Key Laboratory of Advanced Textile Composite Materials

Tianjin, China

Key Laboratory of Advanced Textile Composite Materials

Tianjin, China
SEARCH FILTERS
Time filter
Source Type

Liu H.,Tianjin Polytechnic University | Liu H.,Key Laboratory of Advanced Textile Composite Materials | Zhu L.-L.,Tianjin Polytechnic University | He Y.,Tianjin Polytechnic University | Cheng B.-W.,Tianjin Polytechnic University
Materials and Design | Year: 2017

A novel and environment-friendly method was presented for fabricating silver plating polyurethane filaments (SPPFs) with high conductivity and excellent elasticity. An adherent polydopamine film was coated on the surface of polyurethane filaments (PFs) by in-situ polymerization reaction of dopamine. Subsequently, the some silver particles and silver plating were reduced on the surface of PFs by in-situ reduction of polydopamine and glucose in turn. The silver particles could be combined on the surface of filaments by the catechol groups of polydopamine. Experimental results show the electrical resistivity of SPPFs can reach the minimum value of 4.5 ± 0.1 Ω/cm, when the concentration of silver nitrate and dopamine are, respectively, 55 g/L and 3 g/L. The loss of the breaking strength and breaking elongation are, respectively, 5% and 11.9%. The nonlinearity error and the hysteresis of SPPF strain sensor are, respectively, less than 29.3% and 34.3%. The stretchable flexible SPPFs with high conductivity and excellent elasticity have wide application prospect in many fields, such as wearable electronics, antibacterial, smart textiles, smart garments, and so forth. © 2016 Elsevier Ltd


Li Y.,Tianjin Polytechnic University | Liu H.,Tianjin Polytechnic University | Li X.,Tianjin Polytechnic University | Li X.,Key Laboratory of Advanced Textile Composite Materials
AIP Conference Proceedings | Year: 2017

Thermal-electrical properties and resistance stability of silver yarns was researched to evaluate the performance be a heating element. Three samples of silver coated yarns with different linear density and electrical resistivity, which obtained by market. Silver coated yarns were placed at the high temperature condition for ageing. The electrical resistances of yarns were increased with the ageing process. The infrared photography instrument was used to measurement the temperature variation of silver coated yarns by applied different current on. The result shows that the temperature rise with the power increases. © 2017 Author(s).


Han X.,Tianjin Polytechnic University | Han Z.,Tianjin Polytechnic University | Han Z.,Key Laboratory of Advanced Textile Composite Materials | Zhao J.,Tianjin Polytechnic University | And 3 more authors.
New Journal of Chemistry | Year: 2017

A novel type of photocatalyst for formaldehyde removal in an indoor environment was prepared by supporting Fe(iii) on amidoximated polyacrylonitrile (PAN) nonwoven fabrics. The synthesized catalyst was characterized using SEM, FT-IR, XPS, DRS and XRD analyses. Fe(iii) was anchored on the amidoximated PAN nonwoven fabrics through coordination bonds with both hydroxyl and amino functionality in the amidoxime groups. The ligand of Fe(iii) played a crucial role in activating molecular oxygen under visible irradiation to effectively degrade formaldehyde. The PAN nonwoven fabrics were better Fe(iii) support materials than PAN yarns to prepare the photocatalysts. The variation of the initial concentrations of formaldehyde and water significantly affects the formaldehyde degradation. The recycled catalyst exhibited only a slight decrease in photocatalytic activity after four successive runs. © 2017 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.


