： ZHANG Feng LI Bo-lan JIAO Meng-xiao LI Yan-bo WANG Xin YANG Yu YANG Yu-qiu ZHANG Xiao-hua MOE Key Laboratory of Textile Science&Technology College of TextilesInnovation Center for Textile Science and TechnologyDonghua UniversityShanghai 201620China Key Laboratory of Carbon Materials National Engineering Laboratory for Carbon Fiber TechnologyInstitute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001China

Interfacial adhesion between carbon fibers(CF)and polyetherketoneketone(PEKK)is a key factor that affects the mechanical performances of their *** is therefore of great importance to impregnate the CF bundles with PEKK as effi-ciently as *** report that PEKK with a good dispersion in a mixed solution of 4-chlorophenol and 1,2-dichloroethane can be introduced onto CF surfaces by solution impregnation and curing at 280,320,340 and 360℃.The excellent wettability or infiltra-tion of the PEKK solution guarantees a full covering and its tight binding to CFs,making it possible to evaluate the interfacial shear strength(IFSS)with the microdroplet *** interior of the CF bundles is completely and uniformly filled with PEKK by solu-tion impregnation,leading to a high interlaminar shear strength(ILSS).The maximum IFSS and ILSS reached 107.8 and 99.3 MPa,*** superior shear properties are ascribed to the formation of amorphous PEKK in the small spaces between CFs.

关键词： Polyetherketoneketone Carbon fiber Wettability Amorphous adhesion Interfacial strength

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Engineering Multiscale Heterostructure as Ionic Diode and Light-Driven Ion Pump for Osmotic-Solar Energy Harvesting

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CCS Chemistry 2025年第5期7卷 1383-1395页

作者： Xinyue Zhang Baohu Wu Huiqing Wu Peiyi Wu Key Laboratory of Science&Technology of Eco-Textile Ministry of EducationCollege of Chemistry and Chemical EngineeringDonghua UniversityShanghai 201620 National Innovation Center of Advanced Dyeing and Finishing Technology Tai’anShandong 271000 Jülich Centre for Neutron Science(JCNS) Heinz Maier-Leibnitz Zentrum(MLZ)Forschungszentrum Jülich85748 Garching

As blue energy,osmotic power holds tremendous potential for electricity generation via membranebased reverse ***,current processes suffer from low energy output mainly due to inadequate transmembrane ion transport and a polarization *** by plant growth and photosynthesis,we proposed a robust heterogeneous membrane that enabled ionic-diode rectified and light-enhanced ion transport for efficient osmotic-solar energy *** membrane was rationally constructed by in-situ growth of polyaniline(PANI)onto a sulfonated matrix,creating a multiscale heterostructure that enabled the coexistence of a Janus-like architecture and semiconductor *** from multi-asymmetries of geometry,charge,and chemistry,the membrane delivered a high unidirectional ion flow and suppressed polarization,generating an exceptional osmotic power density of up to 12.6Wm^(−2)at a 50-fold salinity ***-driven ion pumping was achieved by the synergistic photothermal and photoelectric effect of PANI *** light irradiation,temperature gradient and transmembrane potential were triggered simultaneously,accelerating ion movement,thereby elevating the energy conversion *** work pioneers the development of highperformance power generators capable of harnessing energy from diverse salty sources coupled with a solar resource.

关键词： heterostructure salinity gradient ionic diode light-driven osmotic power solar energy

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Optimization for Microbial Degumming of Ramie with Bacillus subtilis DZ_(5) in Submerged Fermentation by Orthogonal Array Design and Response Surface Methodology

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Journal of Donghua University(English Edition) 2023年第5期40卷 475-481页

作者：刘芬陈杨栋朱鹏曹张军张兴群 College of Biological Science and Medical Engineering Donghua UniversityShanghai 201620China Key Laboratory of Science&Technology of Eco-Textile Ministry of EducationDonghua UniversityShanghai 201620China College of Textile and Clothing Xinjiang UniversityUrumqi 830046China

As a kind of natural fiber,ramie fiber has distinctive advantages in textile application,but the application is limited due to the traditional degumming *** with the traditional degumming process,the microbial degumming process has many *** obtain the optimal conditions for degumming ramie with Bacillus subtilis DZ_(5)(BS DZ_(5)),a combined statistical approach of orthogonal array design(OAD)and response surface methodology(RSM)was *** influences of initial pH of the bacteria medium,culture temperature,shaking speed,degumming time and inoculum size on submerged fermentation degumming were evaluated by using fractional factorial *** main factors in the analysis were culture temperature,shaking speed and initial *** residual gum mass fraction was used as the optimization index,and the optimal conditions for degumming were determined by central composite design and *** with only a limited number of experiments,an optimal ramie microbial degumming condition was found as the culture temperature of 40℃,the initial pH in the culture medium of 8.5,the shaking speed of 205 r/min,the degumming time of 96 h and the inoculum size of 5%.After microbial degumming of ramie under the optimal conditions,there was only 10.6%residual gum by mass in the *** addition,the effective degumming of BS DZ_(5)was also confirmed by a scanning electron microscope(SEM).

