Hydrophobicity of contaminated silicone rubber surfaces

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	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
	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.