Materials Literature
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The progress in preparation of anionic,cationic and non-ionic self-emulsifying waterborne epoxy resins and their application in the anti-corrosion coatings,floor coatings,food container wall coatings,waterproofing materials and pouring materials were reviewed.The future developments of waterborne epoxy coatings were p…
Objective To reform enzymatic digestion and create a simple and effective primary culture methods for rat vascular smooth muscle cells(VSMC).Methods 0.1% collagenase Ⅱ was used to digest and isolate the thoracic aorta smooth muscle cells of rat and then cultured.The feature of vascular smooth muscle cells was observed…
The hydroxyl-terminated modified poly(lactic acid-co-e-caprolactone) copolymers(PLCA) were synthesized via directly melt polycondensation with lactic acid(D,L-LA) and e-caprolactone(e-CL) as raw material using linear heating method.The best synthesis conditions were pressure 0.098 MPa,catalyst dosage 0.8%(mass fractio…
The optical microscopy,microhardness test,impact test,SEM and EDS are employed in investigating into the black stripy phase inside welding seam.Results show that the black stripy phase is made by granular carbide segregation,stripy carbide segregation and micro cracks.Such phase has an influence on the impact toughnes…
The new developments of electrospinning nanofibers technologies and products,industrialized varieties and under researching developping new varieties and new applications in Japan,Europe and USA,were aumma-rized.The RD directies and trend in future were pointed out.
FeCo/Al2O3 nanocomposite films were prepared by the sol-gel spin-coating method and the H2 reduction technique.The effects of reduction temperature on the structure,thickness,surface morphology and magnetic properties of the films were investigated by X-ray diffractometer,scanning electron microscope,atomic force micr…
In this paper,in order to obtain the ferrite magnetic fluids of higher saturation magnetic intensity with simple technology,nanometer magnerite(Fe3O4) particles ware prepared by chemical co-precipitation.And to a certain proportion of Dysprosium Neodymium ferrite magnetic fluids on the modification,we selected starch…
The titanium opaque porcelain was synthesized through normal melting-derived route using SnO2 glass-ceramic system.The porcelain was characterized by thermal expansion,X-ray diffraction and cytotoxicity tests.The results of XRD showed that the main crystal phase of the opaque porcelain was SnO2.Its' average coefficien…
Indium-tin-oxide(ITO) films were prepared by direct current(DC) magnetron sputtering.After deposition,the films were annealed in air for 1.0 h at different temperatures(100-400 ℃).The microstructure,chemical composition and photoelectric properties of the films were analyzed by X-ray Diffraction(XRD),Transmission Elec…
This paper introduces use of high frequency(HF) and ultrahigh frequency(UHF) in partial discharge test on HV cable terminals.UHF test system is used for preliminary test,then various signal detection modes are adopted to sample measured signals from cable terminals for in-depth measurement of HF.The measurement obtain…
The effects of two kinds of water-soluble silver salt(silver nitrate or silver acetate) on heating behaviors,bulk resistivity of ECAs and contact resistance of ECAs on tin surfaces under aging condition were investigated.The DSC results show the addition of silver salt does not influence curing behaviors of ECAs.The b…
Zinc doped Li(Ni1/3Co1/3Mn1/3)O2 cathode materials for lithium-ion batteries are synthesized by co-precipitation method.The first delithiation of the samples are studied by electrochemical impedance spectroscopy(EIS).The fitting results on EIS data indicate that the cathode delithiation is at 3.7~4.4V voltage range;th…
Using the high micro-Raman spectroscopy,the micro-structures of nonlinear optical crystal LiB_3O_5 and its high temperature solution were studied.The high temperature Raman spectra of LiB_3O_5 crystals,Raman spectra of lithium borate glasses Li_2O·4B_2O_3 at room temperature and its melt at high temperature were obtai…
Prepared B4C/AZ61 magnesium matrix composites by mechanical mixing method and analyzed how the B4C particles effect the creep and wear properties of AZ61 by comparing with the creep and wear test results of AZ61 matrix alloy and B4C/AZ61 magnesium matrix composites.The results show that: for the creep properties,the m…
The carbon footprint calculation processing is studied based on a real case of cotton wet process,in which all the inputs and outputs data of the whole dyeing and finishing process of black cotton-spandex weft elastic satin drill is collected.According to the pad-dyeing practice,black cotton-spandex weft elastic satin…
Ni nanowire arrays were synthesized using two simplified template-based electrochemical methods,in which a home-made porous anodic aluminum oxide(AAO) membrane and a commercial Cu-foil-AAO template were used as the template.The length of the prepared Ni nanowires is in micrometer scale while their diameters are 50nm a…
To study the influence of DMQA concentration on the performance of OLEDs,the devices of ITO/PEDOT: PSS/TPD/Alq3: DMQA/LiF/Al with the doping ratio ranging from 0.28 wt% to 4.5 wt% were investigated.When increasing the DMQA concentration,three phenomena were observed: the current characteristics decreased slightly,whic…
A series of Cu-Mn nanocomposite oxides is prepared by hydrothermal synthesis.The products are characterized by XRD,SEM and H2-TPR.The catalytic performance of the selective catalytic oxidation of benzyl alcohol is investigated.The results show that when the molar ratio of Cu and Mn is greater than 1,the products are c…
Objective This study was designed to investigate the anti-obesity mechanism of recombinant human ciliary neurotrophic factor(rhCNTF) in the Neonatally Monosodium Glutamate-Treated Obesity model rats and to provide the experiment data for the development of rhCNTF as a new drug.Methods MSG rat model was established in…
Through different water deficit treatments,the cumulative function of water sensitive index for cotton was established in this paper.The higher water sensitive index was in the period of 90-110 day after seeding and can reach 0.025.The results demonstrated that the cumulative function of sensitive index represented by…