关键词： microbial degumming optimization ramie orthogonal array design(OAD) response surface methodology(RSM)

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A waterproof,environment-friendly,multifunctional,and stretchable thermoelectric fabric for continuous self-powered personal health signal collection at high humidity

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SusMat 2023年第5期3卷 709-720页

作者： Xinyang He Bingyi Li Jiaxin Cai Honghua Zhang Chengzu Li Xinxin Li Jianyong Yu Liming Wang Xiaohong Qin Key Laboratory of Textile Science&Technology Ministry of EducationCollege of TextilesDonghua UniversityShanghaiChina Center for Civil Aviation Composites College of TextilesDonghua UniversityShanghaiChina Innovation Center for Textile Science and Technology Donghua UniversityShanghaiChina

Thermoelectric sensors have attracted increasing attention in smart wearables due to the recognition of multiple signals in self-powered ***,present thermoelectric devices show disadvantages of low durability,weak wearability,and complex preparation processes and are susceptible to moisture in the microenvironment of the human body,which hinders their further application in wearable ***,we prepared a new thermoelectric fabric with thermoplastic polyurethane/carbon nanotubes(TPU/CNTs)by combining vacuum filtration and electrospraying *** TPU microsphere coating with good biocompatibility and environmental friendliness made the fabric worn directly and exhibits preferred water resistance,mechanical durability,and stability even after being bent 4000 times,stretched 1000 times,and washed 1000 ***,this fabric showed a Seebeck coefficient of 49μVK−1 and strain range of 250%and could collect signals well and avoided interference from *** on the biocompatibility and safety of the fabric,it can be fabricated into devices and mounted on the human face and elbow for long-term and continuous collection of data on the body’s motion and breathing simultaneously to provide collaborative support *** thermoelectric fabric-based sensor will show great potential in advanced smart wearables for health monitoring,motion detection,and human–computer interaction.

关键词： biocompatibility health monitor self-powered sensing thermoelectric fabrics waterproof

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Ballistic performance of spaced multi-ply soft fabrics: Experimental and numerical investigation

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Defence technology（防务技术） 2024年第4期34卷 143-155页

作者： Zhongwei Zhang Xiaoning Yang Yuan Lin Ziming Xiong Yuhang Xiang Yi Zhou Mingyang Wang State Key Laboratory of Explosion&Impact and Disaster Prevention&Mitigation Army Engineering University of PLANanjing 210007China School of Mechanical Engineering Nanjing University of Science&TechnologyNanjing 210007China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China Postdoctoral Station of Civil Engineering Army Engineering University of PLANanjing 210007China

It has been reported that the ply gap influences the ballistic resistance of spaced multi-ply fabric systems,but its working mechanism was not well-understood. This paper reports the experimental and numerical approaches and results of an investigation on the mechanisms that enable the improved ballistic performance of spaced multi-ply systems. Penetration tests were performed over a range of impact velocities ranging from 200 m/s to 400 m/s. The results confirmed that the ply gap is beneficial to the energy absorption capability of the systems. This is because the front plies tend to absorb more energy when they are not immediately constrained by the rear plies. During a ballistic event, the gap relieves the reflection of the compressive pulse, prolonging the projectile engagement time with the front plies;on the other hand, the rear plies become increasingly less active in dissipating energy as the gap *** the gap is sufficiently widened to avoid any interference between the plies before the failure of the front ply, the responses of the whole system no longer vary. It was also found that the ballistic performance of the spaced systems is influenced by ply thickness, impact velocity, and the stacking order of the ply gap.

