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Nano Materials Science 2024年第3期6卷 337-344页

作者： Ziye Chen Zexu Hu Shining Chen Senlong Yu Liping Zhu hengxue xiang Meifang Zhu Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai201620China College of Mechanical and Engineering Donghua UniversityShanghai201620China

Temperature regulating fibers(TRF_(s)) with high enthalpy and high form stability are the key factors for thermal management. However, the enthalpies of most TRFsare not high, and the preparation methods are still at the laboratory scale. It remains a great challenge to use industrial spinning equipment to achieve continuous processing of TRF_(s) with excellent thermal and mechanical properties. Here, polyamide 6(PA6) based TRF_(s) with a sheath-core structure were prepared by bicomponent melt-spinning. The sheath-core TRF(TRF_(sc)) are composed of PA6 as sheath and functional PA6 as core, which are filled with the shape stable phase change materials(ssPCM),dendritic silica@polyethylene glycol(SiO_(2)@PEG). With the aid of the sheath structure, the filling content of SiO_(2)@PEG can reach 30 %, so that the enthalpy of the TRF_(s) can be as high as 21.3 J/g. The ultra-high enthalpy guarantees the temperature regulation ability during the alternating process of cooling and heating. In hot environment, the temperature regulation time is 6.59 min, and the temperature difference is 12.93℃. In addition, the mechanical strength of the prepared TRF_(sc) reaches 2.26 cN/dtex, which can fully meet its application in the field of thermal management textiles and devices to manage the temperature regulation of the human body or precision equipment, etc.

关键词： Thermal management Hybrid fibers Polyamides Bicomponent melt spinning Temperature regulating fibers

A Skin-Inspired Self-Adaptive System for Temperature Control During Dynamic Wound Healing

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Nano-Micro Letters 2024年第8期16卷 211-224页

作者： Yaqi Geng Guoyin Chen Ran Cao Hongmei Dai Zexu Hu Senlong Yu Le Wang Liping Zhu hengxue xiang Meifang Zhu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua University2999 North Renmin RoadShanghai 201620People’s Republic of China

The thermoregulating function of skin that is capable of maintaining body temperature within a thermostatic state is ***,patients suffering from skin damage are struggling with the surrounding scene and situational ***,we report an interactive self-regulation electronic system by mimicking the human thermos-reception *** skin-inspired self-adaptive system is composed of two highly sensitive thermistors(thermal-response composite materials),and a low-power temperature control unit(Laserinduced graphene array).The biomimetic skin can realize self-adjusting in the range of 35–42℃,which is around physiological *** thermoregulation system also contributed to skin barrier formation and wound *** wound models,the treatment group healed~10%more rapidly compared with the control group,and showed reduced inflammation,thus enhancing skin tissue *** skin-inspired self-adaptive system holds substantial promise for nextgeneration robotic and medical devices.

关键词： Thermo-reception Self-regulation Flexible electronic system Wound healing

Flexible Ceramic Fibers: Recent Development in Preparation and Application

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Advanced Fiber Materials 2022年第4期4卷 573-603页

作者： Chao Jia Zhe Xu Dianfeng Luo hengxue xiang Meifang Zhu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China

Flexible ceramic fibers(FCFs)have been developed for various advanced applications due to their superior mechanical flexibility,high temperature resistance,and excellent chemical *** this article,we present an overview on the recent progress of FCFs in terms of materials,fabrication methods,and *** begin with a brief introduction to FCFs and the materials for preparation of *** that,various methods for preparation of FCFs are discussed,including centrifugal spinning,electrospinning,solution blow spinning,self-assembly,chemical vapor deposition,atomic layer deposition,and polymer *** applications of FCFs in various fields are further illustrated in detail,including thermal insulation,air filtration,water treatment,sound absorption,electromagnetic wave absorption,battery separator,catalytic application,among ***,some perspectives on the future directions and opportunities for the preparation and application of FCFs are *** envision that this review will provide readers with some meaningful guidance on the preparation of FCFs and inspire them to explore more potential applications.

