Surface Modification of Polymers by Synchrotron Radaition and its application for micro(nano)system

同步辐射聚合物表面改性及其在微（纳）系统中的应用

• 批准号: 14550128
• 负责人: ISHIGAKI Hiroyuki
• 金额: $ 2.3万
• 依托单位: Himeji Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14550128/
• 关键词: PTFE; surface modification; synchrotron radiation; tribology; friction; contact angle; wettability; PTFFテフロン; 親水性; 疎水性; 表面粗さ; PTFEテフロン; 超撥水性

The surface modification of a poly(tetrafluoroethylene) sheet was carried out by synchrotron radiation in the soft X-ray region. The poly(tetrafluoroethylene)(PTFE) sheet was exposed to synchrotron radiation while varying the substrate temperature from room temperature to 200C. The contact angle of the modified surface with a water drop decreased from 96 to 72 by the irradiation at room temperature, while the contact angle increased to 143 by the irradiation at the substrate temperature of 200C. The substrate temperature also affects the coefficient of friction of the PTFE surfaces.Scanning electron microscopy suggested that these influences were ascribable to the microstructure of the surface. The X-ray photoelectron spectroscopy (XPS) study indicate that the amount o CF2 component on the PTFE surface decreased from 90.1% to 0.9% and that of C-C component increased from 4.0% to 79% by SR exposure at room temperature. It is considered that the C-rich surface is produced by the SR irradiation, based on the ablative photochemical decomposition model. These changes of the chemical composition affected the wettability and therefore influenced the tribological properties of PTFE.

利用同步辐射技术，在软X射线区对聚四氟乙烯片材进行了表面改性。将聚四氟乙烯(PTFE)薄膜置于同步辐射下，同时改变衬底温度从室温到200℃。在室温下辐照处理后，表面与水滴的接触角从96降至72，而在200℃下辐照处理后，表面与水滴的接触角增加到143。基片温度对聚四氟乙烯表面的摩擦系数也有影响，扫描电子显微镜分析表明，这些影响与表面的微观结构有关。X射线光电子能谱(XPS)研究表明，室温SR处理后，PTFE表面CF2组分的含量从90.1%下降到0.9%，C-C组分的含量从4.0%增加到79%。根据烧蚀光化学分解模型，认为富C表面是由SR辐照产生的。这些化学成分的变化影响了聚四氟乙烯的润湿性，从而影响了聚四氟乙烯的摩擦学性能。

项目成果

Y.Haruyama, T.Ideta, H.Ishigaki, K.Kanda, S.Matsui: "X-ray Photoelectron Spectroscopy Study of Synchrotron Radiation Irradiation of a Polytetrafluoroethylene Surface"Jpn.J.Appl.Phys.. Vol42. 1722-1724 (2003)

Y.Haruyama、T.Ideta、H.Ishigaki、K.Kanda、S.Matsui：“聚四氟乙烯表面的同步辐射照射的 X 射线光电子能谱研究”Jpn.J.Appl.Phys.. Vol42。

K.Kanda, T.Ideta, Y.Haruyama, H.Ishigaki, S.Matsui: "Surface Modification of Fluorocarbon Polymers by Synchrotron Radiation"Jpn.J.Appl.Phys.. Vol.42. 3983-3985 (2003)

K.Kanda、T.Ideta、Y.Haruyama、H.Ishigaki、S.Matsui：“通过同步辐射对氟碳聚合物进行表面改性”Jpn.J.Appl.Phys.. Vol.42。

K.Kanda, T.Ideta, Y.Haruyama, H.Ishigaki, S.Mtsui: "Surface Modification of Fluorocarbon Polymers by Synchrotron Radiation"Jpn.J.Appl.Phys.. Vol42. 3983-3985 (2003)

K.Kanda、T.Ideta、Y.Haruyama、H.Ishigaki、S.Mtsui：“通过同步辐射对氟碳聚合物进行表面改性”Jpn.J.Appl.Phys.Vol42。

Kazuhiro Kanda: "Surface Modification of Fluorocarbon Polymers by Synchrotron Radiation"Jpn.J.Appl.Phys.. Vol.42 No.6B. 3983-3985 (2003)

Kazuhiro Kanda：“通过同步辐射对氟碳聚合物进行表面改性”Jpn.J.Appl.Phys.. Vol.42 No.6B。

Y.Haruyama.T.Ideta, H.Ishigaki, K.Kanda, S.Matsui: "X-ray Photoelectron Spectroscopy Study of Synchrotron Radiation Irradiation of a Polytetrafluuoroethylene Surface"Jpn.J.Appl.Phys.. Vol.42. 1722-1724 (2003)

Y.Haruyama.T.Ideta、H.Ishigaki、K.Kanda、S.Matsui：“聚四氟乙烯表面同步辐射照射的 X 射线光电子能谱研究”Jpn.J.Appl.Phys.. Vol.42。