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Comparison and Analysis of Fabric Deodorization Test Methods

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Journal of Donghua University(English Edition) 2012年第3期29卷 268-271页

作者：魏孟媛薛文良陆维民马洁陈智菲 Shanghai Entry-Exit Inspection and Quarantine Bureau engineering research center of Technical textiles Ministry of EducationDonghua University

The test methods of deodorization fabric are studied in daily life. In view of different deodorization fabrics and source gases,the detector tube method and gas chromatography-flame ionization detector ( GC-FID ) method were chosen to test the deodorizing rates of fabric and the influencing factors on deodorization test were discussed. Through the two methods,the residual concentration of odorous substance after adsorption can be measured,and the deodorizing rates of deodorization fabric can be got by calculation. The results show that the two test methods are both appropriate for deodorization test of fabric.

关键词： deodorization fabric deodorizing rate detector tube gas chromatoeraphy-flame ionization detector (GC-FID)

MXene@Co hollow spheres structure boosts interfacial polarization for broadband electromagnetic wave absorption

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Journal of Materials Science & Technology 2024年第9期176卷 167-175页

作者： Yan Zhang Xuehua Liu Zhiqiang Guo Chenyu Jia Feng Lu Zirui Jia Guanglei Wu Institute of Materials for Energy and Environment State Key Laboratory of Bio-fibers and Eco-textilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China Technical center of Qingdao Customs Qingdao 266002China College of Chemistry and Chemical engineering Qingdao UniversityQingdao 266071China

MXene is considered as a candidate for preparing high-performance electromagnetic wave absorbing materials due to its large specific surface area,rich surface modification groups,and unique metal ***,the impedance matching problem caused by its high conductivity and easy stacking properties is a limiting *** this study,a self-assembling-etching-anchoring growth method was proposed to prepare MXene@Co electromagnetic wave absorbing *** hollow structure of MXene microspheres constructed with PMMA as a hard template is conducive to optimizing impedance matching and surface *** addition,MXene@Co exhibits abundant heterogeneous interfaces,enhancing the interfacial polarization phenomenon during electromagnetic wave ***,the surfaceanchored growth of magnetic Co particles forms a magnetic network,which provides a strong magnetic loss capability for the *** hollow structure design significantly enhances the wave absorption performance compared to conventional MXene@Co composites,with a minimum reflection loss of−57.32 dB(effective absorption bandwidth of 5.2 GHz)when the thickness is 2.5 mm(2.2 mm).This work provides a meaningful reference for the design of MXene-based electromagnetic wave absorbing materials.

关键词： MXene@Co microspheres Hollow structure Impendance matching Electromagnetic wave absorption

Investigations into the Anti-Felting Properties of Sputtered Wool Using Plasma Treatment

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Plasma Science and Technology 2013年第1期15卷 37-42页

作者： S. M. BORGHEI S. SHAHIDI M. GHORANNEVISS Z. ABDOLAHI Department of Physics Karaj Branch Islamic Azad University Department of textiles Faculty of Engineering Arak Branch Islamic Azad University Plasma Physics research center Science and Research Branch Islamic Azad University

In this research the effects of mordant and plasma sputtering treatments on the crystallinity and morphological properties of wool fabrics were investigated. The felting behavior of the treated samples was also studied. We used madder as a natural dye and copper sulfate as a metal mordant. We also used copper as the electrode material in a DC magnetron plasma sputtering device. The anti-felting properties of the wool samples before and after dying was studied, and it was shown that the shrink resistance and anti-felting behavior of the wool had been significantly improved by the plasma sputtering treatment. In addition, the percentage of crystallinity and the size of the crystals were investigated using an X-ray diffractometer, and a scanning electron microscope was used for morphological analysis. The amount of copper particles on the surface of the mordanted and sputtered fabrics was studied using the energy dispersive X- ray （EDX） method, and the hydrophobic properties of the samples were examined using the water drop test. The results show that with plasma sputtering treatment, the hydrophobic properties of the surface of wool become super hydrophobic.

关键词： anti-felting wool plasma mordant sputtering

Superior triethylamine-sensing properties based on SnO2 hollow nanospheres synthesized via one-step process

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Progress in Natural Science:Materials International 2024年第4期34卷 682-689页

作者： Mingyue Xu Shu Yan Zia Ur Rehman Jianhua Hou Liangyun Zhai Shengjie Zhu Chuanbao Cao Wanfeng Xie Junyu Zhong Jun Yang State Key Laboratory of Bio-fibers and eco-textiles School of Electronics and Information College of Materials Science and Engineering College of Chemistry and Chemical Engineering Qingdao University College of Environmental Science and engineering Yangzhou University State Key Laboratory of Chemical Safety SINOPEC Research Institute of Safety Engineering Co. Ltd. National Registration center for Chemicals Ministry of Emergency Management research center of Materials Science Beijing Institute of Technology State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences

Due to serious harm of triethylamine（TEA） to environmental safety and human health, it is significant to synthesize gas-sensitive materials with high performance for TEA detection. However, it is still a challenge to achieve high-sensitivity detection of TEA at low temperature for a sensor synthesized through an economical and efficient method. In this work, hollow-structured SnO2（HS-SnO2） nanospheres have been fabricated by a facile, low-cost hydrothermal method in one step, which exhibit superior TEA-sensing properties, including not only ultrahigh response（127.75） for 100 ppm TEA, good selectivity, but also fast response and recovery time（17/28 s）, low detection threshold（1 ppm） and robust stability at a relatively low optimum operational temperature of 225°*** excellent gas-sensitizing performances are ascribed to porous hollow structures with rich oxygen vacancies that provide abundant active sites for raising O2adsorption and reaction of TEA and oxygen species. This work offers an effective and economical strategy for fabricating high-performance TEA sensors for industrial applications.

