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Structure design for high performance n-type polymer thermoelectric materials

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Chinese Physics B 2022年第2期31卷 33-43页

作者： Qi Zhang Hengda Sun meifang zhu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China

Organic thermoelectric(OTE)materials have been regarded as a potential candidate to harvest waste heat from complex,low temperature surfaces of objects and convert it into ***,n-type conjugated polymers as organic thermoelectric materials have aroused intensive research in order to improve their performance to match up with their ptype *** this review,we discuss aspects that affect the performance of n-type OTEs,and further focus on the effect of planarity of backbone on the doping efficiency and eventually the TE *** then summarize strategies such as implementing rigid n-type polymer backbone or modifying conventional polymer building blocks for more planar *** the outlook part,we conclude forementioned devotions and point out new possibility that may promote the future development of this field.

关键词： organic thermoelectrics conducting polymers organic semiconductor doping

Synthesis of Fluorinated Urchin-like Serried Hydroxyapatite with Improved Water Sorption-Solubility and Bioactivity for Dental Composites

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Chemical Research in Chinese Universities 2021年第5期37卷 1092-1100页

作者： CHEN Hongyan WANG Junjun WANG Ruili zhu meifang 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 UniversityShanghai201620P.R.China

Fluorine is present in the hydroxyapatite mineral in natural tooth enamel,which plays a key role in the prevention of dental *** aim of this study is to synthetize the fluorinated urchin-like serried hydroxyapatite(FnUHA)particles with different degrees of fluorine substitution and explore the effect of the fluorine element on the water absorption-solubility,mechanical strength,and biological activity of dental composites.

关键词： fluorine prevention element

Scalable carbon black deposited fabric/hydrogel composites for affordable solar-driven water purification

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Journal of Materials Science & Technology 2022年第11期106卷 10-18页

作者： Ying Guo Congqi Li Peiling Wei Kai Hou meifang zhu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China

Interfacial solar-driven evaporators have presented great potential for water purification owing to their low energy consumption and high steam generation efficiency. However, their further applications are hindered by the high costs and complicated fabrication processes. Here, a scalable bilayer interfacial evaporator was constructed via an affordable technique, in which carbon black deposited nonwoven fabric(CB@NF) was employed as the upper photothermal layer, as well as PVA/starch hybrid hydrogel for selffloating and water transport. Under simulated one sun irradiation, CB@NF layer displayed excellent photothermal conversion performance, whose temperature could increase 30.4 ℃ within 15 min. Moreover,the introduction of starch into PVA endowed the hybrid hydrogels with considerable water-absorption capability on the premise of ensuring mechanical properties. The resultant CB@NF/PVA/starch composites achieved superior interfacial adhesion performance with interfacial toughness at about 200 J *** with good evaporation performance, salt-rejection property and high purification efficiency on pollutants, this evaporation system would become a promising candidate to alleviate water shortage.

关键词： Fabric/hydrogel composite Interfacial solar-driven evaporation Water purification

Snakeskin‑Inspired Hierarchical Winkled Surface for Ultradurable Superamphiphobic Fabrics via Short‑Fluorinated Polymer Reactive Infusion

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Advanced Fiber Materials 2023年第2期5卷 543-553页

作者： Mingqing Yu Wei Lyu Yaozu Liao meifang zhu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials&College of Materials Science and Engineering Donghua UniversityShanghai 21620China

Durable superamphiphobic surfaces are highly desired for real-world applications such as self-cleaning,anti-fouling,personal protection,and functional ***,challenges still exist in constructing robust superamphiphobic surfaces by using short-fluorinated polymers as one of the promising alternatives for environmentally unfriendly long perfluorinated side-chain *** patterns on biological skins endow the creatures with a specific surface for ***,a facile strategy was proposed to generate hierarchical wrinkles for ultradurable superamphiphobic fabrics by simulating the deformation adaptability of ***-like hierarchical winkling was constructed by the infusion of reactive perfluorooctyltriethoxysilane(FOS)in a wet chemical plus vapor polymerization *** the infusion of FOS,the mismatch of shrinkage caused by gradient crosslinking leads to the formation of a soft wrinkled poly(perfluorooctyl trieth-oxysilane)(poly-FOS)*** a snakeskin-like hierarchical wrinkled surface and high fluorine density of poly-FOS endowed the treated superamphiphobic fabrics with high water resistance(contact angle 169°),castor oil resistance(154°),and extraordinary durability(withstanding 100 standard laundries,15,000 rubbing cycles and strong acid and alkali solu-tions).Moreover,a superamphiphobic surface can be formed on various substrates,including fabric,wood,paper,and *** work thus gives new insights into the environmentally friendly manufacture of ultradurable superamphiphobic fabrics.