关键词： Energy absorption capability Ply gap Ballistic performance The front ply The rear ply

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High Performance of PVA Nanocomposite Reinforced by Janus-like Asymmetrically Oxidized Graphene:Synergetic Effect of H-bonding Interaction and Interfacial Crystallization

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Chinese Journal of Polymer science 2022年第4期40卷 373-383页

作者： Ning Zhang Bin Zhang Yong Pang Hong-Sheng Yang Lu Zong Yong-Xin Duan Jian-Ming Zhang Key Laboratory of Rubber-Plastics Ministry of Education/Shandong Provincial Key Laboratory of Rubber-plasticsQingdao University of Science&TechnologyQingdao 266042China State Key Laboratory of Bio-fibers and Eco-textiles Qingdao UniversityQingdao 266071China

Macromolecule nanocrystal network and strong interfacial interaction are always beneficial to enhance the mechanical property of polymer-based ***(vinyl alcohol)(PVA),a typical biocompatible semicrystalline polymer,is an ideal candidate for preparing high performance polymer-based ***,the rich hydrogen bonds between PVA matrix and graphene oxide(GO)can disrupt the formation of PVA nanocrystal ***,it remains a great challenge to achieve both strong and tough PVA-GO ***,by introducing a novel Janus-like amphiphilic graphene oxide(JGO),both hydrogen bonding and interfacial crystallization have been constructed between JGO sheets and PVA *** from amphiphilic interfacial interaction and the enhanced crystal network,both PVA-JGO dried films and their swollen hydrogel films show superior mechanical properties than those of traditional PVA-GO ***-JGO dried films exhibit a 264%improvement of toughness at a JGO loading of 1 wt%.Meanwhile,the corresponding PVA-JGO swollen hydrogel films display simultaneous improvement of nearly 8 times increase of tensile strength and 20 times increase of toughness compared to traditional PVA-GO *** work indicates multiple interfacial interactions and macromolecule crystal networks can be concurrent in PVA nanocomposites by innovative modification of nanofillers,providing a new strategy to construct PVA nanocomposites with high strength and high *** integration of outstanding mechanical and swelling resistance properties on PVA-JGO nanocomposite films render their promising applications,such as packaging and toughening hydrogel materials.

关键词： Poly(vinyl alcohol) Janus-like graphene oxide Hydrogen-bonding interactions Interfacial crystallization Amphiphilicity

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Ionic liquid-wrapped MXene film with bowl-like structures for highly integrated micro-supercapacitor array with ultrahigh output voltage

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Nano Research 2023年第4期16卷 4926-4932页

作者： Cai-Yun Ren Sheng-You Qiu Jing-Ru Zhai Ke-Qi Zhang Jia-Xing Lu Jian Gao Chuang Wang Yong-Chao Zhang Xiao-Dong Zhu State Key Laboratory Base of Eco-Chemical Engineering Institute of Chemical TechnologyQingdao University of Science&TechnologyQingdao 266042China School of Chemistry and Chemical Engineering Harbin Institute of TechnologyHarbin 150080China School of Materials Sun Yat-sen UniversityShenzhen 518107China

Recent researches in the development of in-plane micro-supercapacitor(MSC)have been dedicated to advancing its energy density in a finite storage ***,the low ion-accessible surface area of plane electrode material has been the bottleneck limiting the energy output of ***,we design a stable ionic liquid(IL)-MXene microemulsion system in virtue of tween-20(TW20),gathering IL-TW20 microdroplets around MXene *** microemulsion can adhere on the current collector and form the dense MXene-TW20-IL *** IL as spacer and electrolyte is retained in the interlamination of MXene with the elimination of the TW20 during heat treatment,which enlarges the ion-accessible surface area of the MXene ***,the MSC based on the flexible MXene-IL film exhibits a high areal capacitance(44.6 mF·cm^(−2)),a high areal and volumetric energy density(50.7μW·h·cm^(−2)and 39 mW·h·cm^(−3)),surpassing most of the reported MXene-based *** the MSC unit can be arbitrarily integrated in terms of various energy and voltage *** instance,the integrated array with thirty MSC units in series realizes a high voltage output of 90 V,widening the range of application in next-generation microelectronic devices.

关键词： microemulsion system ionic liquid-wrapped MXene films micro-supercapacitors extra-high voltage integration

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电子显示纺织品的设计与集成

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science China Materials 2023年第10期66卷 3782-3794页

作者：季东晓梁雯宇滕飞李欣欣覃小红 Key Laboratory of Textile Science&Technology Ministry of EducationCollege of TextilesDonghua UniversityShanghai 201620China

显示器是现代电子产品中人与机器交互的重要媒介.将显示器与纺织品相结合,已成为下一代智能可穿戴设备领域备受瞩目的方向之一.然而,从传统的刚性显示器向基于纺织品的柔性显示器过渡面临着诸多挑战,比如对显示器的纺织柔性化设计与精... 详细信息

显示器是现代电子产品中人与机器交互的重要媒介.将显示器与纺织品相结合,已成为下一代智能可穿戴设备领域备受瞩目的方向之一.然而,从传统的刚性显示器向基于纺织品的柔性显示器过渡面临着诸多挑战,比如对显示器的纺织柔性化设计与精确集成技术的要求不断提高.这篇综述将重点概述这一领域最前沿的研究成果,主要涉及发光原理、典型材料以及结构设计的相互关联,其中纺织品和电子显示系统的无缝集成是本文的重点.此外,我们还将探索纺织品电子显示器的预期发展轨迹,并强调纱线发光器件的重要作用,以及微电子工程的集成方法和技术所带来的主要挑战.