Yu L.-H.,Tianjin Polytechnic University | Wang R.,Tianjin Polytechnic University | Wang R.,Key Laboratory of Advanced Textile Composite Materials | Xu L.,Tianjin Polytechnic University | Tao Q.,Tianjin Polytechnic University
Journal of Materials Science: Materials in Electronics | Year: 2016

Novel multi-walled carbon nanotubes (MWCNTs) and copper phthalocyanine (CuPc) modified conductive silver-plated fiber (MCA-fiber) was successfully prepared via chemical liquid deposition method with polyester as soft template. The structures and morphologies were characterized by X-ray photoelectron spectroscopy and field emission scanning electron microscopy. The binding energy of oxygen and carbon are 543, 296 eV respectively and the SEM images show CuPc and MWCNTs are deposited on the surface of silvered fiber continuously. The MCA-fiber is about 75 μm in diameter. The effect of process conditions on the properties of MCA-fiber was investigated. With the increasing of the concentration of AgNO3, the coating amount and electrical conductivity first increase and then decrease. The decrease of MWCNTs can bring down the electrical conductivity, but can improve the coating amount of materials on the surface of fibers. There is a sharp decrease from 7.20 × 10−4 to 1.33 × 10−4 s/cm when the MWCNT-doping content is 20 %. When the doping ratio of MWCNTs and CuPc is 2:8, the coating amount rises to 19.2 %. The mechanism study on the photovoltaic properties of MCA-fiber verifies that it can be used in fiber-shaped solar cells. © 2015, Springer Science+Business Media New York.


Zhou X.-H.,Tianjin Polytechnic University | Kang W.-M.,Tianjin Polytechnic University | Xu W.,Tianjin Polytechnic University | Cheng B.-W.,Tianjin Polytechnic University | Cheng B.-W.,Key Laboratory of Advanced Textile Composite Materials
RSC Advances | Year: 2015

Flexible hollow CeO2/Al2O3 fibers were successfully prepared, for the first time, by a coaxial electro-blowing spinning technique. The diameter of these fibers could be controlled by adjusting spinning parameters. Upon sintering the as-spun fibers at 600 °C, flexible hollow CeO2/Al2O3 fibers were obtained with continuous morphologies. Their microstructure was characterized by scanning electron microscopy (SEM), X-ray photoelectron spectra (XPS), X-ray diffraction (XRD) and specific surface area (BET). A dye removal experiment was evaluated from the adsorption efficiency of Methyl Orange (MO) in aqueous solution. They exhibited strong adsorption capacity for MO molecules in dark conditions and were easily separated by simple filtration, thus showing promise for application in wastewater treatment and environmental purification. © 2015 The Royal Society of Chemistry.


Liu Y.,Tianjin Polytechnic University | Zhao X.,Tianjin Polytechnic University | Zhao X.,Key Laboratory of Advanced Textile Composite Materials
Fibres and Textiles in Eastern Europe | Year: 2016

In this paper, the influence of fabric structure, weft density, end spacing and yarn fineness on the dielectric constant of polyester woven fabrics was studied. The results show that at low frequencies, the dielectric constant of fabric was clearly affected by the processing parameters; when the organisation of the fabric is plain i.e. the warp density is 140/10 cm, weft density 140/10 cm and yarn linear density 32 tex, the absorbing performance of polyester woven fabrics is at its best. At higher frequencies, the effect of the varying parameters on the dielectric constant of the fabrics can be neglected. Polyester woven fabrics have better EM absorbing properties for these parameters. This study offers a new theoretical basis for the development of EM absorptive fabrics. © 2016, Institute of Biopolymers and Chemical Fibres. All rights reserved.


Han Z.,Tianjin Polytechnic University | Han Z.,Key Laboratory of Advanced Textile Composite Materials | Han X.,Tianjin Polytechnic University | Zhao X.,Tianjin Polytechnic University | And 3 more authors.
Journal of Hazardous Materials | Year: 2016

Iron(II) phthalocyanine was immobilized onto amidoximated polyacrylonitrile fiber to construct a bioinspired catalytic system for oxidizing organic dyes by H2O2 activation. The amidoxime groups greatly helped to anchor Iron(II) phthalocyanine molecules onto the fiber through coordination interaction, which has been confirmed by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and UV–vis diffuse reflectance spectroscopy analyses. Electron spin resonance studies indicate that the catalytic process of physically anchored Iron(II) phthalocyanine performed via a hydroxyl radical pathway, while the catalyst bonded Iron(II) phthalocyanine through coordination effect could selectively catalyze the H2O2 decomposition to generate high-valent iron-oxo species. This may result from the amidoxime groups functioning as the axial fifth ligands to favor the heterolytic cleavage of the peroxide [Formula presented] bond. This feature also enables the catalyst to only degrade the dyes adjacent to the catalytic active centers and enhances the efficient utilization of H2O2. In addition, this catalyst could effectively catalyze the mineralization of organic dyes and can be easily recycled without any loss of activity. © 2016 Elsevier B.V.


