Materials Literature
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In recent years,porous silicon is widely used in the field of micro-transducer technology due to its characteristics of good optics,calorifics,electrics and mechanism.More and more attention are paid on various method and theory of P type porous silicon's electrochemistry etching.The effect of using organic solvent in…
In this article,the degradation of chitosan with cellulose was sutdied by determining the concentration and viscosity of reducing sugar in solution.The influence factors of degradation reaction were discussed,such as temperature,pH and reaction time of degadation process.The structure of chitosan before and after degr…
The reduction and detoxification mechanism of sodium selenite by Rhodopseudomonas pal-ustris were studied in this paper.Effect of factors on the reduction and detoxification of sodium selenite based on a single-factor test and orthogonal experiment were investigated.Results showed that selenite removal rate by the red…
The properties of Yunjin No.1 cotton such as its fineness,twist,hairiness,unevenness and once tensile property were tested and analyzed,compared with Upland cotton yarn and Upland cotton/Sea Island cotton blended yarn with the same counts.The result showed that the hairiness index of Yunjin No.1 cotton yarn are fewer,…
By adopting ingot mould pouring,3 800 mm rolling mill and process,82 mm-thick Q345R-Z35 plate for pressure vessel has been successfully developed and manufactured in batch.The qualified ratio of ultrasonic testing on the plate satisfied the requirements of JB/T 4730—2008 for the first degree product.The average yield…
The effects of traditional emulsification and starch emulsification on quality indices such as water-holding capacity,cooking loss rate and texture properties of emulsification-type sausages were comparatively investigated.Meanwhile,sensory evaluation was performed on emulsification-type sausages derived from both emu…
Recent progress on hydrogen storage over amide-hydride system,ammonia borane and its derivatives is reviewed.Hydrogen storage performance,mechanism,thermodynamic,and kinetic properties of each storage system are introduced in detail.We emphasize the significances of compositional change and catalyst decoration during…
The use of stem cells is a heated search in cardiovascular areas.The treatment of myocardial infarction has shown success.Several clinical studies have supported stem cell repair myocardial infarction and improve cardiac function through differentiating into myocardial-like cells and angiogenesis.This study reviews th…
Silk fibroin/nano-SiO2 gel blend membrane is a kind of membrane material with fine air permeability,stability and mechanical properties,which meets the requirements of artificial skins better than other materials.In this study,a series of tests including allergic test,cytotoxicity test,pyrogen test,delayed hypersensit…
A hyperbranched polyphosphate bisphenol-A ester flame retardant(HPPEA) was prepared by using phosphorus oxychloride and bisphenol-A.The structure and thermal stability of the product were characterized by Fourier transform infrared spectrometer(FTIR),nuclear magnetic resonance spectrometer(1H-NMR,31P-NMR) and thermogr…
Due to its antibacterial properties,silver nanoparticles has been widely used in various fields,such as environment,agriculture and medicals,etc.Previous studies had investigated the health effects and action mechanism of silver nanoparticles in vivo and in vitro studies.However,due to the limitation of study design o…
Modified mesoporous V-MCM-41 materials were synthesized by hydrothermal method with cetyltrimethylammonium bromide(CATB) as template and dimethyldecylamine(DMDA) as expanding agent,which were characterized by using BET,XRD,SEM,TEM methods.The pore size expansion effects of V-MCM-41 by direct hydrothermal method and po…
The refining course of primary phase in semi-solid slurries of high Cr cast iron during inclined cooling was studied.The results show that the temperature field and composition field of the molten high Cr cast iron change by inclined cooling,and the shear stress exists in molten alloy and between the molten alloy and…
A flame-retardant adhesive BSA is prepared by blending ammonium polyphosphate(APP) into styrene/acrylic copolymer which is synthesized by pre-emulsified seed emulsion polymerization.The effects of APP concentration,amount of initiator and reaction temperature on emulsion stability,peel strength and flame retardant abi…
The effects of crystallization processes on the microstructure and magnetic properties of nanocomposite magnets were reviewed.The effects of isothermal anneal on the microstructure and magnetic properties in nanocomposite magnets were investigated.It is revealed that the traditional isothermal annealing methods limit…
A simple route to synthesize mesoporous ZnO nanoparticle was proposed using polystyrene microemulsion system composed of cetyltrimethylammonium bromide(CTAB) /styrene(ST)/zinc nitrate/ammonium persulfate(AP).The effect of calcining temperature on the structures characteristic of the synthesized mesoporous ZnO was inve…
The CeO2/CuO catalysts were prepared via microemulsion or impregnation methods and characterized with X-ray diffraction(XRD),temperature-programmed reduction(TPR),surface area analysis(BET)and catalytic performance test for preferential CO oxidation.The results showed that the activity and selectivity were closely rel…
The copper foil samples were prepared in CuSO4-H2SO4 electrolyte system,the texture of copper foil which was electrodeposited under different conditions was studied by X-ray diffraction(XRD).The results show that the texture coefficient(TC) is enhanced by the increase of copper foils thickness,the(111) texture gradual…
The density and mechanical property of ramie fiber and yarn which were treated by alkali and grafted by TDI on the optimal reaction conditions were studied.The molecular structure and crystal structure of ramie fiber were analyzed by IR and XRD.The results showed that,the density of ramie fiber and yarn which were tre…
The effect of mixing procedure on properties of NR/BR/EPDM blend was investigated.The results showed that the flowability of the stock,the distribution of Carbon Black(CB),the mechanical property and flexibility were improved when CB was premixed into EPDM.The reasonable quantity of premixed CB was 25%~50%.To get the…