Materials Literature
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Using polyester and viscose blended yarn to design new wool-like fabric.The warp and weft yarn are corn-apun yarn.The fabric weave is plain and the weaving process is warping,spinning,twisting,warping,reeding and weaving.The dyeing and finishing process is pre-shrinking,heat-setting,alkali finished,water washed,dyeing…
The Talbot self-imaging of high density gratings with different period at half Talbot distance for different polarization is analyzed with finite-difference time-domain(FDTD) method.The numerical results indicate that the Talbot self-imaging of high density gratings for different polarization shows the biggest differe…
In this study,pepsin,papainase and trypsin was tentatively used to extract collagen from silver carp fish scale,and the enzyme showing best performance was screened to optimize preparation procedure of collagen by orthogonal experimental design. The results showed pepsin presented the highest yield of collagen from si…
Ti-containing hexagonal mesoporous silica(Ti-HMS) is synthesized with dodecylamine as template. The structure of Ti-HMS is characterized by XRD,ESEM,FT-IR and UV-Vis.Photocatalytic deoxidation of Cr(Ⅵ) over suspended solution of Ti-HMS is studied with potassium dichromate solution as the waste water,UV lamp as light s…
Sonochemical degradation of methyl orange,a kind of azo dye,was carried out.The experimental results show that the color shade of analogous wastewater and the pH value continuously drop with the extension of ultrasonic time,while the decolorization rate of CODCr rises.The experiment about the presence and absence of r…
Nanostructured copper indium sulfide(CuInS_2) material,a critical semiconductor with a direct band gap of 1.5eV alongside its large absorption coefficient(α～10~5cm~(-1)),has a good prospect of application in photovoltaic solar cells.As one of the widely used liquid-phase technique to synthesize nanopowders,the hydroth…
The wear of water turbine guide shaft is a difficult problem often encountered at hydropower station.This article described several advantages and disadvantages of repairing methods of surface wear:grinding,electroplating,inserting sets,thermal spraying,etc.The repair process of hard chrome plating was applied to repa…
Poly(butylene succinate) (PBS) was successfully synthesized by the polycondensation reaction from 1,4-butanediol and succinic acid in a liquid-solid reaction system catalyzed by Novozyme435 which is a kind of immobilized lipase.The influences of reaction conditions were investigated.The weight-average molecular weight…
Z-type hexaferrite(Ba1-xSrx)3Co2Fe24O41 materials were prepared by solid-state method.The effects of Sr substitution on the microstructure and electromagnetic properties of Z-type hexaferrites were investigated.The results showed that when the amount of Sr substitution(x) is less than 0.5,the average grain size and th…
Based on comparative and analyzing of two kinds of quenchants oils for carbonitriding quenching of the gears,the influence of the cooling characteristics of the HSFD martempering quenching oils on the properties and dimensions of the gears is discussed.The results show that the martempering quenching oils can decrease…
The effect of injection process parameters on the quality of chemical foaming of high density polyethylene (HDPE) was studied through designing of experiments (DOE) matrices. These samples were then subjected to be observed and statistic by scanning electron microscope (SEM) and Image-Pro software. The effect of injec…
Based on the four-element model including two Maxwell models,the equation of the stress relaxation process is developed using the principle of Boltgation superposition.Stress relaxation experiments of ring spun,compact and Murata Vortex Spun(MVS) yarns made of bamboo pulp are measued.The regressive equation of the str…
Nucleophilic addition is a characteristic reaction of a buckminsterfullerene.However,the addition of nucleophiles to C60,in most cases leads to a myriad of different polyadducts which are difficult to separate into isomerically pure compounds.The addition of NaCN to C60 revealed that the controllable mono-adduction of…
By the use of polyester filament and cotton roving,the first embedding composite spinning yarns of different twist factor were spun in the condition of other constant parameters.Yarn elongation and strength were tested and analyzed.The results showed that the optimum twist factor of the first embedding cotton-polyeste…
A novel cathode material of lithium battery was prepared by the decomposition of thiophene using hot-filament chemical vapor deposition(HFCVD).The structure and morphology of the material were characterized by SEM,IR,RAMAN and EDAX.Results show that asprepared powder was granular materials film and mainly composed of…
Co-B catalysts supported on ZrO2(prepared by alcogel nitrogen thermo-treatment method),carbon nanotubes(CNTs),and mesoporous SBA-15 as supports were prepared by chemical reduction method and characterized by X-ray diffraction(XRD),nitrogen physisorption,transmission electron microscopy(TEM),inductively coupled plasma-…
Objective:Based on fibers electrospinning technology,we prepared periodontal tissue regeneration membrane with microspheres from which bone morphogenetic protein growth factor (rhBMP2) are sustaining released.Methods:By mixing the calcium alginate microspheres carrierd of rhBMP-2 in with Carboxymethyl chitosan and CCS…
In order to study the characteristics of electrical treeing aging at AC voltage in LDPE,with the continuous applied voltage to observe the propagation of electrical treeing,we adopted needle plane specimens to observe the treeing experiments. Meanwhile,the barriers of different polymeric films were introduced to the L…
Hot deformation behavior of 9%Cr heat resistant steel with equiaxed forging microstructure was investigated at 1000-1300℃,strain rates ranged in 0.005-5s-1 and maximum deformation to 50% by means of hot compression tests at isothermal and constant strain rate.The effects of thermal-mechanical deformation parameters on…
Substrate glasses have now become the key materials for preparing TFT-LCD(Thin film transistor liquid crystal display).The designing principle and structure of furnace and its forehearth as well as the principle of refining and homogenizing processes are analyzed in accordance with the requirements of TFT-LCD substrat…