NANOCOMPOSITES OF CELLULOSE-CARBONATED HYDROXYAPATITE:MICROWAVE-ASSISTED SYNTHESIS AND CHARACTERIZATION
The nanocomposites of cellulose-carbonated hydroxyapatite (CHA) with CHA nanostructures dispersed in the cellulose matrix were fabricated by the microwave-assisted method using the cellulose solution, CaCl2, and NaH2PO4. The cellulose solution was previously prepared by the dissolution of microcrystalline cellulose in NaOH-urea aqueous solution. The influences of the heating time and cellulose concentration on the products were also investigated. The X-ray powder diffraction (XRD) and Fourier transform infrared spectrometry (FT-IR) results indicated that the obtained products were the cellulose-CHA nanocomposites. The scanning electron microscopy (SEM) micrographs showed that the CHA nanostructures were dispersed in the cellulose matrix. The thermal stability of the cellulose-CHA nanocomposites in air was investigated using thermogravimetric analysis (TGA) and differential thermal analysis (DTA). This method is simple, fast, low-cost and suitable for large-scale production of cellulose-based nanocomposites.
microstructure nanocomposites cellulose carbonate hydroxyapatite microwave
Jia Ning Ma Mingguo Sun Runcang
Engineering Research Center of Forestry Biomass Materials and Bioenergy, College of Materials Science and Technology, Beijing Forestry University, Beijing,100083, China
国际会议
广州
英文
256-259
2010-11-08（万方平台首次上网日期，不代表论文的发表时间）