Peng Xi

Tianjin Polytechnic University

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Bowen Cheng

Tianjin University of Science and Technology

Lei Xia

Tianjin Polytechnic University

Xiaohua Gu

Donghua University

Dengkun Shu

Tianjin University of Science and Technology

Fulai Zhao

Tianjin University

Chaohua Wang

Sichuan University

Xiaohua Gu

Guilin University of Aerospace Technology

Zongren Li

Chinese PLA General Hospital

Congcong Li

Lanzhou University of Technology

Huang Xiang-an

Donghua University

Cooperative Institutions

Tianjin Polytechnic University

Chinese Academy of Sciences

Donghua University

Nanjing Normal University

Huazhong University of Science and Technology

Peking University

Jilin University

Tianjin University of Science and Technology

University of Chinese Academy of Sciences

Changchun Institute of Applied Chemistry

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Luminescence and Anti-Counterfeiting Functions of the Novel Benzoate Eu(Iii) Complexes with Multiple Excitation Properties

Chaohua Wang Peng Xi Jinyuan Yan Bowen Cheng

10.2139/ssrn.5014535

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Citations (0)

Preparation and low-temperature gas-sensing properties of SnO2 ultra-fine fibers fabricated by a centrifugal spinning process

Journal of Sol-Gel Science and Technology (2016)

Wei Xu Lei Xia Jingge Ju Peng Xi Bowen Cheng

10.1007/s10971-016-3962-y

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Citations (15)

High efficiency fabrication of ultrahigh molecular weight polyethylene submicron filaments/sheets by flash-spinning

Journal of Polymer Engineering (2015)

Lei Xia Peng Xi Bowen Cheng

Abstract In this study, we propose a novel method for preparing continuous ultrahigh molecular weight polyethylene (UHMWPE) filaments by flash-spinning. The filaments were processed by calendaring to obtain the sheets. The morphology of the filaments and the sheets, the forming process, the optimal fabrication conditions, mechanical properties, spinning speed, and the rate of spinning of the filaments were investigated. The results showed that the filaments were composed of bunches of microfibers and the diameter of the filaments and the microfibers ranged from 0.15 mm to 0.22 mm and 0.2 μm to 5 μm, respectively. For a given concentration of 5 wt% of the UHMWPE, optimal specimens were obtained only when the temperature was in the range 150–210°C and the pressure was in the range 8–20 MPa. The spinning speed and the polymer consumption increased with enhancement in the pressure and the value reached as high as 47.2 m/s and 116.7 g/min, respectively. The properties and the spinning efficiency of the filaments revealed that flash-spinning is a potential method for manufacturing commercial products in various fields of application.

Microfiber

Melt spinning

10.1515/polyeng-2015-0022

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Hollow carbon microfibres fabricated using coaxial centrifugal spinning

Micro & Nano Letters (2016)

Wei Xu Lei Xia Xinghai Zhou Peng Xi Bowen Cheng

A novel method for preparing coaxial polyacrylonitrile (PAN)/polyvinyl pyrrolidone (PVP) microfibres is proposed. Further, the obtained composite fibres are subsequently processed using pre‐oxidation and carbonisation treatments in order to obtain hollow carbon microfibres. The effects of different respective PVP and PAN concentrations in the inner and outer solutions (the solutions injected into the inner and outer centrifugal tubes, respectively) on the product morphology are discussed. It is found that hollow carbon microfibres can only be fabricated for concurrent inner PVP and outer PAN solution concentrations of 14–17 and 13–16 wt%, respectively. If either of the solution concentrations is too low, droplets are formed, whereas the spinneret becomes blocked and cannot spin if either of these concentrations is too high. The diameters of the coaxial fibres and hollow carbon fibres can be controlled between 3 and 10 μm. This novel coaxial centrifugal spinning strategy can potentially be applied in the rapid fabrication of coaxial and hollow fibres.

Coaxial

10.1049/mnl.2015.0346

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The Influence of Acrylic Acid Irradiation Grafting to the Hydrophilicity of Polypropylene Spunbonded Nonwovens

Advanced materials research (2012)

Lei Xia Peng Xi Bowen Cheng

The acrylic acid was used as hydrophilic agent, the graft copolyreaction of acrylic acid and polypropylene was occurred under electron beam irradiation to modify the hydrophilicity of the polypropylene spunbonded nonwovens. The influenced of acrylic acid concentration and the irradiation dose to the hydrophilic properties were studied. The results show that for a constant irradiation dose, when the acrylic acid concentration is between 2 % and 10% , the grafting rate and the hydrophilic properties of the polypropylene spunbond nonwovens is first increased and then decreased , and reaches a maximum at the 8%. For a constant acrylic acid concentration, when the irradiation dose is between 10kGy and 50kGy, the grafting rate and the hydrophilic properties of the polypropylene spunbond nonwovens is also first increased and then decreased , and reaches a maximum at the 40kGy. The breaking strength increased with the increasing of the grafting rate, but decreased with the increasing of the irradiation dose

