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电磁屏蔽导电涂料的研究与应用进展

复合材料学报 2024年第2期41卷 572-591页

作者：李明展李恩潘亚敏刘宪虎郑州大学材料科学与工程学院橡塑模具国家工程研究中心郑州450001

为了深入了解电磁屏蔽导电涂料的制备与性能,促进高性能、低成本的电磁屏蔽导电涂料研究与应用发展,本文首先介绍了涂料的导电机制和电磁屏蔽基本原理。其次,以不同类别的导电填料和树脂基体为重点,系统介绍了各类材料结构、性能的差异... 详细信息

为了深入了解电磁屏蔽导电涂料的制备与性能,促进高性能、低成本的电磁屏蔽导电涂料研究与应用发展,本文首先介绍了涂料的导电机制和电磁屏蔽基本原理。其次,以不同类别的导电填料和树脂基体为重点,系统介绍了各类材料结构、性能的差异对涂料整体性能的影响,综述了当前的研究进展及针对实际应用进行的多功能改良。最后,针对电磁屏蔽涂料目前在填料结构、填料合成、聚合物基体与填料的相容性的问题进行了总结及表达了对未来产业发展的展望。

关键词：电磁屏蔽导电涂料导电填料聚合物基体屏蔽效能复合材料

主动脉夹层合并截瘫诊断与治疗2例并文献复习

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山东大学学报（医学版） 2024年第8期62卷 101-106页

作者：甘琦晴刘现虎苟园杨彬济宁医学院临床医学院山东济宁272002 济宁市第一人民医院血管外科山东济宁272000

目的探讨2例主动脉夹层合并截瘫患者的早期诊断与治疗方式以及对相关文献进行复习。方法分析2例主动脉夹层合并截瘫患者的临床资料,并对相关文献进行检索复习。结果通过CT血管成像和患者的临床表现,确诊为主动脉夹层合并截瘫。经过主动... 详细信息

目的探讨2例主动脉夹层合并截瘫患者的早期诊断与治疗方式以及对相关文献进行复习。方法分析2例主动脉夹层合并截瘫患者的临床资料,并对相关文献进行检索复习。结果通过CT血管成像和患者的临床表现,确诊为主动脉夹层合并截瘫。经过主动脉覆膜支架腔内修复术+脑脊液(cerebral spinal fluid,CSF)引流术+甲泼尼龙治疗后症状有所改善,院外随访,患者症状明显改善。结论主动脉夹层合并截瘫的患者使用主动脉覆膜支架腔内修复术+CSF引流术+甲泼尼龙治疗是可行的,增加患者截瘫症状的治愈率,为此类患者的治疗提供了临床治疗思路。

关键词：主动脉夹层截瘫脊髓缺血主动脉覆膜支架腔内修复术脑脊液引流术治疗

Highly Sensitive Ultrathin Flexible Thermoplastic Polyurethane/Carbon Black Fibrous Film Strain Sensor with Adjustable Scaffold Networks

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Nano-Micro Letters 2021年第4期13卷 159-177页

作者： Xin Wang xianhu liu Dirk W.Schubert Institute of Polymer Materials Friedrich-Alexander-University Erlangen-NurembergMartensstr.791058 ErlangenGermany National Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou UniversityZhengzhou 450002People’s Republic of China Bavarian Polymer Institute Dr.Mack‑Strasse 7790762 FürthGermany

In recently years,high-performance wearable strain sensors have attracted great attention in academic and ***,a conductive polymer composite of electrospun thermoplastic polyurethane(TPU)fibrous film matrix-embedded carbon black(CB)particles with adjustable scaffold network was fabricated for high-sensitive strain *** work indicated the influence of stereoscopic scaffold network structure built under various rotating speeds of collection device in electrospinning process on the electrical response of TPU/CB strain *** structure makes the sensor exhibit combined characters of high sensitivity under stretching strain(gauge factor of 8962.7 at 155%strain),fast response time(60 ms),outstanding stability and durability(>10,000 cycles)and a widely workable stretching range(0–160%).This high-performance,wearable,flexible strain sensor has a broad vision of application such as intelligent terminals,electrical skins,voice measurement and human motion ***,a theoretical approach was used to analyze mechanical property and a model based on tunneling theory was modified to describe the relative change of resistance upon the applied ***,two equations based from this model were first proposed and offered an effective but simple approach to analyze the change of number of conductive paths and distance of adjacent conductive particles.

