Chinese Journal of Tissue Engineering Research ›› 2012, Vol. 16 ›› Issue (3): 489-494.doi: 10.3969/j.issn.1673-8225.2012.03.024

Previous Articles     Next Articles

Effect of ferric nanoparticles on surface properties of methyl vinyl silicone rubber

Wu Xing1, Tian Hong-jun2, Yin Shi-heng3, Chen Jian-yun1, Li Jun1, Wang Zheng-wen1   

  1. 1Department of General Surgery, Affiliated Hospital of Hainan Medical College, Haikou 570102, Hainan Province, China; 2Department of General Surgery, China-Japan Union Hospital of Jilin University, Changchun  130033, Jilin Province, China; 3Analytical and Testing Centre of South China University of Technology, Guangzhou  510640, Guangdong Province, China
  • Received:2011-07-27 Revised:2011-09-17 Online:2012-01-15 Published:2012-01-15
  • About author:Wu Xing★, Master, Department of General Surgery, Affiliated Hospital of Hainan Medical College, Haikou 570102, Hainan Province, China wohsien@ yahoo.com.cn
  • Supported by:

    the National Natural Science Foundation of China, No. 30860077*

Abstract:

BACKGROUND: X-ray image visible new composites can be harvested after ferric nanoparticles being mixed with methyl vinyl silicone rubber (MVSR), however, surface properties of the composites still unclear.
OBJECTIVE: To explore the effects of ferric nanoparticles on surface properties of MVSR.
METHODS: Both previously prepared iron nanoparticle enhanced silicone rubber (INESR) and carbon-coated ferric nanoparticle enhanced silicone rubber (Fe/CESR) were chosen to be experimental group, MVSR as a control group. The surface roughness, topography, chemical components, water and diiodomethane contact angles as well as free energy of above-mentioned groups were tested respectively.
RESULTS AND CONCLUSION: Compared with MVSR, the changes of surface property in the experimental groups including the increase of both Ra and Ry values of roughness, the rise of Ry values was more apparent by adding into iron nanoparticles, more nanoparticles existed among molecular chains of base rubber, atomic percentages of C, O and Si in the surfaces had been altered with a big increase in carbon-based groups caused by carbon-coated ferric nanoparticles, small decreases of water contact angles and surface free energy by adding nanoparticles and a small increase of that by adding carbon-coated ferric nanoparticles, the polar components of free energy were promoted. MVSR added with iron nanoparticles or carbon-coated nanoparticles resulted in changes of its surface property, but the changes caused by the two metal nanoparticles were not completely similar, those attributed to the structure and chemical component differences existing between the nanoparticles.
 

CLC Number: