Synthesis of Titanium Pillared Clay Nano Functional Material
Polymer/nano-clay composites have better barrier properties, fire resistance and higher mechanical properties since nano-caly particles were reinforcing the composites on a molecular scale. Titanium pillared clay was made by introducing polymeric titanium oxide cations into the bentonite structure by cation exchange. They were characterized by surface area, small angle X-ray diffraction, and thermal analysis. The results show that thermal stability of the TiO 2-PILC is significantly increased. BET surface area of TiO 2-PILC dried at 50℃ in air for 12h is 202m 2/g, that of TiO 2-PILC calcinated at 500℃ for 12h is 183m 2/g, which are much larger than that of unpillared bentonite(11m 2/g).
Objective To study the best extracting technology of Compound Taizishen Granule prescription.Methods The total polysaccharides and total saponins were determined by UV spectrophotometer.With the content of total polysaccharides and total saponins as comprehensive indexes,orthogonal test was applied to investigation of the water addition,extraction time,and extraction times for optimizing the best extracting technology.Results The best extracting technology was using 10 times the amount of water,extracting 3 times and 1.5 h per time.Conclusion The extraction technology is safe and effective,which can be used as extraction for Compound Taizishen Granule prescription.