Int J Stomatol

Inter J Stomatol ›› 2010, Vol. 37 ›› Issue (02): 125-127.doi: 10.3969/j.issn.1673-5749.2010.02.001

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Study of chemical characteristics and water affinity on nano-granule titanium film

YANG Zhenyu, YOU Meng, WANG Hu, LIU Yuan-yuan, LI Ming-xia, BA Kai, LIN Ying-jie.   

  1. Dept. of Oral Radiology, West China College of Stomatology, Sichuan University, C
  • Received:2009-06-08 Revised:2009-10-16 Online:2010-03-20 Published:2010-03-20
  • Contact: WANG Hu

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Abstract:

Objective To construct four nano-granule titanium film models and investigate their surface chemical characteristics and water affinities. Methods Different titanium films were prepared under temperatures control by direct current magnetron sputtering. Surface chemical elements and their mass fractions of samples in ambient group, 100 ℃ group, 250 ℃ group and 380 ℃ group were investigated by X-ray photoelectron spectroscopy（XPS） and their water affinities were measured by stable contact angle tests respectively. Results The elements of titanium, oxygen and carbon were detected on all samples with approximate contents. The differences of percentage content on oxygen and carbon were significant between control group and 380 ℃ group. There were significant differences of contact angles between control group and all other groups by water contact angles tests with the minimum contact angle in control group. No statistical difference of contact angles existed between ambient group and all other groups but with 100 ℃ group. A larger angle showed in ambient group. Conclusion In this study, nano-granule titanium film models in all groups shared the similar chemical compositions and contents. The differences of water affinity mainly came from superficial topography variation. The specificity of titanium substrate would cause poorer water affinities in filmed groups than that in control group.

Key words: nano-structure, titanium film, superficial chemical characteristics, water affinity

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