Materials Literature
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An imidazoline corrosion inhibitor was synthesized from diethylenetriamine and oleic acid using dimethylbenzene as a water carrying agent,and the quaternization took place with benzyl chloride.The synergistic inhibition effect of imidazoline inhibitor with organic compounds and the corrosion inhibition to A3 steel in…
In order to upgrade the bowling quality of the blank sheet of the wire clothing,it is necessary to have a quality and precision bowling roller.Analysis is done to the bowling roller defection,failure and the appearance of the bowling roller with hard alloy including the inducement to the defection and the failure.The…
Bimetal composite copper strip is a basic material for making new communication cable,which is the major raw and processed material for copper wraps aluminum cable and copper wraps steel cable.The key process research about casting and producing is introduced in this text,and the effect of chemical composition and pro…
The PPy-MWNTs nano-composites were synthesized by in-situ chemical polymerization.The effect of rate of charge for Py/MWNTs on the constitution of the composites was investigated by FT-IR,XRD and element analysis.The morphology,diameter of the composites were characterized by SEM.It is proved that water/ethanol medium…
PAE is an active macromolecular resin.It is more difficult to control its stability when its solid content is high.This paper discussed a low-cost preparation method of PAE with 35%solid content and compared it with commercial wet-strength agents.The results show that a PAE resin with a viscosity of 50~60 s can be pre…
Using ANSYS/LS-DYNA software, numerical simulation research on the process of shaped charge jet formation and penetration into steel target were canied out, some kinds of physics phenomena and mechanical effect during the process were revealed, and the verification test has been put forward. The relative error between…
Objective:To investigate the effect of using magnesium phosphate cement (MPC) to fix the fractures of dog tibia plateau,and the changes of agglutination strength and the mechanism of agglutination and degradation. Methods:Thirty-eight dogs were divided into two groups,group A in:8,B in :30. The plateau fractures of al…
Objective To study the inherent toxicology of magnesium phosphate cement(MPC) for its clinical use. Methods The MPC diffusion was detected through unscheduled DNA synthesis(UDS) test.Physiological saline and NiSO4 were used as the negative and positive control,respectively.The marker of observation was the radio count…
SiC nanowires were prepared by thermal evaporation of Si onto PAN-carbon fiber at 1650℃ for deferent time. The XRD analysis, FESEM and TEM observation reveal that the as-grown products are single crystal β-SiC nanowires with needle shape radially standing on the carbon fiber surface. The SiC nanowires composed a tube-…
Aim To compare the structural and optical properties of ZnO thin film.Methods N-doped and un-doped ZnO thin films were epitaxially grown on glass substrates using RF magnetron sputtering technique.The process of synthesized samples through controlling the amount of argon,nitrogen and oxygen to got different properties…
WQ-50 was isolated from decayed wood and soil near hot spring in Hainan.It was identified as Bacilluscirculans by preliminary physiological and biochemical characteristics and genetic analysis.When fermented by CMC-Na culture medium,strain WQ-50 strain could grow well under PH 6 and 55℃.Under this condition,when ferme…
Using Agilent 4294A precision impedance analyzer,the C-V curve of metal/dielectric-thin-film/semiconductor structure is measured.The capacitance of HfO2 thin film is 1.24 nF obtained from collector region capacitance,thus,the relative permittivity of HfO2 thin film is 12.49 by calculation.
The optimal technology for the washing of silica gel was studied by orthogonal experiment,with impurity washing rate as index.Result showed that the optimal technology for the washing of silica gel was solid to liquid ratio of 3:1,stirring speed of 200rpm and washing at 70℃ for 2h,and more than 95% of water soluble im…
The effect of quenching temperature and tempering temperature on microstructure and mechanical properties of XCQ16 steel was studied by means of material tensile test, notch-bar impact test and Rockwell hardness. The relationship between microstructure and properties of the steel and the fracture feature were also dis…
A complex [Co(4,4′-bipy)(C9H8O3N)2(H2O)2]n with o-acetamidobenzoic acid and 4,4′-bipy has been syn-thesized.It crystallizes in the tetragonal space group P43212,with: a=1.606 48(11) nm,b=1.606 48(11) nm,c= 2.103 0(3) nm,V=5.427 4(9) nm3,Dc=1.487 g.cm-3,Z=2,F(000)=2 520.Final GooF=1.021,R1=0.044 7,wR2= 0.085 2.The crys…
The red fluorescence powder Gd,Eu co-doped yttrium borophosphate were prepared for the first time by the solid state reaction method with its precursor synthesized by co-precipitates of ammonium oxalate.The materials were characterized with X-ray diffraction,IR spectra and Fluorescence spectrum.Compared with(Y,Gd,Eu)P…
Polystyrene sulfonic acid(PSSA)doped water-borne polyaniline(PANI)/montmorillonite(MMT) clay composites were synthesized by intercalation polymerization in aqueous medium.The properties of the composites were characterized by fourier-transform infrared spectroscopy(FT-IR),X-ray diffraction(XRD),thermogravimetric analy…
Feathers modified by methyl methacrylate were applied to treat chrome contained tanning wastewater.Factors such as dosage,pH of chrome tanning wastewater and adsorption time on the treatment efficiency were discussed.The adsorption conditions were optimized,which was modified feather 1.5g,chrome tanning wastewater 22m…
A SBS/acrylates PSA(pressure sensitive adhesive) was prepared by ultraviolet radiation(UV) curing,and the polymerization process of adhesives cured by UV and PSA's structure were characterized and analysed by UV-DSC(differential scanning calorimetry),FT-IR(Fourier transform infrared spectroscopy) and other testing mea…
MoO_3 belts and MoO_2 rods were respectively synthesized through one controllable hydrothermal method.It has been found that the contents of the polyethylene glycol,PEG400 play a decisive role in determining the morphology and phase behaviors of specific products.We herein suggest that PEG400 acts as both protective a…