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RISS 인기검색어
- 검색키워드
- 저자 : Shaojuan Chen (검색결과 6 건)
- 무료
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The Application of Atmospheric Plasma for Cotton Fabric Desizing
Xuemei Wang,Hongmei Zhao,Fuxing Chen,Xin Ning,Shaojuan Chen,Qunli Guan,Shouxiang Jiang,Dagang Miao 한국섬유공학회 2019 Fibers and polymers Vol.20 No.11
Production process of cotton fabric involves numerous water and chemical consumptions, causing serious energywaste and environmental problem. In this study, a waterless atmospheric plasma treatment (APT) was applied on cottonfabric to desize the starch coated in the weaving process. Plasma parameters, i.e., plasma voltage, plasma duty cycle andoxygen flow rate, are varied in order to systematically evaluate their influence on fabric physical properties such as theimpurity removal, whiteness, capillary effect, tensile strength and breaking elongation of fabric. Optimal plasma parametersfor oxygen APT were determined, with plasma voltage of 320 V, plasma duty cycle of 60 % and oxygen flow rate of 1000 l/h. The APT desizing method attained comparable fabric performances with the traditional amylase desizing method. The resultswere further supported by the scanning electron microscope (SEM) and Fourier transfer infrared spectroscopy (FTIR)investigations.
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Study on Spinnability of PP/PU Blends and Preparation of PP/PU Bi-component Melt Blown Nonwovens
Yanfen Zhou,Liang Jiang,Huiying Jia,Xiaolu Xing,Zhenhua Sun,Shaojuan Chen,Jianwei Ma,Stephen Jerrams 한국섬유공학회 2019 Fibers and polymers Vol.20 No.6
Melt blown polymer blends offers a good way to combine two polymers in the same fiber generating nonwovenswith new and novel properties. In this study, polypropylene (PP) and polyurethane (PU) were blended to prepare PP/PU bicomponentmelt blown nonwovens. The spinnability of PP/PU composites was investigated and PP/PU bi-componentnonwovens with compositions of 95/5, 90/10, 80/20 and 70/30 were prepared by using the melt blowing technique. The meltblown fibers exhibited a ‘sea-island’ structure with PP as the continuous phase and PU as the dispersed phase. When thecontent of PU in the blend was above 40 %, PP/PU melt blown nonwovens could not be produced due to fiber breaking. ForPP/PU (90/10) nonwovens, it was found that the average fiber diameter decreased with increasing die to collector (DCD) andelevated hot air pressure.
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Crosslinked Ionic Alginate and Cellulose-based Hydrogels for Photoresponsive Drug Release Systems
Fang Zhou,Shaohua Wu,Chris Rader,Jianwei Ma,Shaojuan Chen,Xiaoyan Yuan,E Johan Foster 한국섬유공학회 2020 Fibers and polymers Vol.21 No.1
In this work, photosensitive alginate and cellulose-based hydrogels with interpenetrating polymer networks weresuccessfully prepared from alginate, TEMPO-oxidized cellulose nanofibers (TEMPO-CNFs) and polyacrylamide,crosslinked by both Fe3+ and N,N'-methylenebis-acrylamide. The obtained hydrogels showed a clear relationship between themechanical properties and the content of the TEMPO-CNFs. The results indicated that the mechanical properties ofcrosslinked hydrogels were enhanced with the mass ratio of TEMPO-CNFs and alginate increased from 1/2 to 2. Moreover,the crosslinked ionic alginate and cellulose-based hydrogels with various TEMPO-CNFs contents exhibited aninterconnected porous morphology with an average pore size of ca. 130 μm, and demonstrated an increased cumulativerelease amount of BSA drugs under the ultraviolet irradiation. This study demonstrated that the as-prepared photoresponsivehydrogels would have a potential application as local drug release systems for wound dressings.
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Zhiqing Jiang,Liang Jiang,Huiying Jia,Yanfen Zhou,Jianwei Ma,Shaojuan Chen 한국섬유공학회 2018 Fibers and polymers Vol.19 No.8
The surface of polytetrafluoroethylene (PTFE)-fiberglass composite film was modified with polydopamine (PDA) in order to improve hydrophilic properties and hence to expand its perspective usage for biomedical and blood-contacting applications. Scanning electron microscopy, atomic force microscopy, energy dispersive spectrometer and fourier transform infrared spectra were employed to analyse the surface morphology and the chemical structures of the modified PTFEfiberglass composite films. Hydrophilic property of PTFE-fiberglass composite films was investigated by using water contact angle measurement. The effect of treatment time on the surface morphology and hydrophilicity of PTFE-fiberglass composite films was investigated. The results showed that a dense layer of PDA was formed on PTFE-fiberglass composite films, the water contact angle decreased gradually with the increase in modification time. Moreover, the fastness of PDA layers deposited on the PTFE-fiberglass composite films was studied by using UV/VIS/NIR spectrometer. It was revealed that the PDA layer was stable in distilled water, 0.1 M hydrochloric acid solution and alcohol, but had a poor resistance to 0.1 M sodium hydroxide solution.
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Biocompatible Gradient Chitosan Fibers with Controllable Swelling and Antibacterial Properties
Shangpeng Liu,Yi Yu,Shasha Jiang,Jiwei Li,Shuang Wang,Shaojuan Chen,Jianwei Ma 한국섬유공학회 2022 Fibers and polymers Vol.23 No.1
This study developed a partially water-soluble carboxymethyl chitosan (PWCS) fibers by ethanol-waterexhaustion method. Sodium carboxylate was successfully introduced into chitosan fibers, as evidenced by FTIR, whichenhanced natural chitosan water solubility. SEM-EDS revealed that the sodium carboxylate groups presented in a gradientdistribution from the exterior to the interior of the PWCS fibers, which leads to a controllable swelling performance. Moreover, the PWCS fibers had excellent antibacterial ability against S. aureus and E. coli bacteria comparing with origin CSfibers. The cytotoxicity assay (CCK-8) and fluorescence staining confirmed that all developed samples showed non-toxicitytowards MRC-5 and exhibited a surprising promoting effect on cell proliferation, corroborating their biocompatibility. Besides, due to its excellent controllable water selling ability and protonated amine groups, the PWCS fibers possessed anefficient hemostatic performance. In conclusion, PWCS fibers could become a promising material in hemostatic and woundhealing applications.
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Naxin Sun,Huiping Liu,Xiaowei Zhang,Hongni Wang,Shaojuan Liu,Pei Chen,Weijie Yu,Kai Liu 한국축산식품학회 2018 한국축산식품학회지 Vol.38 No.2
To shorten the production cycle of Zaodan, this study first pickled Zaodan by a novel technology -vacuum decompression technology. Vacuum decompression technology could reduce the pickling time of Zaodan from 20wkto about 9wk.The protein content, moisture and pH of the Zaodan egg white gradually decreased with a concomitant increase in salt during the pickling process. The total sulfhydryl group (SH) group content of the egg white proteins was increased to 2.43×10-3mol/L after being pickled for 30 d, whereas the content of disulphide bonds (SS) was reduced to 23.35×10-3mol/L. The surface hydrophobicity was lowest after pickling for 30 d. In addition, great changes occurred in the secondary structure of the egg white proteins after pickling for 20 d. The disappearance of ovomucin was noticeable based on sodium dodecyl sulfate-polyacrylamide gel electrophoresis analysis.
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