Effect of treatment temperature on surface wettability of methylcyclosiloxane layer formed by chemical vapor deposition

被引：11

作者：

Ishizaki, Takahiro ^{[1
]}

Sasagawa, Keisuke ^{[2
]}

Furukawa, Takuya ^{[2
]}

Kumagai, Sou ^{[2
]}

Yamamoto, Erina ^{[2
]}

Chiba, Satoshi ^{[2
]}

Kamiyama, Naosumi ^{[2
]}

Kiguchi, Takayoshi ^{[2
]}

机构：

[1] Shibaura Inst Technol, Coll Engn, Dept Mat Sci & Engn, Koto Ku, 3-7-5 Toyosu, Tokyo 1358548, Japan

[2] Shibaura Inst Technol, Grad Sch Sci & Engn, Dept Mat Sci & Engn, Koto Ku, 3-7-5 Toyosu, Tokyo 1358548, Japan

来源：

APPLIED SURFACE SCIENCE | 2016年 / 379卷

基金：

日本学术振兴会;

关键词：

1,3,5,7-Tetramethylcyclotetrasiloxane; CVD; Contact angle hysteresis; Hydrophobicity; Superhydrophobicity; SUPERHYDROPHOBIC SURFACE; POLYMERIZATION; OCTAMETHYLCYCLOTETRASILOXANE; CYCLOSILOXANES; FABRICATION; RESISTANCE; REPELLENT;

D O I：

10.1016/j.apsusc.2016.03.149

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The surface wettability of the native Si oxide surfaces were tuned by chemical adsorption of 1,3,5,7-tetramethylcyclotetrasiloxane (TMCTS) molecules through thermal CVD method at different temperature. Water contact angle measurements revealed that the water contact angles of the TMCTS-modified Si oxide surfaces at the temperature of 333-373 K were found to be in the range of 92 +/- 2-102 +/- 2 degrees. The advancing and receding water contact angle of the surface prepared at 333 K were found to be 97 +/- 2/92 +/- 2 degrees, showing low contact angle hysteresis surface. The water contact angles of the surfaces prepared at the temperature of 373-413 K increased with an increase in the treatment temperature. When the treatment temperature was more than 423 K, the water contact angles of TMCTS-modified surfaces were found to become more than 150 degrees, showing superhydrophobic surface. AFM study revealed that the surface roughness of the TMCTS-modified surface increased with an increase in the treatment temperature. This geometric morphology enhanced the surface hydrophobicity. The surface roughness could be fabricated due to the hydrolysis/condensation reactions in the gas phase during CVD process. The effect of the treatment temperature on the reactivity of the TMCTS molecules were also investigated using a thermogravimetric analyzer. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：446 / 451

页数：6

共 33 条

[1] Purity of the sacred lotus, or escape from contamination in biological surfaces [J].