关键词： Ceramic fibers Flexibility Preparation Applications

Intriguing anti-superbug Cu2O@ZrP hybrid nanosheet with enhanced antibacterial performance and weak cytotoxicity

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Nano Research 2019年第6期12卷 1453-1460页

作者： Jialiang Zhou hengxue xiang Fatemeh Zabihi Senlong Yu Bin Sun Meifang Zhu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials International Joint Laboratory for Advanced Fiber and Low-dimension MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai 201620China

In view of it's strong antibacterial function and minor toxicity,cuprous oxide (Cu2O) is frequently used in various broad-spectrum antibacterial *** the undesirable effects of superbugs still remain *** this research,a chemical deposition approach is used to prepare a Cu2O@ZrP composite with nanosheet configuration demonstrating excellent dispersibility and antibacterial *** systematic analysis,it was inffered that the content of copper in the nanosheet was about 57-188 mg/g while the average thickness of the nanosheets Cu2O formed on ZrP is approximately 0.8 *** results of the minimal inhibitory concentration (MIC) revealed that an extremely low loading of Cu2O in Cu2O@ZrP nanosheet can lead to exceptional antibacterial *** on two various superbugs;***-resistant staphylococcus aureus (MRSA) and vancomycin-resistant enterococcus (VRE),the composite nanosheet reagent performed over 99% microbial *** intesetingly,the cell growth rate of the Cu2O@ZrP nanosheet was determined to be 20% lower than that of the neat Cu2O,manifesting a weaker *** unique hybrid nanosheet with intriguing anti-superbug performance promises highly efficient protection for the fabrics,battledress,and medical textiles.

关键词： superbug Cu2O ZrP nanosheet antibacterial activitycy totoxicity

High thermal stability Cu_(2)O@OZrP micro-nano hybrids for melt-spun excellent antibacterial activity polyester fibers

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Journal of Materials Science & Technology 2021年第22期81卷 58-66页

作者： Jialiang Zhou Yaping Wang Weinan Pan hengxue xiang Peng Li Zhe Zhou Meifang Zhu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai201620China Frontiers Science Center for Flexible Electronics Xi’an Institute of Flexible Electronics&Xi’an Institute of Biomedical Materials and EngineeringNorthwestern Polytechnical UniversityXi'an710072China

Public safety incidents caused by bacterial infections have attracted widespread attention towards antibacterial textiles(fibers,fabrics,etc.).Nevertheless,it is still challenging to efficiently load inorganic nano-antibacterial materials in polymer *** this work,zirconium phosphate(ZrP,layered micro-nano materials)was utilized as a micro-nano *** octadecyl triphenyl phosphonium bromide(OTP)was intercalated between the ZrP sheets by the ion exchange method to improve the carrier-polymer compatibility and the antibacterial *** in-situ chemical reduction,the ultra-small nano-sized cuprous oxide(Cu_(2)O<5 nm)was loaded on the outer surface of ZrP to realize the uniform and stable dispersion of the Cu_(2)O on the carrier and improve the antibacterial *** ZrP nanosheets loaded with Cu_(2)O and OTP(Cu_(2)O@OZrP)had excellent antibacterial properties,and the antibacterial rate against ***,*** and *** was more than 99%.The intercalation amount of OTP in Cu_(2)O@OZrP can reach 16%,and the thermal stability was excellent and a significant increase in the Zeta ***,the decomposition temperature was greater than 350℃,which was suitable for high-temperature melt processing of ***,we prepared PET/Cu_(2)O@OZrP fibers using polyethylene glycol terephthalate(PET),which accounts for 70%of the total chemical fibers,as the fiber ***/Cu_(2)O@OZrP fibers exhibited excellent mechanical property and antibacterial performance when the content of Cu_(2)O@OZrP was only 0.2%.The antibacterial rate against five types of bacteria including super bacteria(MRSA,VRE)was more than 99%.

关键词： Cu_(2)O@OZrP Hybrid material OTP Fibers Antibacterial

静电纺纳米纤维膜的制备及其在空气过滤中的应用

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中国材料进展 2024年第6期43卷 513-524页

作者：牛桂玲陶银萍相恒学姚彧敏尹思语任慕苏孙晋良上海大学材料科学与工程学院复合材料研究中心上海200444 东华大学材料科学与工程学院上海201620

病毒的传播和由颗粒物引起的雾霾等空气污染问题已成为全球性挑战。纳米纤维膜可有效捕获空气中的颗粒物且不造成大幅压力降,因此作为一种较为理想的空气过滤介质,近年来受到了广泛关注。聚焦静电纺纳米纤维膜的制备及其在空气过滤中的... 详细信息

病毒的传播和由颗粒物引起的雾霾等空气污染问题已成为全球性挑战。纳米纤维膜可有效捕获空气中的颗粒物且不造成大幅压力降,因此作为一种较为理想的空气过滤介质,近年来受到了广泛关注。聚焦静电纺纳米纤维膜的制备及其在空气过滤中的应用,首先介绍了静电纺丝技术的原理及影响纳米纤维尺寸与形态的因素。其次,系统分析了纳米纤维膜的过滤机制、过滤效果评价参数及其影响因素。最后,总结了多种高效过滤策略,如引入纳米孔结构或支化结构、利用驻极体材料制备纳米纤维膜、构建多层膜复合结构等,并指明了绿色可持续化和多功能化是其未来发展方向。

