Hydrophobicity of contaminated silicone rubber surfaces | |
Zheng, ZM; Xu, CH; Jiang, J; Ren, CY; Gao, W; Xie, ZM | |
刊名 | CHINESE JOURNAL OF POLYMER SCIENCE
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2002-11-01 | |
卷号 | 20期号:6页码:559-564 |
关键词 | Hydrophobicity Silicone Rubber Contact Angle Contamination |
ISSN号 | 0256-7679 |
英文摘要 | Silicone rubber (SIR) shows superior performance when used outdoors, but its surface can be transformed from inherently hydrophobic to hydrophilic by the adsorption of contaminants. Al(OH)(3), Al2O3, quartz powder and active carbon were selected as authentic contaminants. Hydrophobicity of the surface was determined using contact angle measurement. The results indicate that the adsorbability of the contaminants can strongly affect the hydrophobicity of contaminated SIR surface. The increasing rate of contact angle of specimens contaminated by Al(OH)(3) was much faster than that by Al2O3 and quartz due to the adsorption of migrated low molecular weight (LMW) polydimethylsiloxanes. Specimens contaminated by active carbon could achieve surface hydrophobicity within 15 min because active carbon has high adsorbability. Surfaces of contaminated ultrapure SIR, polytetrafluoroethylene (PTFE) and glass remain hydrophilic because they contain no mobile LMW components. The addition of oligomeric polydimethylsiloxanes has little effect on the hydrophobicity of contaminants covered on SIR surface. |
语种 | 英语 |
出版者 | SPRINGER-VERLAG BERLIN |
WOS记录号 | WOS:000179457900009 |
内容类型 | 期刊论文 |
源URL | [http://ir.iccas.ac.cn/handle/121111/79245] ![]() |
专题 | 中国科学院化学研究所 |
通讯作者 | Xie, ZM |
作者单位 | Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China |
推荐引用方式 GB/T 7714 | Zheng, ZM,Xu, CH,Jiang, J,et al. Hydrophobicity of contaminated silicone rubber surfaces[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2002,20(6):559-564. |
APA | Zheng, ZM,Xu, CH,Jiang, J,Ren, CY,Gao, W,&Xie, ZM.(2002).Hydrophobicity of contaminated silicone rubber surfaces.CHINESE JOURNAL OF POLYMER SCIENCE,20(6),559-564. |
MLA | Zheng, ZM,et al."Hydrophobicity of contaminated silicone rubber surfaces".CHINESE JOURNAL OF POLYMER SCIENCE 20.6(2002):559-564. |
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