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首页> 外文期刊>RSC Advances >Electrospun nanofibrous composites of polystyrene and cellulose nanocrystals: manufacture and characterization
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Electrospun nanofibrous composites of polystyrene and cellulose nanocrystals: manufacture and characterization

机译：聚苯乙烯和纤维素纳米晶体的Electur纺纳米纤维复合材料：制造和表征

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摘要

An electrospinning process was successfully utilized to manufacture polystyrene/cellulose nanocrystal (PS/CNC) nanofibrous mats. Morphology, crystallinity, thermal behavior, as well as mechanical and hydrophobic properties of electrospun PS/CNC nanofibrous mats were investigated. Morphological analysis of the obtained nanofibrous mats demonstrated that fine nanofibers with smooth and smaller diameter could be obtained with increased CNC contents. Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) results showed that PS and CNCs were physically mixed and CNCs were probably distributed on the surface of the electrospun nanofibers. The structural property e.g. crystallinity of the electrospun nanofibers was examined using wide angle X-ray diffraction (WAXD). It was indicated that crystallinity could be increased as a result of the increased addition of CNCs and aligned nanofiber orientation. Thermal properties of electrospun PS/CNC nanocomposites were enhanced by increasing CNC loading levels. The tensile strength of electrospun PS/CNC nanofibrous mats was elevated 170% by incorporating 7 wt% CNCs in PS matrix, while the ductility was decreased from 60 to 25%. The hydrophobic property could be increased to 138 degrees when 1 wt% CNCs was incorporated.
机译：成功地利用静电纺丝过程制造聚苯乙烯/纤维素纳米晶（PS / CNC）纳米纤维垫。研究了电纺PS / CNC纳米纤维垫的形态学，结晶度，热行为以及机械和疏水性质。所得纳米纤维垫的形态学分析表明，通过增加的CNC含量可以获得具有光滑且较小直径的细纳米纤维。傅里叶变换红外光谱（FTIR）和X射线光电子能谱（XPS）结果表明，PS和CNCS物理混合，并且可能在电纺纳米纤维的表面上分布CNC。结构性的特性。使用宽角X射线衍射（WAXD）检查电纺纳米纤维的结晶度。结果表明，由于增加了CNC和对准的纳米纤维取向，可以增加结晶度。通过增加CNC负载水平来提高Electrom淘PS / CNC纳米复合材料的热性能。通过在PS基质中掺入7wt％CNC，电纺虱PS / CNC纳米纤维垫的拉伸强度升高了170％，而延性从60％降至25％。当掺入1wt％CNC时，疏水性能可以增加到138度。

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  • 来源
    《RSC Advances》 |2015年第63期|共11页
  • 作者

    Huan Siqi; Bai Long; Liu Guoxiang; Cheng Wanli; Han Guangping;

  • 作者单位

    Northeast Forestry Univ Coll Mat Sci &

    Engn Harbin 150040 Peoples R China;

    Northeast Forestry Univ Coll Mat Sci &

    Engn Harbin 150040 Peoples R China;

    Northeast Forestry Univ Coll Mat Sci &

    Engn Harbin 150040 Peoples R China;

    Northeast Forestry Univ Coll Mat Sci &

    Engn Harbin 150040 Peoples R China;

    Northeast Forestry Univ Coll Mat Sci &

    Engn Harbin 150040 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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