Materials Literature
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The research progress of thermal expansion of magnesium alloys and magnesium matrix composites is introduced briefly,and the temperature,the volume fraction of reinforcement,reinforcement particle size,the shape of reinforcement particle,the kind of reinforcement particle and heat treatment and others which influence…
Using Hainan kaolin as raw material to prepare alumina powder can reduce the cost,improve the kaolin's additional value,and have significance role to Hainan economic development. Orthogonal experiment was carried out to study the influence of concentration of HCl,the temperature of acid and drygelatin calcining temper…
The advantages,anticorrosion mechanism and the research status of chlorinated polyether resins,along with their application in coatings were introduced.The application prospects of chlorinated polyether resins were forecasted.
Objective:To investigate the effect of celecoxib on the expression of GRO-α in retina of diabetic rats.Methods:Forty healthy male SD rats were divided randomly into four groups as normal control group,diabetes group(DM),diabetes+distilled water group(DM+DW),diabetes+celecoxib group(DM+C),with 10rats in each group.Diab…
The wet processing of COOLMAX/cotton moisture-management blends was described.Singeing temperature was controlled at 900℃,alkali dosage was 8～10 g/L for scouring,and 180～190 g/L for mercerizing,setting temperature prior to dyeing was 195℃,dyestuffs selected should have excellent fastness to light and perspiration,and…
By use the Japanese ZSX Primus Ⅱ X-ray Fluorescence Spectrograph,it does the basic static correction with fused glass disc and empirical coefficient,and then it determines the component of 6 national standard samples,4 monitoring samples and 21 mixed standard samples confected by standard sample and pure value reagent…
Jiubao Bridge is the eighth across-river bridge on the Hangzhou Qiantang River and the first steel-concrete arch bridge with special shape using wholly incremental launching construction in China. The bridge locates in a severely corrosive ocean weather environment. In this paper, a corrosion protection project design…
The corrosion behavior under coatings with a point defect was investigated in situ by means of scanning Kelvin probe in both salt spray test and cyclic wet-dry immersion test.The results showed that the Kelvin potential distribution was identical in both the tests due to the same division of coating surfaces:defect ar…
To reduce wood drying energy consumption,the authors developed a solar drying kiln for drying wood.They fixed heat pipe and holistic collectors,and used paraffin to improve heat collecting and storing capacity.The kiln was used to dry a stack of poplar lumber and compared it with air and conventional kiln dried poplar…
Emulsion polymerization method is used to synthesize graft copolymers as a new paper sizing agent with cassava starch as the main raw material,which is grafted with fluorinated acrylate monomer(FA),using ammonium persulfate(APS)as initiator.The results of single factor analysis indicated that when reaction temperature…
A two-component trivalent chromium passivating agent was introduced.The component A is composed of waterborne acrylic epoxy resin 460 g/L,and the component B contains CrCl3 250 g/L and NaNO3 25 g/L.An online continuous passivation process for hot-dip galvanized steel wire strand was developed using the passivating age…
The elastic torsion restraint theory of elastic thin-walled open section members is based,analysis of steel abnormity-section columns geometrical properties.Calculated steel T-shaped column in the main fan-shaped section of coordinates,the main fan of static moment,moment of inertia of the main fan and geometrical par…
With direct current and single magnetron sputtering pattern,Cr films were prepared on single crystal silicon by magnetron sputtering technology under different unbalanced coefficient of magnetron.AFM,SEM,four point probe tester and MTS nano indenter XP system were used to characterize the structure,electrical resistiv…
With industrial grade DCPD,the synthesis process and paint performance of oleic acid modified DCPD unsaturated polyester resin were studied,experimental results showed that the synthetic resin not only had good air drying,but also greatly improved the flexibility and greening resistance by means of addition of 5%~9% o…
Through adopting aluminizing to 35CrMo steel in the way of solid powder,microstructures observation and composition analysis to aluminizing layer in SEM,and corrosion,high-temperature oxidation and micro hardness tests to 35CrMo steel,it is verified that aluminizing layer has excellent performance when 35CrMo steel al…
In this paper the whole process of the development of a low smoke halogen-free flame retardant and fire re-sisting multicore pre-fab branched cable with steel tape armour is presented.The establishment of the factory specifi-cation and determination of the cable construction and manufacturing process are related respe…
Helium release and structure evolution of Zr tritide with fct-ZrH1.801 phase were investigated.It proves that the 3He release fraction is between 10-6 and 10-5 while n(3Hegen)/n(Zr)is smaller than 0.27.The 3He generated is trapped deeply in the tritide.The release fraction varies in wave with the temperature change be…
Combined with the thermodynamic model for ink droplet spreading and penetration in ink-jet printing and a kind of a simplified textile fabric permeability model,the authors established a new dynamic model for describing the spreading and penetration of ink droplet on thin textile.By utilizing that model when ink is de…
Angular dependence of the exchange bias in ferromagnetic/antiferromagnetic systems is an important issue in the study field of exchange coupling.Angular dependence of the astroid curve,the switching field,the critical angular and the energy density landscape were studied with the help of the Stoner-Wohlfarth model.The…
Polypyrrole(PPy) nanoparticles doped with dodecylsulfate sodium(SDS) were successfully synthesized by rapid chemical oxidative polymerization of pyrrole at 0 oC～3 oC using FeCl3 as an oxidant.Ag sol was prepared by chemical reduction method.The PPy-Ag nanocomposite was prepared by mixing PPy and Ag nanoparticles toget…