关键词： Hollow-structured SnO2 nanospheres TEA High response Gas sensors

Crystal Structure, Stability and Dissolution of a Drug-drug Molecular Salt Hydrate of Berberine with Protocatechuic Acid

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Inimitable 3D pyrolytic branched hollow architecture with multi-scale conductive network for microwave absorption

结构化学 2018年第3期 400-406页

作者： ZHANG Yan-Jie LOU Ben-Yong HUANG Ya-Li ZHANG Mei LIN Qi Department of Chemical engineering and Materials，Ocean College，Minjiang University engineering research center of Green dyeing and finishing in Fujian Provincial University

A drug-drug molecular salt hydrate of berberine and protocatechuic acid has been *** acid lost its carboxylic proton and turned to be protocatechuic anion to form a 1:1:1 organic salt hydrate with berberine,[C20H18NO4]+[C7H5O4]-?H2O（1）.Compound1 crystallizes in the triclinic system,space group P1 with a = 7.9849（5）,b =10.5437（5）,c = 14.3621（5）?,α = 77.983（4）,β = 82.900（4）,γ = 78.024（4）o,V = 1152.82（10） ?3,Mr= 507.48,Dc= 1.462 g/cm3,μ = 0.929 mm-1,F（000） = 532,Z = 2,the final R = 0.0488 and w R = 0.1322 for 3993 reflectionswith I > 2σ（I）.The hydrate exhibited good solid state stability against humidity,which may result from strong hydrogen-bonding interactions between water molecules and carboxylate *** hydrate also exhibited acceptable solubility and dissolution rate.

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Journal of Materials Science & Technology 2024年第6期173卷 170-180页

作者： Jiajun Li Qianqian Zhu Jiahui Zhu Yuhang Cheng Zirui Jia Feng Lu Chao Wang Guanglei Wu Institute of Materials for Energy and Environment State Key Laboratory of Bio-fibers and Eco-textilesCollege of Materials Science and EngineeringQingdao UniversityQingdao266071China College of Chemistry and Chemical engineering Qingdao UniversityQingdao266071China Technical center of Qingdao Customs Qingdao266002China

To solve the electromagnetic pollution problem,the reasonable structure design and component control of the electromagnetic absorber is *** this work,three-dimensional(3D)pyrolytic branched hollow architecture carbon PBHAC/MoS_(2)composites were prepared via a hydrothermal and calcination two-step *** narrow-gap nano-size MoS_(2)acquired after vulcanization and micro-size 3D branched carbon skeleton PBHAC possess intensified conduction ***,the presence of potential differences between different phases creates a space charge region at the heterogeneous interface,resulting in strong interfacial *** resulting 3D branched hollow PBHAC/MoS_(2)composites exhibit optimized impedance matching and multiple loss ***,the 3D branched hollow carbon PBHAC/MoS_(2)composites have the best electromagnetic wave(EMW)absorption *** minimum reflection loss(RLmin)is-57.8 dB at 1.93 mm and the maximum effective absorption bandwidth(EAB_(max))is 6.08 GHz at 2 mm,which indicates the excellent EMW absorption performance of the ***,this composite is expected to be a microwave absorber with the characteristics of“thin,light,wide,and strong”.

关键词： Dielectric loss MoS_(2) Impedance matching Schottky barrier Microwave absorption

Fibrous MXene Aerogels with Tunable Pore of Contaminated Seawater

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Nano-Micro Letters 2023年第5期15卷 298-312页

作者： Fan Wu Siyu Qiang Xiao-Dong Zhu Wenling Jiao Lifang Liu Jianyong Yu Yi-Tao Liu Bin Ding Innovation center for Textile Science and Technology College of TextilesDonghua UniversityShanghai 201620People’s Republic of China State Key Laboratory Base of eco-Chemical engineering College of Chemical EngineeringQingdao University of Science&TechnologyQingdao 266042People’s Republic of China

The seawater desalination based on solardriven interfacial evaporation has emerged as a promising technique to alleviate the global crisis on freshwater ***,achieving high desalination performance on actual,oil-contaminated seawater remains a critical challenge,because the transport channels and evaporation interfaces of the current solar evaporators are easily blocked by the oil slicks,resulting in undermined evaporation rate and conversion ***,we propose a facile strategy for fabricating a modularized solar evaporator based on flexible MXene aerogels with arbitrarily tunable,highly ordered cellular/lamellar pore structures for high-efficiency oil interception and *** core design is the creation of 1D fibrous MXenes with sufficiently large aspect ratios,whose superior flexibility and plentiful link forms lay the basis for controllable 3D assembly into more complicated pore *** cellular pore structure is responsible for effective contaminants rejection due to the multi-sieving effect achieved by the omnipresent,isotropic wall apertures together with underwater superhydrophobicity,while the lamellar pore structure is favorable for rapid evaporation due to the presence of continuous,large-area evaporation *** modularized solar evaporator delivers the best evaporation rate(1.48 kg m-2h-1)and conversion efficiency(92.08%)among all MXene-based desalination materials on oil-contaminated seawater.

