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2007 , Vol. 22 >Issue 6: 1127 - 1130

DOI: https://doi.org/10.3724/SP.J.1077.2007.01127

研究论文

碳纳米管的表面改性与羟基磷灰石的包覆

  • 卢志华 ,
  • 孙康宁 ,
  • 孙晓宁 ,
  • 朱广楠 ,
  • 李轩琦
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  • (1. 山东大学 材料液态结构及其遗传性教育部重点实验室, 济南 250061; 2. 山东大学 工程陶瓷山东省重点实验室, 济南 250061; 3. 济宁学院 物理系, 济宁 273155)

收稿日期: 2006-11-08

  修回日期: 2006-12-11

  网络出版日期: 2007-11-20

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Surface Modification and Hydroxyapatite Coating of Carbon Nanotubes

  • LU Zhi-Hua ,
  • SUN Kang-Ning ,
  • SUN Xiao-Ning ,
  • ZHU Guang-Nan ,
  • LI Xuan-Qi
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  • (1. Key Lab for Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan 250061, China; 2. Engineering Ceramics Key Lab. of Shandong Province, Shandong University, Jinan 250061, China; 3. Department of Physics, Jining University, Jining 273155, China)

Received date: 2006-11-08

  Revised date: 2006-12-11

  Online published: 2007-11-20

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摘要

通过TEM、FTIR及XRD等检测手段对原位合成法制备羟基磷灰石/碳纳米管复合材料过程中碳管的表面改性及影响羟基磷灰石包覆的因素进行了系统探讨. 研究表明, 浓酸处理后, 碳纳米管表面产生大量官能团; 阴离子表面活性剂十二烷基磺酸钠(SDS)的加入提高了碳纳米管与水的相容性; 实验中随着(NH4)2HPO4溶液的加入, 羟基磷灰石原位沉积并形成包覆层. 结果发现: 碳纳米管的表面改性、适当的pH值和陈化温度是得到羟基磷灰石连续包覆层的关键因素.



关键词： 碳纳米管; 羟基磷灰石; 表面改性; 包覆

本文引用格式

卢志华 , 孙康宁 , 孙晓宁 , 朱广楠 , 李轩琦 . 碳纳米管的表面改性与羟基磷灰石的包覆[J]. 无机材料学报, 2007 , 22(6) : 1127 -1130 . DOI: 10.3724/SP.J.1077.2007.01127

Abstract

In order to study the influence of surface modification and other factors on the hydroxyapatite (HAp) coating of carbon nanotubes by an in situ method, the structure of HAp/carbon nanotubes (CNTs) was investigated by means of TEM, FTIR and XRD. Results show that many functional groups are produced on the surface of CNTs by the acid treatment. Using anionic sodium dodecyl sulfate (SDS) as dispersant, the surface properties of CNTs can be changed to yield a basic or acidic surfaces. With the addition of (NH4)2HPO4 solution, HAp is deposited and successfully coated on CNTs. The results also indicate that the surface modification, proper pH and aging temperature are the key factors to obtain continuous HAP layer.

Key words： carbon nanotubes; hydroxyapatite; surface modification; coating

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