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Journal of Inorganic Materials

Journal of Inorganic Materials >

2009 , Vol. 24 >Issue 3: 475 - 479

DOI: https://doi.org/10.3724/SP.J.1077.2009.00475

Research Paper

Influence of Nano-hydroxyapatite on the Mechanical Properties of Short-carbon-fiber/Poly(methyl methacrylate) Bio-composites

  • ZENG Li-Ping ,
  • CAO Li-Yun ,
  • HUANG Jian-Feng ,
  • GUO Shen
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  • 1. Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi’an 710021, China; 2. Polyester Films Research & Development Center, Fuwei Films Co. Ltd, Weifang 261061, China

Received date: 2008-08-11

  Revised date: 2008-09-25

  Online published: 2009-05-20

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Abstract

An in-situ processing combined with solution co-mixing approach was developed in the preparation of poly(methyl methacrylate)(PMMA) matrix bio-composites using hydroxyapatite (HA) nano-particles and short carbon fiber (Cf) as reinforced materials. The influences of HA particles on the mechanical properties and microstructures of the HA-Cf/PMMA composites were investigated. The mechanical properties were tested by universal testing machine. The phase compositions and fracture surface morphologies of the asprepared HA-Cf/PMMA composites were characterized using X-ray diffraction (XRD), transmission electron microscope (TEM), field emission scanning electron microscope (FESEM) and Fourier transform infrared spectroscope (FT-IR). The results show that the interface bonding between HA and PMMA matrix and the mechanical properties of HA-Cf/PMMA composites are obviously improved by surface modification of HA with lecithin as coupling agent. With the increase of lecithin-modified HA mass fraction, the flexural strength, tensile strength, compressive strength, flexural modulus and tensile modulus of the as-prepared HA-Cf/PMMA composites firstly increase and then decrease. When the surface modified HA particles mass fraction is 8%, the dispersion of HA nano-particles in PMMA matrix is uniform and the flexural strength, tensile strength, flexural modulus and tensile modulus of the HA-Cf/PMMA composites reach the maximum value.

Key words： nano-hydroxyapatite (HA); bio-composites; mechanical properties

Cite this article

ZENG Li-Ping , CAO Li-Yun , HUANG Jian-Feng , GUO Shen . Influence of Nano-hydroxyapatite on the Mechanical Properties of Short-carbon-fiber/Poly(methyl methacrylate) Bio-composites[J]. Journal of Inorganic Materials, 2009 , 24(3) : 475 -479 . DOI: 10.3724/SP.J.1077.2009.00475

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