关键词：静电纺丝技术空气过滤纳米纤维膜高效过滤策略绿色可持续化多功能化

Controllable large-scale processing of temperature regulating sheath-core fibers with high-enthalpy for thermal management

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Synthesis and characterization of an environmentally friendly PHBV/PEG copolymer network as a phase change material

纳米材料科学 2024年第3期 337页

作者： Ziye Chen Zexu Hu Shining Chen Senlong Yu Liping Zhu hengxue xiang Meifang Zhu

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Science China Chemistry 2013年第6期56卷 716-723页

作者： xiang hengxue WANG ShiChao WANG RenLin ZHOU Zhe PENG Cheng ZHU MeiFang State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua University

Novel environmentally friendly poly（hydroxybutyrate-co-hydroxyvalerate） and poly（ethylene glycol）（PHBV/PEG） copolymer networks were synthesized through free-radical solution polymerization with PHBV diacrylate （PHBVDA） and polyethylene glycol diacrylate （PEGDA） as macromers. The molecular structure of PHBV/PEG copolymer network was characterized by Fourier transform infrared （FT-IR） and 1H nuclear magnetic resonance （1H NMR）. The morphology of the PHBV/PEG co- polymer network was characterized by polarization optical microscopy. Thermal energy storage properties, thermal reliability and thermal stability were investigated by differential scanning calorimetry （DSC） and thermogravimetric analysis. The results indicated that the PHBV/PEG copolymer network hindered the growth of PEG crystalline segments or PHBV segments. PHBV/PEG copolymer network had a higher latent heat enthalpy, which didn＇t reduce with the components of PHBV in- creased. Moreover, PHBV/PEG copolymer network still had good thermal stability even at 300 ~C. These results suggested that such environmentally friendly copolymer network would have wide applications in phase change energy storage materials.

关键词： phase change material environmentally friendly energy storage material copolymer network PHBV PEG

Lignin-based carbon fibers: Formation, modification and potential applications

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Green Energy & Environment 2022年第4期7卷 578-605页

作者： Shichao Wang Jixing Bai Mugaanire Tendo Innocent Qianqian Wang hengxue xiang Jianguo Tang Meifang Zhu Institute of Hybrid Materials College of Materials Science and EngineeringQingdao UniversityQingdao266071China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai201620China

As an aromatic polymer in nature, lignin has recently attracted gross attention because of its advantages of high carbon content, low cost and bio-renewability. However, most lignin is directly burnt for power generation to satisfy the energy demand of the pulp mills. As a result, only a handful of isolated lignin is used as a raw material. Thus, increasing value addition on lignin to expand its scope of applications is currently a challenge demanding immediate attention. Many efforts have been made in the valorization of lignin, including the preparation of precursors for carbon fibers. However, its complex structure and diversity significantly restrict the spinnability of lignin. In this review, we provide elaborate knowledge on the preparation of lignin-based carbon fibers ranging from the relationships among chemical structures, formation conditions and properties of fibers, to their potential applications. Specifically, control procedures for different spinning methods of lignin, including melt spinning, solution spinning and electrospinning, together with stabilization and carbonization are deeply discussed to provide an overall understanding towards the formation of lignin-based carbon fibers. We also offer perspectives on the challenges and new directions for future development of lignin-based carbon fibers.

关键词： Lignin-based carbon fiber Melt spinning Solution spinning Electrospinning

One-step floating conversion of biomass into highly graphitized and continuous carbon nanotube yarns

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Green Energy & Environment 2023年第6期8卷 1711-1718页

作者： Gongxun Zhai Qianqian Wang Fuyao Liu Zexu Hu Chao Jia Dengxin Li hengxue xiang Meifang Zhu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai201620China

The rapid growth of the demand for carbon nanotubes(CNTs) has greatly promoted their large-scale synthesis and development. However,the continuous production of CNT fibers by floating catalyst chemical vapor deposition(FCCVD) requires a large amount of non-renewable carbon sources. Here, the continuous production of highly graphitized CNT yarns from biomass tannic acid(TA) is reported. The chelation of TA and catalyst promotes the rapid cracking of biomass into carbon source gas, and the pyrolysis cracking produces the reducing gas, which solves the problems of the continuous production of CNT yarns using biomass. Through simple twisting, the mechanical strength of CNT yarn can reach 886 ± 46 MPa, and the electrical conductivity and graphitization(IG/ID) can reach 2 × 10^(5)S m^(-1)and 6.3, respectively. This work presents a promising solution for the continuous preparation of CNT yarns based on green raw material.

关键词： Carbon nanotube Tannic acid Biomass Pyrolysis Floating catalyst chemical vapor deposition