展示了摩擦强度对聚酰亚胺薄膜表面形态的影响.原子力显微图像显示,机械摩擦会使聚酰亚胺薄膜表面上形成微沟槽.这些沟槽的表面具有丰富的表面精细构造.原子显微图像还揭示了机械摩擦可以改变被磨擦聚酰亚胺膜的表面形态.
The effect of the rubbing strength on the surface morphology of rubbed polyimide films is demonstrated. Atomic force microscopy images show that mechanical rubbing produces microgrooves with rich subtle surface features on the surface of the polyimide films, and reveal that the surface topography of the polymer film is modified by the mechanical rubbing.
参考文献
| [1] | Cognard J. Alignment of nematic liquid crystal and their mixtures[J].Mol. Cryst. Liq. Cryst., 1982, Suppl.1: 1-74. |
| [2] | Ishihara S, Wakemoto H, Nakazima K, et al. The effect of rubbed polymer films on the liquid crystal alignment[J].Liq. Cryst., 1989, 4: 669-675. |
| [3] | Seo D S, Oh-Ide T, Kobayashi S. Generation of pretilt angles in nematic liquid crystal,5CB,media aligned on polyimide films prepared by spin-coating and LB techniquies:effect of rubbing[J].Mol. Cryst. Liq. Cryst., 1992, 214: 97-104. |
| [4] | Macdonald B F, Cole R J, Zheng W, et al.Reflection anisotropic spectroscopy as a tool in the fabrication of liquid crystal devices[J]. Phys. Stat. Sol., 2001, 188: 1577-1581. |
| [5] | Hirosawa I.Method of characterizing rubbed polymide film for liquid crystal display devices uing reflection ellipsometry[J]. Jpn. J. Appl. Phys., 1996, 35: 5873-5875. |
| [6] | Hirosawa I.Relation between molecular orientation and rubbing strength observed by reflection elllipsometry[J]. Jpn. J. Appl. Phys., 1997, 36: 5192-5196. |
| [7] | Uchida T, Seki H.Surface Alignment of Liquid Crystals, Liquid Crystals Applications and Uses[M].Bahadur B,Ed.,Singapore: World Scientific, 1992, 1-63. |
| [8] | Seo D S, Kobayashi S.Study of the pretilt angle for 5CB on rubbed polymide films containing trifluoromethyl moiety and analysis of the surface atomic concentration of F/C(%) with an electron spectroscope for chemical analysis[J]. Appl. Phys. Lett., 1992, 61: 2392-2394. |
| [9] | Kutty T R N,Fisher A G. Planar orientation of nematic liquid crystals by chemisorbed polyvinyl alcohol surface layers[J].Mol. Cryst. Liq. Cryst., 1983, 99: 301-318. |
| [10] | Geary J M, Goodby J W, Kemtz A R, et al.The mechanism of polymer alignment of liquid-crystal materials[J]. J. Appl. Phys., 1987, 62: 4100-4108. |
| [11] | Kikuchi H, Logan J A, Yoon D Y.Study of local stress,morphology,and liquid crystal alignment on buffed polyimide surface[J]. J. Appl. Phys., 1996, 79: 6811-6817. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%