关键词： display textiles integration wearable electronics smart yarns electroluminescence

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Effect of Pore Morphology and Regional Distribution of Liquid Diffusion Directionality in Nonwoven Fabrics

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Journal of Donghua University(English Edition) 2023年第3期40卷 267-276页

作者：殷炯周倩倩纪峰张瑞云王妮王永生 Key Laboratory of Textile Science&Technology Ministry of EducationDonghua UniversityShanghai 201620China China Chemical Fibers Association Beijing 100020China

The effect of pore morphology and regional distribution on liquid diffusion directionality in nonwoven fabrics was investigated in this *** orientation angle(POA) and pore aspect ratio(PAR) were proposed to characterize the pore morphology,and α-region,β-region,and αβ-region were used to describe the characteristics of the pore regional *** directional characteristics of macroscopic diffusion of liquid in nonwoven fabrics were characterized by the indicator of primary diffusion orientation angle(PDOA).Ten kinds of spunlaced nonwoven fabrics were ***,the data of pore characteristic indices of each sample were obtained through scanning electron microscope(SEM) and the image processing technology as well,and the pore regional distribution map of each sample was further ***,the PDOA of each sample was obtained through the droplet method and image processing *** on the data and statistical analysis,it was found that the PDOA of a certain volume of liquid in the nonwoven fabrics presented a significant linear relationship with the average POA of the nonwoven *** the characteristics of pore distribution affected the directionality of liquid diffusion in the nonwoven *** samples with a large proportion of α-region and good distribution had prominent liquid diffusion along the direction of laying-up,and the difference in liquid diffusion of the samples was more obvious between the directions of laying-up and vertical laying-up.

关键词： liquid diffusion anisotropy pore morphology regional distribution primary diffusion orientation angle(PDOA)

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Biomimetic,fire-resistant,ultralight and porous carbon fiber sponges enabling safe and efficient remediation of crude oil spills in harsh environments

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Journal of Materials science & technology 2023年第27期158卷 77-85页

作者： Yushan Li Songjun Yao Song Yan Mei Xu Long Zheng Fei Pan Yeqiang Tan Xianze Yin College of Materials Science and Engineering State Key Laboratory of New Textile Materials&Advanced Processing TechnologyWuhan Textile UniversityWuhan 430200China National Local Joint Laboratory for Advanced Textile Processing and Clean Production Wuhan Textile UniversityWuhan 430200China Engineering Research Center of Ministry of Education for Clean Production of Textile Printing and Dyeing Wuhan Textile UniversityWuhan 430200China College of School of Environmental Engineering Wuhan Textile UniversityWuhan 430200China State Key Laboratory of Bio-Fibers and Eco-Textiles Collaborative Innovation Center of Marine Biobased Fiber and Ecological Textile Technology Institute of Marine Biobased MaterialsCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China

Advanced absorbents must meet the requirements of superior hydrophobic/oleophilic behavior,favorable adsorption efficiency,and high photothermal and Joule heating performance to handle frequent crude oil ***,current carbon-based absorbents suffer from poor fire resistance,thus severely limiting their application in harsh ***,inspired by a bird’s nest,a polymer“welding”strategy is proposed to design a versatile absorbent in which the polymer serves as a“binder”to interconnect discontinuous fibers together to form a 3D welded *** continuous conductive networks endow the absorbent with high photothermal and Joule heating effect,thus achieving all-weather adsorption,and improving the adsorption efficiency of crude oil via the self-heating *** with other absorbents,the absorbent prepared via polymer welding technology exhibited preferable comprehensive performance,such as superhydrophobicity,high fire resistance,and high absorption ***,the noninflammable absorbent can restrain the combustion of crude oil,thereby reducing its combustion in case of *** versatile absorbent is expected to provide a promising solution for the safe and effi-cient cleanup of crude oil spills in harsh ***,the unique polymer welding strategy can be developed into a universal strategy for other material systems to expand their applications.

关键词： Polymer welding strategy Photothermal effect Joule heating effect Fire resistance Crude oil recovery

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