Liu Y.,Tianjin Polytechnic University | Zhao X.,Tianjin Polytechnic University | Zhao X.,Key Laboratory of Advanced Textile Composite Materials | Tuo X.,Tianjin Polytechnic University
Journal of the Textile Institute | Year: 2016

Polypyrrole-coated cotton conductive fabrics were prepared by in situ polymerization. The influences of pyrrole dosage, mole ratio of pyrrole to iron (III) chloride, reaction temperature and reaction time on the conductivity of the polypyrrole-coated cotton conductive fabrics were analyzed. The best method for preparing the polypyrrole-coated cotton conductive fabrics was determined. The structures of the conductive cotton fabrics were characterized with Fourier transform infrared spectroscopy and scanning electron microscopy. The results showed that when mo1e ratio of pyrrole to iron (III) chloride was 2:1, reaction at room temperature for 1 h with a bath ratio of 1:40, the conductivity of the prepared fabric was the best with a surface resistance of 0.15 kΩ/cm. The chemical structure and the surface morphological structures of the conductive cotton fabrics were different from that of the untreated cotton fabrics. By in situ polymerization, the fiber surfaces appeared homogeneously coated with a film of polypyrrole. Importantly, the process of pyrrole polymerization is very simple. This study offers a new simple way for preparing the polypyrrole-coated cotton conductive fabrics effectively. © 2016 The Textile Institute


Yu L.-H.,Tianjin Polytechnic University | Wang R.,Tianjin Polytechnic University | Wang R.,Key Laboratory of Advanced Textile Composite Materials | Xu L.,Tianjin Polytechnic University
Materials Letters | Year: 2016

Hybrid thin films based on multi-walled carbon nanotubes (MWCNTs) and acylamino copper phthalocyanine (AM-CuPc) were prepared with oxygen plasma treatment technology. The effect of doping ratio on the photoelectric property of the films was investigated. The structure and morphology were characterized by Fourier transformed infrared spectrometer (FTIR) and field emission scanning electron microscopy (FESEM). The functional composites exhibited excellent dispersing property and the covalent bonds were formed between MWCNT and AM-CuPc. The UV-vis absorption spectra showed the absorbility was improved. In addition, the band gap was affected by the doping ratio and it was minimum of 1.63 eV when the MWCNT-doping content was 40%. It will supply a new way to synthetize solar energy materials with different band gap. © 2015 Elsevier B.V. All rights reserved.


Li J.,Tianjin Polytechnic University | Li J.,Key Laboratory of Advanced Textile Composite Materials | Liu H.,Tianjin Polytechnic University | Liu H.,Key Laboratory of Advanced Textile Composite Materials | And 3 more authors.
Measurement: Journal of the International Measurement Confederation | Year: 2012

Pressure comfort is an important part of garment comfort evaluation, in this paper, a low cost portable pressure measurement system (PPMS) are developed for measuring pressure distribution on garment. Three sets of different size knitted garments are fabricated for investigating the pressure distribution on a mannequin and on young female volunteers. Experimental results show curvature radius of points on the mannequin are smaller, pressures are larger which is consistent with the pressure calculation equation. Pressure distribution state on human body is different from that on mannequin due to size and shape difference even if the same garments were utilized. Dynamic pressure measurement on human body shows the pressure variations on points of human body. However, the static and dynamic pressure data can be utilized for improving quality of garments and helping design of garments. © 2012 Elsevier Ltd. All rights reserved.

Loading Key Laboratory of Advanced Textile Composite Materials collaborators
Loading Key Laboratory of Advanced Textile Composite Materials collaborators