Materials Literature
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To determine the origin of the radiolytic product singlet state of hydrocarbons, the effect of water on the γ-radiolysis and pulse radiolysis of cyclohexane (C6H12)-tributylphosphate (TBP) solution was studied.In the γ-radiolysis of C6H12-TBP solutions, the addition of water can remarkably lower the yield of the acid…
Disperse modified nano-SiO2 powder has been prepared by chemical precipitation method,using self-prepared Na2O·3.1SiO2 solution as raw material,silane coupling agent KH-560 and KH-570 as modifying agent,HCl as precipitant and polyethylene glycol as surfactant.We focused on the influence and process of silane coupling…
The solubility of supercritical carbon dioxide in Polylactic acid(PLA) and PLA/clay nanocomposite was measured according to volumetric method.Effect of clay on the solubility was investigated.Results showed that the addition of clay greatly decreased the dissolution rate of supercritical carbon dioxide in PLA.The solu…
Plain low-carbon steel with 0.2 wt % carbon(steel 20)was first treated with plasma nitriding and then was processed by salt bath chromizing at 500 ℃ for 1h,5hs and 12hs,respectively.The microstructure of chromized layers was studied by means of optical microscopy,X-ray diffraction(XRD),scanning electron microscopy(SEM…
Novel flame retardant of penthaerythritol phosphite was synthesized from pentaerythritol and triphenyl phosphite.Cellulose fabric was finished by the flame retardant using toluene-2,4-diisocyanate(TDI) as crosslinking agent.Chemical structures of the flame retardant agent and the treated cotton fabric were analyzed by…
The fumed silica was dispersed in butyl acetate,and the hot stamping adhesive and proper amount of the dispersion were blended.The effects of silica content on the viscosity,shearing strength and stamping performance of hot stamping adhesive were investigated with rotational viscometer,universal material machine and h…
By using TG-DSC thermal analysiser,the thermogravimetric analysis of reaction mixture of sinthesizing TiB2 by carbothermal reduction was carried out.By using omnirange isothermal thermogrametic method and XRD analysis,the reaction kinetics of synthesizing TiB2 powder by carbothermal reduction was studied.The approach…
For 500 kV transmission line DC deicing,a displaceable multi-purpose DC deicer based on IGBT(Insulated Gate Bipolar Transistor) is presented.The 20 MW DC deicer is composed of four power vans.Each van has six VSC(Voltage Sourced Converter) with chop circuit,which are connected to 35 kV system through the six secondary…
The graft copolymerization of acrylamide(AM) and hydroxyethyl cellulose(HEC) initiated by ammonium potassium and hydrogen sulfite sodium in aqueous medium was synthesized under nitrogen atmosphere.The effect of various factors such as reaction time,reaction temperature and intiator amount were investigated in terms of…
The physical and chemical properties of three sorts of organic silicone(polydimethlsiloxane,hydroxy silicone oil and amino silicone oil) were tested,and their application properties in chemical fiber of wig were compared.Appropriate organic silicone emulsion was selected.The results showed that the appropriate organic…
The carboxyl-terminated hyperbranched polyesters were synthesized with citric acid as monomer,SOCl2 as acylchloride reagent,THF as solvent by microwave instrument.The influences of the amount of catalyst,polymerization time and temperature on esterification rate,the preparation process were studied.And it was characte…
The self-propagating reactions in Al/Ni reactive multilayer films were numerically investigated using finite difference method.The reaction temperature,reaction velocity as well as the morphology and width of the reaction zone were studied and discussed in detail.Results indicate that the reaction in Al/Ni multilayer…
The production capacity of centrifuge of HDPE device was calculated and analyzed from increase production and energy saving.Under the condition of the ratio of polymeric soliquoid(m3) to feed gas(t) is 3.5,the capacity production was defined.The production could be increased for centrifugal subsider.
The self-prepared niobium hydroxide,sodium carbonate,and potassium carbonate were used as raw material,citric acid (CA) and ethylene glycol (EG) were used as chelating agent and esterification agent separately.Potassium sodium niobate (KNN) thin films on SiO2/Si substrates were prepared by the hydrothermal-assisted po…
Nanocrystalline Sb2O3(1) was prepared by solvothermal method using SbCl3 as the precursor.The crystal structrue and shape of 1 were characterized by XRD and SEM,respectively.The crystal form and pattern of 1 were controlled through changing the solvents or adjusting the pH value.1 belongs to tabulate antimony oxide,th…
The technical regulations of USA,Japan,EU and China for home textiles and the standards of ASTM,JIS,BS,and GB/FZ are compared with the difference of the technical regulations and standards of China for home textiles pointed out.China's regulations and standards for home textiles need to be improved to raise Chinese ho…
In the EU-FP7 project LOTUS an inkjet printing platform is developed including ink formulations and fast curing processes at low substrate temperature. This metallisation process is aimed for device fabrication by costeffective roll-to-roll production. Here, the specifications of metallisation patterns for different t…
Electochemical deposition from solution is a film formation method with advantages of short deposition time and mild conditions. Thereby,obtaining solution of insoluble organic semiconductors(such as perylenetetracarboxyldiimide,PTCDI) for electro deposition is critical to getting their films.In this article,the disso…
In order to further study the autophagy induced by fullerene family and its derivatives,nano-C70,C60Cl6 and C60Ph6 were selectively investigated by means of fluorescence microscope,transmission electron microscope and western blot.The results show that,nano-C70,C60Cl6 and C60Ph6 can form crystal structures in water an…
Aiming at properties deterioration of 10CrNi3MoV steel after hot work,heat treatment technical test of cycle quenching was performed,and mechanical properties test,microstructure observation and estimation of grain size were carried out.The results showthat a new quenching and tempering technology,austenitizing at835℃…