Materials Literature
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In view of poor anticorrosion effectiveness of brush plated paints for the inner bottom plate of No. 4 crude oil tank, the causes leading to corrosion of the inner bottom plate were analyzed. It was found that corrosion of the inner bottom plate of the crude oil tank was closely related to operation quality, salt cont…
Titanate nanotubes with a high ratio of surface area and photochemical stability have been studied widely in the photocatalytic field.The modification methods of titanate nanotubes are adopted to broaden the photoabsorption region and improve photo-quantum efficiency.The recent progress in three modification methods(m…
Four corresponding Zn(II)、Ni(II)、Mn(III)、Cu(II) transition metal complexes were herein synthesized using N,N′-bis(2-hydroxy-1-naphthaldehyde) ethylenediamine reduction schiff base as ligand,and their structures were characterized by elemental analysis,IR spectroscopy and thermogravimetric analysis.The crystal structur…
In this article are introduced the fiber characters,its pure fiber spinning process flow and main processing measures,and high relative humidity control that should be made in the processes of polysulfone fiber.Polysulfone fiber should be pre-treated with anti-static agent and lubricated with oil due to its high volum…
A series of Ni/AC catalysts have been prepared and used as catalysts for hydrogenation of acetol to 1,2-propanediol.The results show that the optimal catalyst has been prepared under condition as follows:loading amount of Ni/AC 15%,calcined at 550℃ for 4 h,reduced at 400℃ for 4 h.The acquired catalysts are nickel meta…
The dye-sensitizers of dye sensitized solar cell(DSSC) enjoy wide spectral Absorption band,which has decisive effect on the photoelectric conversion efficiency(η).In recent years,the sensitizers have been investigated widely and rapid development has been achieved.In this paper,the design and synthesis of different dy…
Nano-zinc and nano-Fe3O4 particles were prepared by using roller vibration dry method at room temperature and chemical coprecipitation respectively,and then ZnFe2O4 nano-particles were obtained through the hydrolysis reaction of zinc and Fe3O4.The particles were characterized by XRD,TEM and Mssbauer spectra.The resul…
The nano-scale Ni(OH)2 doped with Co was prepared by precipitate transformation method,and its structure and morphology were characterized by XRD and TEM.The electrochemical performances,especially high rate discharge performance,of the material were investigated by cyclic voltammetry(CV) and constant current technolo…
Pechini method was used to prepare the nano-phased active oxides,in which RuO2,IrO2 and PdO were the main components.Mono-phased oxides can be obtained when suitable temperatures are selected.Heat treatment has great effects on crystal size of RuO2,IrO2 and PdO.Though the size increases with temperature,there is not a…
Aiming at error of wind for dust remove revolved in national standards Technology Specifications of Dustproof in Foundry-2007,upon calculation method of wind for dust remove from cupola,the causes of error have been analysed hence certain reference for design and construction of cupola dust remove system.
Objective To establish a method for determining the content of N-trimethyl chitosan(TMC)and estimating the coating efficiency of TMC coated multivesicular liposomes(MVLs).Methods The content of TMC was determined by means of conductivity,and the linearity,the precision and the recovery of the method were also studied.…
With SHGA215C sectional warper as an example,the designs of major process parameters for sectional warping are presented,including the formulas for displacement calculation,the relation of winding density displacement and affecting factors,the yarn tension setting and affecting factors,the warp section width setting a…
The magnetic properties in La1-xPrx(Fe0.862Al0.138)13(x=0,0.1,0.2,0.3) have been investigated. The compounds exhibit NaZn13-type cubic structure after annealing at 1233K for 15 days. During the heating process,they undergo the first-order magnetic phase transition process from ferromangtic to antiferromangtic. The pha…
Applied stearic acid sodium as modifier,the flame retardant of polyethylene filled with magnesium hydroxide was investigated.And the mechanical properties and flame retardant properties of composite materials after modified were compared with that of without modified.The results showed that the mechanical properties d…
Mesoporous silica was used as a support to immobilize enzyme (laccase) that were important in chlorphenol degeneration research. To biomimetically synthesize the mesoporous silica with an ordered three-dimensional (3D),hexagonal structure,cationic surfactants,alkyltrimethylammonium bromides (CnTAB,n = 12,14,16,and 18)…
The camphor sulfonic acid(CSA) doped polyaniline was polymerized in m-cresol(m-c)and chloroform(ch)mixed solvent.The doped polyaniline could not only maintain a good solubility but also enhance their electrical conductivity.The results showed that the electrical conductivity of PANI-CSA film could reach 400 S·cm-1 whe…
Microstructure evolution of weldment and matrix in quenching and tempering(QT) treated N80 ERW casing was done by scanning electron microscope(SEM) and electron backscattered diffraction(EBSD).The results show that after QT treatment,{101}〈101〉 texture in weldment is enhanced.Weak {101}〈101〉 texture in matrix changes…
In this paper ,the hot melt pressure sensitive adhesive tape was prepared by SIS copolymer and butyl rubber as base material .Effect of other raw materials ,such as SIS,butyl rubber,plasticizer and antioxidant ,on properties of hot melt pressure sensitive adhesive tape are discussed.
The cold deep drawing of commercial pure(CP) titanium is difficult,and the microstructure and mechanical properties vary notably during the process.The cold deep drawing of a hemispherical surface part was investigated,and the effect of deformation mode on the microstructure and mechanical properties were analyzed.Hea…
Currently, how to effectively strengthen practical ability of grassroots police is the prior task that public security department is facing. Under such circumstances, studying and exploring grassroots police’s weapons equipment and reducing its unnecessary casualties are of great significance. From the status of the g…