Preparation and Physicochemical Properties of Hydroxyapatite/Polyurethane Nanocomposites

Jian-bin Luo; Shu-xuan Qiu; Yong-li Wang; Rong-hui Lai; Xing-yi Xie

doi:10.1007/s10118-014-1414-0

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Preparation and Physicochemical Properties of Hydroxyapatite/Polyurethane Nanocomposites

Updated：2021-06-21

- Preparation and Physicochemical Properties of Hydroxyapatite/Polyurethane Nanocomposites
- Chinese Journal of Polymer Science Vol. 32, Issue 4, Pages: 467-475(2014)
- Affiliations：
  
  a.College of Chemical Engineering and Environmental Protection, Southwest University for Nationalities, Chengdu 610041, China
  b.Department of Polymeric Biomaterials and Artificial Organs, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
- Author bio：
  
  **Jian-bin Luo (罗建斌), E-mail: luojb1971@163.com
  Xing-yi Xie (谢兴益), E-mail: xiexingyi@scu.edu.cn or xiexingyi@263.net
- Funds：
- DOI：10.1007/s10118-014-1414-0
  CLC：
- Received：08 July 2013，
  
  Revised：2013-08-19，
  
  Accepted：23 August 2013，
  
  Published：2014-04
- Accepted：
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Jian-bin Luo, Shu-xuan Qiu, Yong-li Wang, et al. Preparation and Physicochemical Properties of Hydroxyapatite/Polyurethane Nanocomposites[J]. Chinese Journal of Polymer Science, 2014, 32(4): 467-475.
DOI：

Jian-bin Luo, Shu-xuan Qiu, Yong-li Wang, et al. Preparation and Physicochemical Properties of Hydroxyapatite/Polyurethane Nanocomposites[J]. Chinese Journal of Polymer Science, 2014, 32(4): 467-475. DOI： 10.1007/s10118-014-1414-0.

摘要

Abstract

In this study

nanohydroxyapatite/polyurethane (nHA/PU) composites with various contents of methoxypoly(ethylene glycol) modified nHA (0 wt%

10 wt%

20 wt% and 30 wt%) were prepared by solution blending process. The physicochemical properties of the composite membranes were investigated by Fourier transform infrared spectroscopy (FTIR)

X-ray diffraction (XRD)

Transmission electronic microscopy (TEM)

Differential scanning calorimetry (DSC)

Thermo gravimetric analysis (TGA) and tensile tests. TEM photos of the nanocomposites showed that the nHA was uniformly dispersed in the polymer matrix. The membrane with 10 wt% nHA showed the highest tensile strength which was about 75% higher than that of the pure PU membrane. However

the tensile strength decreased when high content (above 20 wt%) fillers were added

which was still higher than that of pure PU. TGA measurements suggested that the thermal stability of the membranes was improved owing to nHA fillers. XRD and DSC results illustrated that the crystallinity of PU soft segments decreased with the increasing content of nanoparticles in the composites.

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