摘要
采用气相氧化法及液相氧化法制备了带有羧基的多壁碳纳米管(MWNTs—COOH)。在超声波辅助下,通过原位合成法将纳米羟基磷灰石(nano-HA)包覆在MWNTs—COOH上,得到纳米复合材料(MWNTs—COO/nano-HA),该纳米复合材料与聚乳酸(PLA)熔融共混成功制备出MWNTs—COO/nano-HA/PLA骨修复材料。经过FT-IR、XRD、TEM和电子拉力等分析表明,MWNTs—COOH完全被nano-HA包覆,MWNTs—COO/nano-HA复合材料颗粒完全达到纳米级。实验考察了复合材料中不同含量的MWNTs—COOH和MWNTs—COO/nano-HA对力学性能的影响,确定了MWNTs—COOH和MWNT—COO/nano-HA在材料中的最佳比例。
Pure multi-wall carbon nanotubes with carboxyl （MWNTs--COOH） were prepared by means of purification by gas-phase and liquid-phase oxidation processes. MWNTs--COO/nano-HA composites were in situ synthesized by coating the MWNTs--COOH with nano-HA with the help of ultrasonic, and MWNTs--COO/nano-HA/PLA composites, which could be used as bone repair materials, were produced by melt blending method. The properties of composites were characterized by FT-IR, XRD, TEM, and tensile test. Results show that the MWNTs--COOH are completely coated by nano-HA, and the MWNTs--COO/nano-HA particles are in nanograde. The effects of the contents of MWNTs--COOH and MWNTs--COO/nano-HA on the mechanical properties of the composites were also studied, and the optimal contents of MWNTs--COOH and MWNTs--COO/ nano-HA in the complex materials matrix were determined.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2008年第4期844-847,共4页
Journal of Jilin University:Engineering and Technology Edition
基金
国家地质调查项目(1212101660404)
关键词
应用化学
组织工程
复合材料
多壁碳纳米管
原位合成
纳米羟基磷灰石
力学性能
applied chemistry
tissue engineering
complex materials
multi-wall carbon nanotube
synthesis in situ composite materials
nano-hydroxyapatite
mechanical property
