Different responses of several kinds of copolymerized polyimide films to ultraviolet irradiation
文献类型：期刊论文
| 作者 | Wang QH(王齐华)
|
| 刊名 | Applied Surface Science
 |
| 出版日期 | 2007 |
| 卷号 | 253页码:5494-5500 |
| 关键词 | Polyimide film X-ray photoelectron spectroscopy Atomic force microscopy Surface topography Friction behavior Photochemistry |
| ISSN号 | 0169-4332 |
| 通讯作者 | 王齐华 |
| 中文摘要 | The surfaces of three kinds of copolymerized polyimide films were irradiated by ultraviolet (UV) light. The chemical composition changes of the films after irradiation were investigated by X-ray photoelectron spectroscopy (XPS), while their topographical changes were studied by atomic force microscopy (AFM). Besides, the surface topographical variation induced changes in friction behavior were recorded on a DF PM unidirectional friction and wear test rig in a ball on block contact configuration. It was found that photodegradation took place, which induced the chain scission of the polyimide molecules and formation of low molecular weight oxidized material (LMWOM). Due to different photostability of the three kinds of polyimide, different chemical composition changes and forms of “LMWOM” were observed. Also, different friction behavior variations of the three kinds of polyimide films were recorded. It is thought that the polyimide film of PI (PPA + PMDA) with rod-like structures might have stronger photo-resistance, whose form of “LMWOM” was “nodules” and whose friction coefficient increased at 2 h of irradiation possibly due to cross-linking. In the case of PI (OPA + PMDA) and PI (MPA + PMDA) films, they mainly underwent photodegradation, which might soften the surfaces and increased the friction coefficients with increasing irradiation time. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the Innovative Group Foundation from NSFC (Grant No. 50421502);the National Natural Science Foundation of China (Grant No. 50475128) |
| 语种 | 英语 |
| WOS记录号 | WOS:000246092900051 |
| 公开日期 | 2013-11-01 |
| 源URL | [http://210.77.64.217/handle/362003/4097]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 兰州化学物理研究所_先进润滑与防护材料研究发展中心 |
| 通讯作者 | Wang QH(王齐华) |
| 推荐引用方式 GB/T 7714 | Wang QH. Different responses of several kinds of copolymerized polyimide films to ultraviolet irradiation[J]. Applied Surface Science,2007,253:5494-5500. |
| APA | 王齐华.(2007).Different responses of several kinds of copolymerized polyimide films to ultraviolet irradiation.Applied Surface Science,253,5494-5500. |
| MLA | 王齐华."Different responses of several kinds of copolymerized polyimide films to ultraviolet irradiation".Applied Surface Science 253(2007):5494-5500. |
入库方式： OAI收割
来源：兰州化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。