Materials Literature
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With the improvement of demands of environmental protection in the world, the development of new environmental protection free-cutting copper alloy was one of the hotspots in current study. According to the free-cutting mechanism of lead brass and the design principles of environmental protection free-cutting copper a…
The nesquehonite whisker is synthetized by low-temperature aqueous solution polymerization.Effect of different surfactants on crystal whisker morphology have been studied. The study finds that the inorganic surfactant is better than organic,especially when using the potassium dihydrogen phosphate as the surfactant,the…
A hollow molecular imprinted polymer(H-MIP)was synthesized on silica as a sacrificed material by using 4-methyl dibenzothiophene(4-MDBT)as template,4-vinyl pyridine(4-VP)as function monomer.The sorbents were characterized by the Fourier transform infrared spectroscopy,nitrogen adsorption and scanning electron microsco…
In this research,cholesterol,hydrogenated phosphatidylcholine and phosphatidylethanolamine pegol were used to prepare gemcitabine hydrochloride liposome injection.α-Tocopherol used as antioxidant,air expelled by nitrogen and the preparing temperature maintained at 50℃ are important conditions to avoid the formation of…
One crystalline phase can exhibit different morphologies and growth orientations.Unit cell is the basic unit for the construction of crystals and the growth directions of the crystals are related to the macroscopic morphologies and properties of the crystals significantly.By combining the crystallography theory,experi…
Li4Ti5O12 was used as additives to improve the performance of the PEO-based composite polymer electrolyte(CPE).The properties of electrolyte films were characterized using EIS,XRD and SEM.The effect of the Li4Ti5O12 on the performance of the CPE was discussed.It is found that crystallinity of CPE not only is decreased…
This paper tests and analyses the tensile property,air permeability,drapability,wrinkle recovery performance and stiffness and flexibility of pure silk crepe fabric.Then fuzzy comprehensive evaluation system is used to establish the mathematical model analysis in order to analyse their comprehensive performance.The ex…
Nano cordierite powders were used as raw materials.Sodium polyacrylate,polyvinyl alcohol and polyethylene glycol were acted as dispersant,adhesive and plasticizer,respectively.The cordierite sheets were prepared by aqueous tape-casting.The drying process and drying kinetics were investigated.It turned out that the dry…
The electrochemical oxidation of zinc O,O,O′,O′-tetrabutyl bis(phosphorodithioate)(ZBPD)on glassy carbon electrode in DMF-H2O solution was studied by cyclic voltammetry and chronocoulometry.The influences of temperature,scan rate and ZBPD concentration on the electrochemical characteristics of ZBPD were also investiga…
A health index from Chinese state departments indicates that the incidence of hair loss in Chinese adult population is up to 30%,the same trend with the developed country.Hair follicles produce hairs that fulfill a number of functions not only thermoregulation,collecting sensory information,protection against environm…
Zinc electrolysis anode mud is treated by the following working procedure: ball milling,roasting,leaching and so on,the lead concentrate can be got with lead content ≥45%,silver content ≥0.045%,and the filtrate with zinc content ≥25g/L,manganese content ≥90g/L can be got;filtrate can directly return to zinc electrowin…
The authors study the heat treatment process of quenching and tempering for 5NiCrMo low temperature steel and analyze the influence of tempering temperature on the steel structure and mechanical properties. Results show, after quenching and tempering treatment, a complex forms with tempered martensite as base and cert…
Vanadium redox flow battery(VRB),which is regarded as one of the most promising devices for massive electricity storage in renewable energy and energy-saving processes,has attracted much attention,because of its long life-time,simple configuration and independent power and capacity ratings.Proton conductive membrane,o…
The optimum curing condition parameter of melting temperature at 160℃, curing temperature at 160℃ and total curing time at 4min, was gained by the orthogonal experiment, based on the effect analysis of different curing condition on film performance.
The Al2O3/TiO2 coating has been applied on Mg-8.5Li Mg-Li alloy material surface using oxygen-acetylene flame spraying technology,the coating structure morphology has been investigated.The thermal vibration resistance and anti-neutral salt solution corrosion of Al2O3/TiO2 coating being applied by oxygen-acetylene flam…
The absorbent capability of fibers can be improved greatly by introducing carboxymethyl group into the cellulosic fiber structure.Carboxymethyl cellulose(CMC) absorbent gauze with different substitution degrees(DS) was prepared using common cotton yarn as raw material through controlling the amount of chloroactic acid…
Electrodeposition of zinc-tin-nickel ternary alloy on the surface of copper foil from pyrophosphate system was investigated.Effect of current density,temperature,pH on the appearances of planting were discussed respectively.Process conditions for electroplating zinc-tin-nickel ternary alloy on the surface of copper fo…
The reduction and nitridation mechanism for preparation of VN with V_2O_5 as raw material and carbon powder as reductant was studied,the effects of mass ratio of C to V_2O_5 and temperature were examined,and the products analyzed.The results show that the reduction of V_2O_5 is successive,and indirect reduction occurs…
Co2-Z type ferrite was successfully prepared by using mixed nitrate powders via spray drying as the staring mattering materials. X-ray diffraction patterns(XRD), scanning electron microscope(SEM) and vector network analyzer have been used to characterize the crystal structure, morphology and electromagnetic property.…
The effects of different main salts on the deposition rate and current efficiency of copper plating from HEDP system, and on the appearance, thickness, and adhesion strength of copper coating were studied by testing in Hull cell and square cell. The plating bath (pH 9.0) is composed of HEDP 160 g/L, Cu2+ 10 g/L, and K…