关键词： Strain sensor Electrospinning Electronic skin Fitting model

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多孔聚乳酸材料的制备及结构性能优化进展

中国塑料 2024年第8期38卷 132-140页

作者：董光侯仰喆袁洪跃刘宪虎潘亚敏河南机电职业学院汽车工程学院郑州451192 郑州大学材料科学与工程学院郑州450001 河南机电职业学院电气工程学院郑州451192

综述了多孔聚乳酸(PLA)材料在制备工艺、孔结构调控和性能优化等方面的研究进展。介绍了多孔PLA材料的典型制备工艺,包括模板法、非溶剂诱导相分离法、冷冻干燥法和超临界CO_(2)发泡法。同时,介绍了不同孔结构以及孔尺寸和密度的变化对... 详细信息

综述了多孔聚乳酸(PLA)材料在制备工艺、孔结构调控和性能优化等方面的研究进展。介绍了多孔PLA材料的典型制备工艺,包括模板法、非溶剂诱导相分离法、冷冻干燥法和超临界CO_(2)发泡法。同时,介绍了不同孔结构以及孔尺寸和密度的变化对性能的影响。此外,重点介绍了立构复合晶(SC)对多孔PLA材料孔结构和宏观性能的影响。

关键词：聚乳酸多孔材料制备工艺结构与性能研究进展

Active straining engineering on self-assembled stacked Ni-based hybrid electrode for ultra-low overpotential

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Journal of Energy Chemistry 2023年第2期77卷 217-226,I0006页

作者： Shujie liu Rui-Ting Gao xianhu liu Xueyuan Zhang Limin Wu Lei Wang College of Chemistry and Chemical Engineering Inner Mongolia UniversityHohhot 010021Inner MongoliaChina Key Laboratory of Materials Processing and Mold Ministry of EducationZhengzhou UniversityZhengzhou 450002HenanChina State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082HunanChina Department of Materials Science State Key Laboratory of Molecular Engineering of PolymersFudan UniversityShanghai 200433China

Generating sufficient strains on metal surfaces are highly challenging owing to that most metals can deform plastically to relax the strains on the *** this work,we developed a facile but highly efficient stacked deposition strategy to in situ activation and reconstruction of NiO/NiOOH on Ni matrix,following with the migration of Fe ions to *** Fe sites on the Ni/NiO/NiOOH facilitate the formation of the stable*OH oxygenated intermediates,and the Ni matrix in the catalyst provides the catalyst excellent *** oxygen evolution reaction(OER)performance of the stacked NiFe-5 with compressive strain displays the strengthened binding to oxygenated intermediates and superior OER activity,the ultralow overpotentials of 162 versus reversible hydrogen electrode at 10 mA cm^(-2).On the other hand,the Ni-5 without the incorporation of Fe has shown an outstanding hydrogen evolution reaction(HER)activity,affording an overpotential of 47 mV at 10 mA cm^(-2).The NiFe-5‖Ni-5 enables the overall water splitting at a voltage of 1.508 V to achieve 20 mA cm^(-2) with remarkable *** stacked deposition strategy improves binding strength of Ni-based catalysts to oxygenated intermediates via generating compressive strain,causing high catalytic activities on OER and HER.

关键词： Ni-based catalysts Self-assembly stacked structure Ultra-low overpotential Water splitting

Poly(vinyl alcohol)/Graphene Nanocomposite Hydrogel Scaffolds for Control of Cell Adhesion

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Journal of Renewable Materials 2020年第1期8卷 89-99页

作者： Xiaodong Wang Meng Su Chuntai liu Changyu Shen xianhu liu Department of Materials Science and Engineering Tongji Zhejiang CollegeJiaxing314051China National Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou UniversityZhengzhou450002China

Poly(vinyl alcohol)(PVA)/reduced graphene oxide(rGO)nanocomposites is prepared by the immersion of PVA/graphene oxide(GO)nanocomposites in the reducing agent aqueous *** PVA/graphene nanocomposites can be used as scaffold after treatment by chemical crosslinking *** surface hydrophilicity of the nanocomposite scaffolds decreased with the addition of GO or rGO by measuring the contact angles of *** electrical conductivity of PVA/rGO nanocomposite scaffold increased with rGO content *** highest conductivity of PVA/rGO nanocomposite scaffolds with 10 wt%rGO could reach to 12.16×10^(−3)S/*** NIH-3T3 fibroblasts attach and grow well on the surface of PVA/rGO nanocomposite scaffolds with increasing the content of *** number of cells obviously increases on the PVA/rGO nanocomposite scaffolds,especially,at 5 wt%and 10 wt%***,a good level of conductivity and a variation in the surface property of the PVA/rGO nanocomposite scaffolds have affected NIH-3T3 fibroblasts grow.

