Materials Literature
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Through the analysis of p-xylene(PX) oxidation catalyst circulation system, the oxidation catalysts consumption model was developed. With cobalt manganese bromide consumption data, the model coefficients was modified. The error of the improved model was analyzed, and the data that relative error is within 10 % account…
Nickel-based Al2 O3 gradient ceramic coating and double ceramic coating were fabricated on the stainless steel surface by atmospheric plasma spraying.The microstructure and binding properties of the coating were studied.The results show that the structure of the gradient coating plays tightly with layered structure an…
Surface-enhanced Raman scattering(SERS)substrate is fabricated using nanopetals dealloying film decorated by Au nanoparticles,which nanopetals films are fabricated on W sheet by electrochemical co-deposition and dealloying process,and the Au nanoparticles are plasma sputtered on the surface to form SERS substrate.Corn…
The core-shell methyl methacrylate(MMA)/butyl acrylate(BA)/acrylonitrile(AN) composite latex modified by vinyl triethoxysilane (VTES) was synthesized by seed emulsion polymerization. The effect of VTES content on the properties of the latex and film was studied. The results show that the water absorption of latex film…
Property specificities of island-in-sea fiber and cotton fiber are simply introduced.The blended yarns with five different blending ratio are composed of island-in-sea fiber and cotton fiber using the method of mixing.Processing of weight per unit,speed and gauges etc.were set properly in opening and picking process a…
The triamcinolone acetonide and econazole nitrate oil/water gel was prepared,the quality of it was studied.To choose carbomer as gel base,liquid paraffin,tween-80,span-80,propylene glycol, ethanol, etc. as excipients, the gel was prepared. The properties, pH and stability was investigated.The pH of the gel was about 4…
The complexes of lanthanide rare earths with salicylal o-aminophenol Schiff bases were synthesized,and their properties of IR,UV and luminescent spectra were investigated.Compared with the ligand,the infrared absorption by C=N bond of the complexes decreased,and a new long wavelength absorption band appeared in the ul…
Along with the ECC(Engineered Cementitious Composites) application promotion step by step,domestic research on the performance of ECC has gradually become a hot spot.This experiment studied the adding rubber powder artificial defects affect the performance of ECC,respectively in 40 mesh,60 mesh,80 mesh and 100 mesh ru…
In the paper,polycrystalline diamond compacts(PDC)were synthesized under different sintering temperature and time by invariable pressure and their wear resistance were tested.After treatment at 750℃in air,wear resistance of these PDC were tested again.The results of the experiment show that the G-ratio increases first…
The AN SYS parametric design language was used to established the mesoscale representative volume element( RVE) model to estimate effective elastic properties including elastic modulus and Poisson's ratio of explosive B. Results show that the calculated results agree with that from the literature. The influence of par…
A mannich corrosion inhibitor was synthesized by formaldehyde.acetophenone and primary amine.The inhibition efficiency and mechanism of the inhibitor were studied by weight loss method,SEM,eleetrochemicaI test and so on.The results show that corrosion rate reduced with the contents of the inhibitot increasing.When the…
Epoxidation of 1- hexene was carried out using H_2O_2 as the oxidant and B- TS- 1 as the catalyst.The effects of B concent,solvent,H_2O_2 concentration,reaction temperature,catalyst concentration,and reaction time on the epoxidation of 1- hexene were studied.The catalyst showed low catalytic activity and selectivity w…
Using Na2WO4·2H2O and CdCl2·2.5H2O as raw materials,CdWO4nanorods with wolframite structure were synthesized in the presence of the surfactant of SDBS through a hydrothermal method,and characterized by XRD,TEM,EDS and SAED.The PL spectra of the CdWO4nanorods prepared at different pH values of precursor solution were t…
In order to reduce CO2 emissions and expand the scop e of the blast furnace coal,new types of cokes were developed.In this study,Sh enfu non-coking coal and Australian Mine Powder(AMP) were chosen as the raw mat erials.The CIC(Carbon Iron Composite) samples with different content of AMP wer e prepared by crushing,scre…
This trial was conducted to investigate the effects of dietary Cr-Yeast supplementation at different levels on immune function and milk performance in diary cows during postpartum period,which would offer references to the application of chromiumin the milk cow industry.A total of 20 health Chinese Hosltein dairy cows…
Ethyl p-hydroxybenzoate was synthesized with ionic liquid [HSO3-Pmim]HSO4 immobilized on silica gel as catalyst.Effects of reaction temperature,reaction time,molar ratio of alcohol to acid and dosage of immobilized ionic liquid on the product yield were investigated.Results indicated that ionic liquid [HSO3-Pmim]HSO4…
The thermal stability,crystallinity and the microscopy,structural change of surface of brominated polystyrene(BPS) synchronized with antimony trioxide(Sb2O3) flame retarded long-glass-fiber reinforced PA6 composite(FR/LGF/PA6) with different thermal exposure time at 160 ℃ were studied.The influences of surface structu…
Fire resistance of wood samples treated with boron-based wood preservative(D-B-M) were tested by a cone calorimeter.The preservative was a mixture of disodium octoborate tetrahydrate(DOT),boric acid(BA) and magnesium sulfate(MgSO4).Testing results indicated that there was a synergistic effect among the mixed component…
In this paper,the well monodispersed hollow latex particles were synthesized through multi-step seeded emulsion polymerization.And the effect of crosslink monomer dosage in the shell on the morphology and opacity of the hollow latex particles were investigated by the characterization methods of particle size analysis…
Nanocrystalline Si:H films and nanocrystalline Si:H film based p-n junctions were fabricated by rapid thermal annealing(RTA)of amorphous silicon films deposited by hot-wire chemical vapor deposition.Dependence of the structural and optical properties of the nanocrystalline Si:H films on the annealing temperature is st…