摘要
用纳米TiO2为原料,以海藻酸钠(SA)为基体,采用共混法制备SA/TiO2纳米复合物。通过傅立叶红外光谱(FTIR)、热重分析(TG)、透射电镜(TEM)等手段对该体系进行了表征。结果表明:由于纳米TiO2粒子的引入,SA分子FTIR的某些特征峰的波数发生明显变化;纳米TiO2在复合物中的分散性较好;复合材料的热稳定性高于纯SA薄膜;此外,复合材料的力学性能有所提高。
With titanium dioxide （TiO2） nano-particles as raw material and sodium alginate （SA） as matrix, SA/TiO2 nano- composites were prepared by blending method. Then the nano-composites were characterized using Fourier transform infrared spectra （FTIR）, thermogravimetry （TG）, and transmission electron microscopy （TEM）. The results indicated that some wave numbers of FTIR characteristic peaks of SA are changed evidently because of the introduction of nano-TiO2, and the nano-TiO2 particles may welt dispersed in the SA/TiO2 nano-composites. Moreover, the thermal stability and the mechanical performance of SA/TiO2 nano-composites are better than those of pure SA film.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2009年第8期33-35,共3页
Food Science
基金
湖北省教育厅自然科学重点项目(D200629003)
催化材料湖北省重点实验室开放基金项目(CHCL0506)
