中国组织工程研究

中国组织工程研究 ›› 2012, Vol. 16 ›› Issue (3): 489-494.doi: 10.3969/j.issn.1673-8225.2012.03.024

• 材料力学及表面改性 material mechanics and surface modification • 上一篇    下一篇

铁质纳米粉体对甲基乙烯基硅橡胶表面性质的影响*★

吴  幸1，田鸿钧2，尹诗衡3，陈俭云1，李  军1，王正文1   

  1. 1海南医学院附属医院普通外科，海南省海口市 570102；2吉林大学中日联谊医院基本外科，吉林省长春市 130033；3华南理工大学分析测试中心，广东省广州市
    510640
  • 收稿日期:2011-07-27 修回日期:2011-09-17 出版日期:2012-01-15 发布日期:2012-01-15
  • 作者简介:吴幸★，男，1962年生，广东省汕头市人，汉族，2002年吉林大学毕业，硕士，主要从事普通外科临床研究和胆道相容性材料研究。 wohsien@ yahoo.com.cn
  • 基金资助:

    课题受国家自然科学基金(30860077)资助。

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*

PDF

444

被引次数

3

摘要：

背景：铁质纳米粉体填入甲基乙烯基硅橡胶可构建出X射线平片可视的新型复合材料，但复合材料的表面性质尚不清楚。
目的：探讨铁质纳米粉体对甲基乙烯基硅橡胶表面性质的影响。
方法：将前期制备出的纳米铁粉增强硅橡胶和碳包铁粉增强硅橡胶复合材料作为实验组，甲基乙烯基硅橡胶为对照组比较观察。
结果与结论：与对照组的表面性质相比，实验组材料的表面变化包括表面粗糙度的Ra值和Ry值升高，纳米铁粉升高Ry值的效果更为明显；基胶分子链之间的纳米颗粒增多；表面C、O、Si等元素的原子百分比发生变化，碳包铁粉升高表面含碳基团的幅度较大；添加纳米铁粉的表面水接触角小幅减小，表面能却降低；添加碳包铁粉的表面水接触角小幅升高，表面能增加；表面自由能的极性分量增加。说明纳米铁或碳包铁均导致甲基乙烯基硅橡胶表面性质的改变，但变化的结果不全相似，这与纳米铁和碳包铁的结构、化学组成不同有关。

关键词: 硅橡胶, 铁质纳米微粒, 碳包铁粉, 甲基乙烯, 表面性质

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.
 

中图分类号: