• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Symposium on Ion Beam Synthesis and Processing of Advanced Materials held Nov 27-29, 2000, Boston, Massachusetts, U.S.A. >ENHANCEMENT OF POROSITY AND SURFACE ROUGHNESS OE CURED PHENOLIC RESIN BY ION IMPLANTATION
【24h】

ENHANCEMENT OF POROSITY AND SURFACE ROUGHNESS OE CURED PHENOLIC RESIN BY ION IMPLANTATION

机译：离子注入法增强酚醛树脂的孔隙率和表面粗糙度

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We present recent results using ions such as C, O, Si, Fe, Zn, and Au at energies between 100 keV to 10 MeV to increase the roughness and porosity of the partially and fully cured precursor phenolic resins. The fully cured phenolic resin is called Glassy Polymeric Carbon (GPC). GPC is chemically inert, biocompatible and useful for medical applications, such as heart valves and other prosthetic devices. Ion implantation enhances biological cell/tissue growth on, and tissue adhesion to, prosthetic devices made from GPC. We have previously shown that increased porosity of GPC is also useful for drug delivery devices. The porosity of the ion implanted partially and fully cured precursor phenolic resins was measured by introducing lithium from a molten LiCl salt into each sample. By using Li(p,2α) nuclear reaction analysis (NRA) we measured the concentration of Li retention in the pre- and post-implanted samples. The surface roughness was measured using optical microscopy. The curing process was monitored using micro-Raman microscopy. We have correlated the NRA measurements of increased pore availability with the observations of increased surface roughness.
机译：我们介绍了最近的结果，使用了能量在100 keV至10 MeV之间的C，O，Si，Fe，Zn和Au等离子来增加部分和完全固化的前体酚醛树脂的粗糙度和孔隙率。完全固化的酚醛树脂称为玻璃态聚合碳（GPC）。 GPC具有化学惰性，生物相容性，可用于医疗应用，例如心脏瓣膜和其他修复设备。离子植入可增强由GPC制成的假体设备上生物细胞/组织的生长以及组织对组织的粘附。先前我们已经表明，增加的GPC孔隙率也可用于药物输送装置。通过将来自熔融LiCl盐的锂引入每个样品中，来测量离子注入的部分和完全固化的前体酚醛树脂的孔隙率。通过使用Li（p，2α）核反应分析（NRA），我们测量了植入前和植入后样品中Li保留的浓度。使用光学显微镜测量表面粗糙度。使用显微拉曼显微镜监测固化过程。我们将增加孔隙利用率的NRA测量结果与增加的表面粗糙度相关联。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号