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Sonication-induced effects on carbon nanofibres in composite materials

机译:超声处理对复合材料中碳纳米纤维的影响

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摘要

The preparation and characterization of carbon nanofibre- gellan gum composite materials is presented. Electron microscopy analysis reveals that nanofibres are affected by sonolysis, i.e. fibre length reduces, while filling occurs. Spectroscopic analysis suggests that the nanofibres are modified during the preparation of the dispersions. It is shown that despite these effects, composite materials prepared using a short period of sonolysis (4 min) exhibit robust conductivity, strain at failure and Young's modulus values of 35 +/- 2 S cm(-1), 20 +/- 1% and 1.3 +/- 0.3 MPa, respectively.
机译:介绍了碳纳米纤维-吉兰糖胶复合材料的制备和表征。电子显微镜分析表明,纳米纤维受声波分解的影响,即纤维长度减少,同时发生填充。光谱分析表明,纳米纤维在分散体的制备过程中被改性。结果表明,尽管有这些影响,使用短时间的声波分解(4分钟)制备的复合材料仍显示出稳定的电导率,破坏应变和杨氏模量值为35 +/- 2 S cm(-1),20 +/- 1 %和1.3 +/- 0.3MPa。

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