关键词： Superamphiphobicity Short-fluorinated polymer Hierarchical wrinkled surface Ultradurable Gradient crosslinking

Fiber Electronics Bring a New Generation of Acoustic Fabrics

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Advanced Fiber Materials 2022年第3期4卷 321-323页

作者： Shaowu Pan meifang zhu State Key Laboratory for Modifcation of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China

Acoustic fabrics have traditionally been served as sound absorbers,dissipating sound signals into unusable *** innovative electronic fber woven into an elaborately designed fabric enables an unprecedented acoustic *** useful applications in sound direction identifcation,acoustic communications and heart sound auscultation illustrate a wide spectrum of unforeseen opportunities of the considerable technology.

关键词： Acoustic technology. sound

Reversible Fusion and Fission of Graphene Oxide‑based Fibers

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Advanced Fiber Materials 2021年第6期3卷 381-382页

作者： Gang Wang meifang zhu State Key Lab for Modifcation of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua University2999 Renmin RoadShanghai 201620China

Stimuli-responsive fusion and fssion are widely observed in both bio-organizations and artifcial molecular ***,Professor Gao’s group in Zhejiang University discovered and explained an interesting phenomenon that precisely reversible fusion and fssion in a bundle of wet-spun graphene oxide fbers is *** provides a new model to uncover the dynamic assembly of macroscopic soft *** study hopefully inspires further research in engineering structural materials,as well as felds requiring a stimuli-responsive and dynamic system.

关键词： materials. dynamic bundle

Self-reinforcement of Light, Temperature-Resistant Silica Nanofibrous Aerogels with Tunable Mechanical Properties

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Advanced Fiber Materials 2020年第6期2卷 338-347页

作者： Tao Huang Yue zhu Jie zhu Hao Yu Qinghua Zhang meifang zhu Key Laboratory of High Performance Fibers and Products Ministry of EducationDonghua UniversityShanghai 201620People’s Republic of China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620People’s Republic of China

Silica aerogels have attracted significant interest in thermal insulation applications because of their low thermal conductivity and great thermal stability,however,their fragility has limited their application in every-day ***,a self-reinforcing strategy to design silica nanofibrous aerogels(SNFAs)is proposed using electrospun SiO2 nanofibers as the matrix and a silica sol as a high-temperature *** this approach results in a strong and compatible interfacial interaction between the SiO_(2) fibers and the silica sol,which results in the SNFAs exhibiting high-temperature-resistant and tunable mechanical properties from elastic to ***,additional properties such as low density,high thermal insulation performance,and fire-resistance are still *** self-reinforcing method described herein may be extended to numerous other new ceramic aerogels that require robust mechanical properties and high-temperature resistance.

关键词： Nanofiber aerogel Silica Electrospinning Self-reinforcement

Nanoprocessed Silk Makes Skin Feel Cool

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Advanced Fiber Materials 2022年第3期4卷 319-320页

作者： Shaowu Pan meifang zhu State Key Laboratory for Modifcation of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China

Silk is one of the most favourable fabrics with cooling *** nanoprocessing of silk through a molecular bonding design and scalable coupling reagent-assisted method can achieve subambient daytime radiative cooling,open... 详细信息

关键词： Silk Skin ambient

Conformally anchoring nanocatalyst onto quartz fibers enables versatile microreactor platforms for continuous-flow catalysis

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Science China Chemistry 2021年第9期64卷 1596-1604页

作者： Jiahui Fan Jian Lu Zhou Sha Weiwei Zuo Xiang Fei meifang zhu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai201620China

Continuous-flow microreactors offer increased reactivity and reusability via unique reaction pathways to address a wide range of practical nanocatalysis ***,only limited platforms exist to employ these microreactors for versatile nanocatalytic *** this work,we conformally anchored nickel oxide(Ni O)nanosheets onto quartz fibers(QFs),which exhibited a high catalytic activity using the hydrogenation of 4-nitrophenol(4-NP)as a model reaction in a batch reaction *** importantly,we demonstrated that fiber-based QF@Ni O composites(e.g.,cotton,fabric,belt,felt)can be integrated as versatile platforms to develop microreactors for continuous-flow catalytic applications including hydrogenation reactions and dyecatalyzed *** fiber-based three-dimensional(3 D)nanocatalyst architecture effectively drives continuous-flow catalytic reactions with unprecedented efficiency due to the easy diffusion of reactant molecules into the fibrous structure,allowing contact with catalytic active *** approach to continuous-flow microreactor design uses surface hybridization as a guideline to immobilize nanocatalysts onto the *** QF-based platforms,coupled with rational design,are expected to be applied to a wide range of nanocatalytic reactions.

关键词： quartz fiber platform nanocatalyst immobilization microreactor continuous-flow catalysis