The Microstructure and Thermal Performance of Phenolic Resin(PF)/Rectorite(REC) Nanocomposites Produced by High Pressure Method
High pressure method was used to produce phenolic resin(PF)/rectorite(REC) nanocomposites.The microstructure and thermal performance of the nanocomposites was studied by X-ray diffraction(XRD),transmission electron microscope(TEM),and thermal analysis.The experimental results show that exfoiated resin/clay nanocomposites can be formed under high pressure conditions by the intercalation of polymeric molecules without interlayer polymerization.Morphological studies using TEM and XRD indicated that the clay particles within the phenolic resin was exfoliated and dispersed homogenously in the phenolic resin,and the thermal performance of the nanocomposites changed obviously.
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.