20-22 May 2015
Asia/Bangkok timezone
The Centennial Celebration of General Relativity Theory and 80 Years of Thai Physics Graduate

Preparation and Characterization Chitosan/Hydroxyapatite Composites from Waste for Bio-applications

21 May 2015, 13:00
3h 30m
Board: MNA-71
Poster presentation Material Physics, Nanoscale Physics and Nanotechnology Poster-3

Speaker

Mr Chalongwut Boonpratum (Department of Physics, Faculty of Science, King Mongkut’s University of Technology Thonburi, Bangkok, THAILAND 10140)

Description

In this research, chitosan/hydroxyapatite (HAp) composites were prepared using precipitation method. The calcium oxide from waste chicken eggshells as a calcium source was mixed with nitric acid. Chitosan of shrimp solution different percent weight from 1 -15 were added to phosphate solution. The both of the solution were mixed, stirred for 6 h, precipitate forming a chitosan/HAp composite and annealed at 100 ${}^{\circ}$C for 4 h. The structure properties and morphologies of composites were investigated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The results showed that the crystal structure of composites was decreased with increased %wt of chitosan. FTIR was used to investigate the major transmitting bands of all HAp and chitosan. The amounts of chitosan were increased as increased the particle size of composites. These experiments showed that the chitosan can be mixed into hydroxyapatite for composites material.

Primary author

Mr Chalongwut Boonpratum (Department of Physics, Faculty of Science, King Mongkut’s University of Technology Thonburi, Bangkok, THAILAND 10140)

Co-authors

Dr Ekachai Hoonnivathana (Department of Physics, Faculty of Science, Kasetsart University, Bangkok, THAILAND 10900) Dr Kittisakchai Naemchanthara (Department of Physics, Faculty of Science, King Mongkut’s University of Technology Thonburi, Bangkok, THAILAND 10140) Prof. Pichet Limsuwan (Department of Physics, Faculty of Science, King Mongkut’s University of Technology Thonburi, Bangkok, THAILAND 10140)

Presentation Materials