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[求助]
求修改：Just in the Abstract alone there are 4 typographical errors! 已有2人参与
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Abstract.The effect of electron beam (EB) irradiation on polytetrauoroethylene (PTFE) film has been studied in air at room temperature. Changes in the chemical structure were determined by Fourier transform infrared (FTIR). Morphological changes on the film surface were described using field emitting scanning electron microscopy (SEM). The surface hydrophilicity of the modified film was characterized through water contact angle measurement. The scission of the chain in the surface of PTFE film was induced by electron irradiation. The atomic ration (F/C) was decreased and the atomic ration (O/C) was increased. Surface roughness of the sample irradiated increased. In case of irradiation in presence of residual air carboxylic acid fuoride groups are incorporated which can hydrolyze to carboxylic groups in the surface-near regions. These polar groups reduce the hydrophobic and oleophobic properties so much that the water contact angle of the film surface reduced significantly. Keywords: Polytetrafluoroethylene; Electron beam irradiation; modification; wetting property |
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3楼2014-12-16 18:55:35
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2楼2014-12-16 16:05:54
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meilan9: 金币+10, ★★★很有帮助 2014-12-26 20:14:37
meilan9: 金币+10, ★★★很有帮助 2014-12-26 20:14:37
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Abstract: The effect of electron beam (EB) irradiation on polytetrauoroethylene (PTFE) film was studied in air at room temperature. Changes in the chemical structure of the film were determined by Fourier transform infrared (FTIR). Morphological changes of the film surface were described using field emitting scanning electron microscopy (SEM). The surface hydrophilicity of the modified film was characterized through water contact angle measurement. The scission of the chain on the surface of PTFE film was induced by electron irradiation. The atomic ratio(F/C) was decreased and the atomic ratio (O/C) was increased. Surface roughness of the sample irradiated was increased. In case of irradiation in presence of residual air the carboxylic acid fuoride groups were incorporated which can hydrolyze to carboxylic groups in the surface-near regions. These polar groups reduced the hydrophobic and oleophobic properties so much that the water contact angle of the film surface decreased significantly. Keywords: Polytetrafluoroethylene; Electron beam irradiation; modification; wetting property |
4楼2014-12-19 21:19:38
