期刊
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
卷 11, 期 4, 页码 661-664出版社
SPRINGER
DOI: 10.1007/s11998-014-9585-8
关键词
Quarry stone; Plasma polymerization; Polyhexamethyldisiloxane; Water repellent
资金
- Universidad Autonoma de la Ciudad de Mexico (UACM) [PI-2011-FM08 CONVENTION UACM/OAG/ADI/002/2011]
- Instituto de Ciencia y Tecnologia del Distrito Federal (ICYT-DF) [PIUTE 10-63, ICyTDF 276/2010, ICyTDF-PICSA11-14/2011]
The surface of quarry stone was modified with a thin film of plasma-polymerized hexamethyldisiloxane (PPHMDSO) deposited at atmospheric pressure. The surface of the treated stone turned hydrophobic as shown by water contact angle measurements. FTIR characterization showed CH3 and Si-CH3 bands characteristic of HDMSO functional groups. Finally, the water absorption of untreated and PPHMDSO-modified stones was studied. In both cases, the water absorption profile was consistent with Fickian diffusion but the treated stone absorbed 8 times less water than the untreated stone.
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