Polypropylene

Acrylic acid

Acrylic resin

10.4028/www.scientific.net/amr.627.125

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Citations (4)

Synthesis and characterization of a novel solid-solid phase change luminescence material

Polymer International (2010)

Xiaohua Gu Peng Xi Bowen Cheng Niu Shu-qing

Abstract Because of the large energy storage and small temperature variation during the phase change process, phase change materials (PCMs) are attracting increasing attention. In this study, a novel solid–solid PCM was prepared by coordinating rare earth Eu 3+ ions to the carboxylate groups of a poly(ethylene glycol) (PEG) modified with two terephthalic acid groups. The structure and properties of the material were characterized using 1 H NMR, differential scanning calorimetry, infrared spectroscopy, gel permeation chromatograph and fluorescence spectroscopy. The coordination of Eu 3+ with the double‐carboxylated PEG material significantly improved both the enthalpy value of the phase change material and its light‐emitting properties. This paper describes the facile synthesis and characterization of a novel phase exchange luminescent Eu–PEG material. The light‐emitting characterizations show that this modified PEG material has both good phase change properties and excellent luminescent properties. Copyright © 2010 Society of Chemical Industry

10.1002/pi.2787

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Citations (17)

Application of Interactive and Opening Teaching Mode in Polymer Chemistry Teaching

Polymer Bulletin (2012)

Peng Xi

Chemistry Education

Mode (computer interface)

Source

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Citations (1)

Synthesis, characterization and luminescent properties of new highly luminescent organic ligand and complexes of trivalent rare earth

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy (2006)

Peng Xi Xiaohua Gu CaoFeng Chen YuXian He Huang Xiang-an

Proton NMR

10.1016/j.saa.2006.04.009

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Citations (27)

Preparation and characterization of P(AN/VAC)/clay based nanocomposites

Journal of Applied Polymer Science (2006)

Xiaohua Gu Peng Xi Yongtang Jia Ting Liu Xinyuan Shen

Abstract In this article, P(AN/VAC)/clay nanocomposites were prepared by an in situ polymerization and characterized by transmission electron microscopy, X‐ray diffraction, Fourier transform infrared spectroscopy, nuclear magnetic resonance, and differential scanning calorimetry. The results show that the P(AN/VAC)/clay exhibit a multilayered structure. The montmorillonite layers are totally exfoliated and distributed uniformly in the P(AN/VAC) matrix. The dimension stability and heat resistance property of P(AN/VAC)/clay are superior to those of P(AN/VAC) alone. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 703–706, 2006

10.1002/app.24355

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Sequence distribution, thermal properties, and crystallization studies of poly(trimethylene terephthalate‐co‐1,4‐cyclohexylene dimethylene terephthalate) copolyesters

Journal of Applied Polymer Science (2008)

Jian Yang Wengang Li Aifang Yu Peng Xi Huang Xiang-an

Abstract A series of novel poly(trimethylene terephthalate‐ co ‐1,4‐cyclohexylene dimethylene terephthalate) (PTCT) with various compositions were synthesized by melt polycondensation of 1,3‐propanediol, 1,4‐cyclohexanedimethanol and dimethyl terephthalate. The resulting copolyesters were characterized using 13 C and 1 H nuclear magnetic resonance. The average length of both trimethylene terephthalate (TT) and cyclohexylene dimethylene terephthalate (CT) sequences varies from 1 to 10, and the chain structure is statistically random. The crystallization was investigated using wide angle X‐ray diffractometer (WAXD) and differential scanning calorimeter. The WAXD patterns can be divided in two groups according to the composition: copolyesters with less than 35 mol % CT content exhibit PTT‐type lattice, and those with CT unit content higher than 42 mol % crystallize with the PCT‐type lattice. The crystallizability of CT sequence is higher than that of TT sequence. Thermodynamic analysis shows that the comonomer is excluded from the PTT‐type or PCT‐type crystal of the copolyesters. The thermal decomposition temperature of copolyesters increases with increasing CT content, and their thermal stability is improved as compared to that of PTT. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

Dimethyl terephthalate

Comonomer

Thermal Stability

Copolyester

10.1002/app.29340

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Citations (11)