关键词： Graphene nanocomposites hydrogels scaffolds

Flexible Ag Microparticle/MXene-Based Film for Energy Harvesting

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Nano-Micro Letters 2021年第12期13卷 235-246页

作者： Yunpeng Jia Yamin Pan Chunfeng Wang Chuntai liu Changyu Shen Caofeng Pan Zhanhu Guo xianhu liu College of Materials Science and Engineering Key Laboratory of Advanced Material Processing&Mold(Ministry of Education)National Engineering Research Center for Advanced Polymer Processing TechnologyZhengzhou UniversityZhengzhou 450002People’s Republic of China National Center for Nanoscience and Technology(NCNST) Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 100083People’s Republic of China College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060People’s Republic of China Integrated Composites Laboratory Department of Chemical&Biomolecular EngineeringUniversity of TennesseeKnoxvilleTN 37996USA

Ultra-thin flexible films have attracted wide attention because of their excellent ductility and potential *** particular,the energy-harvesting films(EHFs)have become a research hotspot because of the indispensability of power source in various ***,the design and fabrication of such films that can capture or transform di erent types of energy from environments for multiple usages remains a ***,the multifunctional flexible EHFs with e ective electro-/photo-thermal abilities are proposed by successive spraying Ag microparticles and MXene suspension between on waterborne polyurethane films,supplemented by a *** optimal coherent film exhibits a high electrical conductivity(1.17×10^(4)S m^(-1)),excellent Joule heating performance(121.3℃)at 2 V,and outstanding photo-thermal performance(66.2℃ within 70 s under 100 mW cm^(-1)).In addition,the EHFs-based single-electrode triboelectric nanogenerators(TENG)give short-circuit transferred charge of 38.9 nC,open circuit voltage of 114.7 V,and short circuit current of 0.82μ*** interestingly,the output voltage of TENG can be further increased via constructing the double triboelectrification *** comprehensive ability for harvesting various energies of the EHFs promises their potential to satisfy the corresponding requirements.

关键词： Energy harvesting MXene Ag microparticle Triboelectric nanogenerator

Ultrasmall Nanoparticle ROS Scavengers Based on Polyhedral Oligomeric Silsesquioxanes

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Chinese Journal of Polymer Science 2020年第11期38卷 1149-1156,I0004页

作者： Zhan Li Haotian Li Jianhua Zhang xianhu liu Zhipeng Gu Yiwen Li College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065China School of Materials Science and Engineering Xihua UniversityChengdu 610039China National Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou UniversityZhengzhou 450002China

Although tremendous efforts have been devoted to the structural and functional tailoring of natural polyphenol-functionalized nan oparticles,preparing ultrasmall sized(<6 nm)particles with precisely-defined structures has remained a grand *** this work,we reported the preparation of ultra-small and precisely structured polyhedral oligomeric silsesquioxanes(POSS)-based polyphenol nanopartides(T8^-,T10^-,and T12^-GAPOSS)by accurately functionalizing the POSS surface with plant polyphenol gallic acid units via thiol-Michael"click"*** polyphenol nanoparticles exhibited strong free radical scavenging capacity,good biocompatibility and ability to resist cell oxidative damage,which dem on strated great potentials in inhibiting oxidative stress in duced pathologies.

关键词： Polyhedral oligomeric silsesquioxanes(POSS) Polyphenol Ultrasmall nanoparticles Free radical scavenging

Sustainable engineering of TiO_(2)-based advanced oxidation technologies:From photocatalyst to application devices

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Journal of Materials Science & Technology 2021年第19期78卷 202-222页

作者： Meng Zu Xiaosong Zhou Shengsen Zhang Shangshu Qian Dong-Sheng Li xianhu liu Shanqing Zhang College of Chemistry and Chemical Engineering Lingnan Normal UniversityZhanjiangGuangdong524048China Centre for Clean Environment and Energy and Griffith School of Environment Griffith UniversityGold CoastQLD4222Australia College of Materials and Energy South China Agricultural UniversityGuangzhou510643China College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion MaterialsChina Three Gorges University.Yichang443002China Key Laboratory of Materials Processing and Mold(Zhengzhou University) Ministry of EducationZhengzhou450002China

In recent years,photocatalysis(PC)and photoelectrocatalysis(PEC)technologies have shown great promise as low-cost,environmentally friendly,and sustainable strategies in addressing the issues of energy shortages and environmental pollution,which has become a research *** dioxide(TiO_(2))-based PC and PEC are the most promising sustainable technologies for advanced oxidation *** to its inherent characteristics,including high oxidation ability,low price,and stability,TiO_(2)photocatalyst has been widely studied and used in different scales for numerous *** practical applications in these areas,the engineering of the photocatalysts and the design of the PC and PEC devices must be both environmentally and economically *** the one hand,for the engineering of the photocatalysts,the photocatalyst shall be able to deliver the following characteristics,including large specific surface area,high absorption of light,rapid and low-cost separation and regeneration,and high *** the other hand,the design of the PC and PEC devices shall facilitate high in energy utilization and catalytic efficiency,and low in building and operational *** work covers the reaction mechanism of TiO_(2)-based PC and PEC technologies,sustainable design,and preparation of TiO_(2)photocatalysts as well as sustainable design in PC and PEC devices for wastewater treatment,sensing,and water ***,we provide some critical perspectives on the future development of TiO_(2)-based PC and PEC technology.

关键词： Photocatalysis Photoelectrocatalysis TiO_(2) Bandgap Morphology engineering Sustainable design