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Surface energy control of polymeric materials for contamination elimination in space environment

聚合物材料表面能控制消除空间环境污染

基本信息

批准号：
14350511
负责人：
TAGAWA Masahito
金额：
$ 4.48万
依托单位：
Kobe University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2004
项目状态：
已结题

项目摘要

The surface modification of polymeric materials by using hyperthermal atom beam was made in order to control contact angles of water relevance to contamination in low Earth orbit space environment. Two types of atom beam were currently used for a surface modification, i.e., atomic oxygen and atomic fluorine with translational energies ranging 5 to 10 eV. The translational energies in this range became available after laser detonation-induced beam formation technology was established for space environmental simulation purpose. In the present study, we used this new technology to control the surface free energy of polymers. This new technology also allows us to make low-temperature, damage-free surface modification without any charge-induced problems. From the experimental results obtained in this study, it was confirmed that the oxygen and fluorine concentrations increased with beam exposures. The formation of CF, CF_2 and CF_3 bonds were detected by X-ray photoelectron spectroscopy (XPS) when atomic fluorine beam was used to modify the surface, whereas carbonyl and carboxyl groups were formed when a polymer surface was exposed to atomic oxygen beam. It was demonstrated that the advancing contact angles of water both at polyimide and low-density polyethylene could be tunable between 60 and 135 degree by using this technique without major change of surface roughness. The capability of pattern formation of micro-scale flow channel at polymer surfaces using metal masks demonstrated the capability for avoiding contamination on polymer surfaces using this technique.

为了控制近地轨道空间环境中与污染有关的水的接触角，采用高温原子束对高分子材料进行了表面改性。目前有两种类型的原子束用于表面改性，即原子氧和原子氟，其平动能在5至10 eV之间。该范围内的平动能量是在建立了用于空间环境模拟的激光爆轰诱导光束形成技术后获得的。在本研究中，我们利用这种新技术来控制聚合物的表面自由能。这项新技术还允许我们进行低温、无损伤的表面改性，而不会产生任何电荷引起的问题。从本研究获得的实验结果可以证实，氧和氟浓度随着光束照射而增加。用x射线光电子能谱（XPS）检测了氟原子束修饰聚合物表面形成CF、CF_2和CF_3键，而原子氧束修饰聚合物表面形成羰基和羧基。结果表明，水在聚酰亚胺和低密度聚乙烯表面的推进接触角可以在60 ~ 135度之间进行调节，而表面粗糙度不会发生很大变化。利用金属掩模在聚合物表面形成微尺度流道的能力证明了该技术可以避免聚合物表面的污染。

项目成果

期刊论文数量（74）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

細胞接着マイクロパターニングとアクチン細胞骨格の配向制御:原子ビームを用いた基板表面改質の試み

细胞粘附微图案和肌动蛋白细胞骨架方向的控制：尝试使用原子束修饰基底表面

DOI：
发表时间：
2004
期刊：
日本結晶成長学会誌 31
影响因子：
0
作者：
Tagawa M.;Muromoto M.;Hachiue S.;Yokota K.;Ohmae N.;Matsumoto K.;Suzuki M.;Tagawa M;Tagawa M;Tagawa M;安達泰治
通讯作者：
安達泰治

Tagawa M., Dejima K., Tsumamoto S., Yokota K., Ohmae N., Kinoshita H.: "Utilization of low Earth orbit space environment in the formation of an insulating oxide layer on semiconductor surface"Proceedings of the 23^<rd> International Symposium on Space Tec

Takawa M.、Dejima K.、Tsumamoto S.、Yokota K.、Ohmae N.、Kinoshita H.：“利用低地球轨道空间环境在半导体表面形成绝缘氧化物层”23^<