Materials Literature
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Palygorskite/γ-Fe2O3/carbon(C) nanometer composite material acting as magnetic adsorbent was prepared by palygorskite and spent bleaching earth as raw materials through the process of ferrous hydrolysis,decomposition and carbonization of organic matter in spent bleaching earth residue under controlled atmosphere durin…
OBJECTIVE To study the pharmacokinetics of the resveratrol(RES)polyphase liposomes in rabbits after oral administration.METHODS Plasma concentrations of resveratrol in rabbits after oral administration were determined by HPLC.The pharmacokinetics parameters were calculated by 3P97.RESULTS Plasma concentration-time cur…
Doxorubicin-loaded magnetic microparticles,using doxorubicin as model drug,Fe3O4 as core and vinylpyrrolidone as matix material,were prepared by inverse emulsion polymerization in this paper,and the drug release kinetics in vitro and in vivo were also measured.HPLC-FLD was utilized for the determination of ADM content…
The structure and dielectric properties of(Bi2-xZnx)(Ti2-xNbx)O7(0.4≤x≤1.0) ceramics were investigated.All samples sintered at 950~1 100 ℃ exhibit a single cubic pyrochlore structure according to X-ray diffraction analysis.Scanning electron microscope micrographs indicate that the grain size increases with the increas…
By the courses of ion exchanging,the modified MCM22 zeolites are prepared to remove trace olefins from aromatic hydrocarbons.The catalysts are characterized,and its performance in the reaction is investigated.The results show that the ion exchange will increase the amount of acid sites in catalysts.As the quantity of…
Cu2O/CNT complex film were successfully synthesized by the sol-gel method using Cu(OEt)2 and carbon nanotube as precursors.The composition and morphology of complex film were characterized by using X-ray diffraction(XRD) and scanning electron microscopy(SEM);the change of impedance and photoelectric properties was stu…
Galvanized steel sheet surface's chromising can increase the resistance of the sheet to corrosion,but chromate is a kind of poison that can pollute the environment,so many steel corporations and scientists are investigating the galvanized steel sheet's passivation without chromate.
To explore the microstructure and texture of the cold-rolled eutectoid steel,this paper obtained the specimen of the microstructure and texture through cold-rolled with different reductions which the severe plastic deformation samples were treated with some temperatures.Microstructures and textures of samples were ana…
Abatement of VOCs with cold plasma features good removal efficiency, but the mechanisms for the chemical reaction and discharging are not clear yet. Mechanisms for the chemical reactions in the plasma under AC discharging were discussed in view of the first-order and multi-order reaction, without regard to the interme…
Compared with pure aluminum,the mechanical properties of Al2O3 / TiC reinforced aluminum alloy through in-situ reacted process improves,but the long strip,hard and brittle Al3Ti in Al2O3 / TiC reinforced aluminum alloy seriously affects the comprehensive mechanical properties of aluminum alloy.So Al2O3/TiC reinforced…
Bioelectricity is the proper fundamental attribute. Blood vessel is the most important histological structure of human body. Ischemic pathological changes often accompany with vascular injury and bioelectricity derangement. Nowadays,it is confirm that ischemia can be cured through vascular repair by electrical stimula…
Acceleration sensors and strain sensors were used to study damping properties of a Fe-16Cr-2.5Mo alloy cantilever beam and a 18-8 stainless steel cantilever beam in frequency range of 20 Hz~ 400 Hz under identical experimental conditions.The results indicated that the acceleration and strain of the Fe-16Cr-2.5Mo alloy…
15%(volume fraction) SiCp/2009Al composite was fabricated by powder metallurgy process.The microstructures,mechanical properties,high-cycle fatigue properties and fatigue fracture surfaces of composite were investigated,respectively.The results show that the mound-like shape enhancing the roughness of composite is for…
The de-ketoxime type silicone sealant with good adhesion strength was prepared using the combined tackifying and catalyzing system and the active nano-fillers as the reinforting agent.The effect of this system on performance of the silicone was studied. Particularly the effects of amount of active nano-fillers, molecu…
TiO2 supported on activated carbon fibre was prepared by means of vacuum adsorption-hydrolysis method,by using sucrose as a binder between TiO2 and ACF.The silver nanoparticles were loaded on TiO2/ACF surface by dipping method.The Ag-TiO_2/ACF was characterized by BET,XRD,and SEM.The results demonstrate that photodegr…
The application condition of technology for desulphurization in the system of shift gas desulphurization was introduced and its merits and faults were described,suggestion for further improvement were also presented.
Al,Mg and its alloy have high strength and specific stiffness,as well as excellent ductility and tensile properties.After shot peening of the alloy,coarse-grain are smashed,it has come out a certain thickness of nano-crystals on the surface,which will greatly enhance the mechanical properties of Al,Mg and its alloy.In…
Maleic diester polymer fatliquor agents(PMF) were synthesized with hydrophilic monomer dodecanol maleic monoester(ME),dodecanol n-butanol maleic diester(DE),hydrophibic monomer methacrylic acid(MAA) and the initiator ammonium persulfate by the free radical water emulsion polymerization,in which more active monomer was…
High molecular polypropylene (MW ~ 1,100,000 g/mol) was added to a matrix of polypropylene with an average molecular weight (MW ~ 250,000 g/mol). By blending both materials we tried to combine the respective advantages regarding stability and processability. The long chains from the high molecular polypropylene act as…
The influence of B/N/Si doping and applied electric field on the geometrical and electronic structures of(9,0) carbon nanotube(CNT) is investigated through the calculations of DMol3 software package based on density functional theory(DFT).The results indicate that the doped atoms have little effect on the geometrical…