摘要
首先采用等离子聚合法使六甲基二硅氧烷沉积于聚醚型聚氨酯表面，再利用硅离子以不同的剂量时表面进行轰击。结果表明：在2×10(15)cm(-2)剂量下注入使材料表面的凝血时间从6分钟提高到16．8分钟，同时表面浸润性也明显改善，而且这些性能的变化要比单纯注入的更稳定和更有规律。X射线光电子能谱分析表明：离子束和等离子体的联合处理不仅打断了表面的一些化学键，而且在表面形成了诸如Si-N，O-Si-O基团以及硅原子。这些结构上的变化会影响生物医学性能。
Using plasma polymerization, polythurethane films were polymerized by hexamethyldisiloxane monomer, then silicon ion with different doses was bombarded into surface. The results indicated that the coagulation time of sample was Increased from 6 to 16. 8 minutes with dose of 2 × 1015cm-2,in the same time the wettability was also enhanced evidently. And the changes in these behaviors led by implantation combined with polymerization were more stable and regular than changes only led by implantation. XPS analysis showed that their combined treatment not only broke some chemical bonds,but also formed some new Si-containing bonds such as Si-N,O-Si-O,and unbound Si on surface. These constructual changes can affect biomedical behaviors.
出处
《微细加工技术》
EI
1997年第3期52-57,共6页
Microfabrication Technology
基金
国家自然科学基金
天津市青年自然科学基金
上海冶金所离子束开放实验室部分资助
关键词
离子注入
聚醚型
聚氨酯
生物医学材料
Ion implantation Plasma Polymerization
Polyetherurethane
