| 查看: 6087 | 回复: 75 | ||||||||
| 【奖励】 本帖被评价72次，作者何小佳gail增加金币 56 个 | ||||||||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | ||||||||
[资源]
新氧化石墨烯片三层膜制备成功
|
||||||||
|
中科院兰州化学物理研究所固体润滑国家重点实验室研究人员在石墨烯基多层薄膜的构筑及其摩擦学性能研究方面取得新进展。在由氧化石墨烯（GO）外层和3-氨基丙基三乙氧基硅烷（APTES）自组装底层修饰的硅基片上，研究人员进一步接枝了十八烷基三氯硅烷（OTS）分子，成功地构筑了疏水的APTES-GO-OTS三层膜。对其微结构和摩擦学性能研究表明，该三层膜呈现低粘着性，且其微观摩擦学性能和宏观摩擦学性能均显著提高。 ABSTRACT: Taking advantage of the condensation between SiOH of the hydroxylated octadecyltrichlorosilane (OTS) and COH on graphene oxide (GO) surface, we grafted OTS onto the GO-based dual-layer film, which was composed of GO outerlayer and (3-aminopropyl)triethoxysilane (APTES) selfassembled underlayer, on a Si substrate. Thus, a hydrophobic trilayer film coded as APTES-GO-OTS was prepared successfully. To confirm the chemical composition, structure, and morphology of the trilayer film, various means including water contact angle measurement, attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectrometry, X-ray photoelectron spectroscopy (XPS), and atomic force microscopy (AFM) were performed. Moreover, to investigate the tribological performances, the micro- and macrotribological experiments were conducted with AFM and a UMT tribometer. The results showed that the as-prepared trilayer film exhibited low adhesion and greatly reduced the friction force in both the micro- and macroscale. Therefore, such a trilayer film is suitable for an application in the lubrication and protection of nano/microelectromechanical systems (NEMS/MEMS). |
回复此楼» 收录本帖的淘帖专辑推荐
 膜技术 | Advanced Nanomaterials（graphere & nanotubes） | 石墨烯及其相关的主题 | Graphene |
| 石墨烯_小木虫20120421 | 石墨烯小百科 |
» 本帖已获得的红花（最新10朵）
麦子sq» 猜你喜欢
金属材料论文润色/翻译怎么收费?
已经有208人回复
» 本主题相关商家推荐: (我也要在这里推广)
» 本主题相关价值贴推荐，对您同样有帮助:
- 高温膨胀制备氧化石墨烯！纠结！
已经有57人回复
- 微米纳米版2011年7月--12月资源帖汇总
已经有9人回复
- 氧化石墨烯制备
已经有4人回复
- [求助]买氧化石墨自己超声波制备氧化石墨烯
已经有31人回复
- 氧化石墨烯的制备
已经有13人回复
- 【分享】新方法高效还原氧化石墨烯薄膜
已经有18人回复
- 【分享】新方法高效还原氧化石墨烯薄膜
已经有20人回复
- 【讨论】氧化石墨的剥离方法，氧化石墨烯（单层）制备（超声剥离法）
已经有27人回复
14楼2011-09-03 09:14:58
2楼2011-07-10 15:30:21
10楼2011-07-27 08:21:21
13楼2011-08-30 14:10:57
简单回复
白菜青虫3楼
2011-07-11 16:00
回复
五星好评 顶一下，感谢分享！
sunzc264楼
2011-07-12 09:53
回复
五星好评 顶一下，感谢分享！
2011-07-12 17:14
回复
五星好评 顶一下，感谢分享！
2011-07-18 11:36
回复
五星好评 顶一下，感谢分享！
2011-07-21 10:11
回复
五星好评 顶一下，感谢分享！
xzxyry11楼
2011-07-27 11:27
回复
五星好评 顶一下，感谢分享！
投票:
30