Materials Literature
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Based on plate rolling process,the relationship between camber and cross wedge was researched. Through defining the thickness difference to average thickness,the condition without camber was the thickness difference to average thickness was equal before and after rolling.And then camber value and radius of curvature m…
In order to improve the breaking strength and weaving performance of cotton MVS yarn in color weaving,the influences of dyeing and finishing process on breaking strength of cotton MVS yarn were investigated.The results indicated that the maximum improvement of the yarn strength was obtained when pretreated by one bath…
This article deeply studied the cross section structure of apocynum venetum fiber,from combing,drawing,roving to spinning use the most strict principle as light fixed amount,slow speed,big ratio,strong shift and efficient protection when processing.Meanwhile,it tested and compared the different composition and yarn pa…
Nanocomposite oxides materials(Co3O4-CuO) as anode materials for lithium-ion batteries were synthesized via precipitation method.The crystalline structure and the electrochemical performance of the as-synthesized samples were investigated.The results show that the nanocomposite oxides materials are Co3O4-CuO nanocompo…
Due to the excellent mechanical properties,good biocompatibility and biodegradable absorption cha-racteristics,biodegradable magnesium alloys have been a hotspot in the field of medical implant materials.The latest research progress in biodegradable magnesium alloys as cardiovascular stents,bone fixation materials and…
The airless spray method had advantages of high coating efficiency,good coating quality,and benefited environmental protection and so on. The technical key in use of airless spray machines was described. It included the type of spray machine,nozzle selection,determination of spray pressure etc. Painting points for air…
Boron acid is very important to the control of the nuclear power station. The boron acid concentration drop has been analyzed and explained by using the reactivity balance formula. The conclusion is that the dynamic poison is the main reason. This paper is a good reference and guideline for the boron acid concentratio…
Mg-6Zn and Mg-6Zn-xNd alloys were prepared by melting-casting.Effect of Nd element on the microstructures of Mg-6Zn-xNd alloys was investigated using scanning electron microscope(SEM)operated at 20 kV equipped with an energy dispersive X-ray spectrometer(EDX).The results show that eutectic colony containing α-Mg and M…
The rare earth stabilizers of lanthanum stearate,cerium stearate and praseodymium stearate were synthesized.The results of FTIR and DSC analysis showed that the stabilizer and PVC(Poly(vinyl chloride))have fairly good compatibility because the rare earth element and stearate radical combined with electrovalent bond.Th…
Using thiophene,benzothiophene and n-hexane for preparing the simulated gasoline,a series of static adsorption and dynamic adsorption experiments for improving the Cu+-13X molecular sieve selectivity to thiophene was carried out.The results show that if increasing the initial mass fraction of thiophene in the simulate…
MPC/MMA copolymers were prepared by using 2-methacryloxyethyl phosphorylcholine(MPC) and methyl methacrylate(MMA) as starting materials,azodiisobutyronitrile(AIBN) as initiator,and ethanol as solvent.Their films were obtained by solvent evaporation method.The hemocompatibility of the copolymers was studied by adsorpti…
A phosphorated epoxy resin/nitrogen-containing phenolic aldehyde curing agent(ED/MFP) system,which uses ED as matrix,MFP as curing agent and 2-methylimidazole as curing accelerator was investigated.The corresponding curing parameters of ED/MFP determined by dynamic DSCmethod,infrared tracking experiments and extrapola…
Polypropylene(PP) composites with polybutyl acrylate(PBA) and micro-silica modified by ball-milling grafting polymerization were prepared by a concentional melt compouding technique. The mechanism of the graft polymerization and the structure of the microcomposites were studied by infrared spectroscopy (IR),thermograv…
Amino polysiloxane microemulsion(ASE) was prepared by a blended nonionic surfactant composed of alkyl polyoxyethylene ethers.The film morphology and hydrophilic-hydrophobic properties as well as application performance of ASE on monocrystalline silicon wafer substrate were investigated by atomic force microscope and c…
Poly-Si TFT has become the hot topic in the field of display currently due to higher field-effect mobility than that of a-Si TFT.During the fabrication of polycrystalline silicon thin film and its TFT devices,it is observed that polycrystalline silicon thin film showes different electrical properties.After analysis,we…
With the expanding application of enzymes in leather industry, new enzymes are continuously developed and play an important role in reducing cost、improving efficiency and reducing environmental pollution. It was reviewed that the application and research progress of enzyme in leather industry.
In order to compare the effect of oxysalt in electrolytes on the film thickness and oxidation time in the process of high-voltage anodic oxidation of aluminum alloy 6063,the oxidation films were prepared by anodic oxidation in three electrolyte systems of Na2SiO3,Na2HPO4 and NaAlO2. The film thickness was determined b…
Based on the longer life of fatigue crack initiation and small crack propagation,considering the crack inspection technique,the total fatigue lives of titanium alloys were divided into three stages: crack initiation life(crack grow form 0 mm to 0.3 mm),small crack propagation life(crack propagation form 0.3 mm to 2 mm…
The outermost layer of human skin,the stratum corneum,is responsible for its barrier function.Before topically administered drugs act either dermally or transdermally,they have to penetrate into the deeper skin layers or permeate the skin.However,most topically administered drugs do not have the ability to penetrate t…
Molecular dynamics method was employed to investigate the effects of the reaction layer formed near the surface region on CF3+ etching of Si at different temperatures.The simulation results show that the coverages of F and C are sensitive to the surface temperature.With increasing temperature,the physical etching is e…