关键词： Fibrous MXene aerogels Tunable pore structures Modularized solar evaporator Photothermal desalination

Three-dimensional macroscopic absorbents: From synergistic effects to advanced multifunctionalities

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Nano research 2024年第3期17卷 1952-1983页

作者： Shijie Zhang Di Lan Xingliang Chen Yueyuan Gu Junwen Ren Suxuan Du Shichang Cai Xiaomiao Zhao Zhiwei Zhao Guanglei Wu School of Material Science and engineering Henan University of TechnologyZhengzhou 450001China School of Materials Science and engineering Hubei University of Automotive TechnologyShiyan 442002China Key Laboratory of Clean dyeing and finishing Technology of Zhejiang Province Shaoxing UniversityShaoxing 312000China School of Resources Environment and Safety engineering University of South ChinaHengyang 421001China College of Electrical engineering Sichuan UniversityChengdu 610065China Institute of Materials for Energy and Environment State Key Laboratory of Bio-fibers and Eco-textilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China Key Laboratory of engineering Dielectrics and Its Application Ministry of EducationSchool of Electrical&Electronic EngineeringHarbin University of Science and TechnologyHarbin 150080China

The accelerated arriving of 5G era has brought a new round of intelligent transformation which will completely emancipate smart terminal *** the subsequent deleterious effect of electromagnetic wave on electronic devices is increasingly serious,driving the growth of next-generation electromagnetic wave *** a tactful combination of components and structures,three-dimensional(3D)macroscopic absorbents with fascinating synergy afford exceptional electromagnetic wave absorption,and tremendous efforts have been devoted to this ***,in terms of macroscopic absorbents and their synergistic effect,few reviews are proposed to comb the latest achievements and detailed *** review article focuses on the synergistic effect of macro-architectured absorbents mainly including structure-induced synergy,structure-components synergy,and multiple-components induced *** then the potential construction principles and strategies of macroscopic absorbents are ***,the key information for structures and components manipulation including nano-micro design and components regulation is further dissected by critically selected cutting-edge 3D macroscopic ***,a brief summary of multifunctional electromagnetic wave absorbents(EWAs)-based macroscopic structures is ***,the development prospects and challenges of these materials are discussed.

关键词： three-dimensional(3D)structures synergistic effect electromagnetic wave absorption absorption mechanism multifunction

Facile and Large-scale Fabrication of Biodegradable Thermochromic Fibers Based on Poly(lactic acid)

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Chinese Journal of Polymer Science 2022年第10期40卷 1242-1251,I0010页

作者： Xiao-Xiong Chen Jin-Chao Yu Kang Chen Peng Ji Xiang-Ling Chen Zhi-Juan Pan College of Textile and Clothing engineering Soochow UniversitySuzhou 215123China engineering research center of Technical textiles Ministry of EducationDonghua UniversityShanghai 201620China College of Materials and textiles and National engineering Laboratory for Textile Fiber Materials and Processing Technology Zhejiang Sci-Tech UniversityHangzhou 310018China Co-Innovation center for Textile Industry Donghua UniversityShanghai 201620China

To investigate the feasibility of developing biobased and biodegradable thermochromic fibers,poly(lactic acid)(PLA)fibers with visual temperature indicator functionality were fabricated using a scalable melt spinning technique(spinning speed 800 m/min),where PLA and thermochromic microcapsules were used as fiber-forming polymers and color indicators,*** effect of thermochromic microcapsules on the mechanical properties and reversible color-changing function of PLA fibers was systematically investigated to achieve high tenacity and sensitive color-changing *** difference in the fiber performance was connected to changes in the multilayer *** results show that PLA fibers exhibit excellent tenacity of 3.7-4.7 cN/dtex and reversible and stable thermochromic behavior over 31℃.The high fraction of mesophase within TPLA-1 fiber plays an important role in its ***,the low-concentration of microcapsules(~1 wt%)with good dispersion could act as a nucleating agent inside the PLA matrix and contribute to the formation of microcrystals in the amorphous between primary lamellae,which is also beneficial to maintain the tenacity of the *** agglomeration of high-concentration microcapsules within PLA fibers hampered the formation of mesophase,resulting in a decrease in fiber *** from the content of microcapsules,the agglomeration of high-concentration microcapsules(>5 wt%)is the main reason that limits the substantial increase in fiber color *** study opens up new possibilities for degradable thermochromic fibers produced using standard industrial spinning technology.

关键词： Poly(lactic acid)fiber Reversible thermochromic fiber Biodegradable Melt spinning