Materials Literature
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Graphite oxide was modified by KH-550,the modified graphite oxide was reduced to form functionalized graphene(FG) dispersing consistently in the acetone/water(mass ratio is 9∶1) solution by ultrasonic treatment before drying.The FG dispersion was intensively mixed for a certain time by ultrasonic treatment to disperse…
Investigated the seamless warp-knitted tops from the aspects of production equipment,software-aided design,warp costumes characteristics,and the constitution of seamless knitting machine and the basic structure of fabrics were analyzed.The basic forming principle of three special organizations of seamless warp-knitted…
A polyurethane polyol dispersions of two-package waterborne polyurethane have been successfully synthesized with diethanolamine(DEA) as the blocking agent for introducing hydroxy-terminated on to the end-NCO polyurethane prepolymers,which were prepared beforehand with isophorone diisocyanate(IPDI),polyether binary alc…
Crystal morphology of crystals depends on unitsand their movement.Adding additives into the system,the unitappears diversity.But no every kind of unitscan become crystal nucleus of the system,Only favorable growth unit can stably exist in solution.As the coordination system of the compound growth units is different fr…
The center position force in strip was deduced when the taper roller was used during continuous annealing process,and the mechanisms of strip center position running and strip buckling were introduced and summarized.On this basis,the influences of roller type,roller shape parameter,roller surface texture and roller th…
Surface morphology of the ceramic coatings can be modulated by gas evolution on anodes during micro arc oxidation(MAO) processes.A novel technique to enhance gas evolution using Na2CO3-containing solution was proposed.MAO ceramic coatings were fabricated on AZ31 magnesium alloy using Na2CO3 as a special additive in Na…
This paper analyzed the status and causes of livestock and poultry breeding pollution according to the first national census data of pollution sources in qidong,and also proposed several countermeasures.
The structure to be measured is easy to destroy if a designed MEMS high-g acceleration sensor has less-overload ability and it is used in harsh impact environment.Through analyzing the effect of a sensor structure on its anti-overload capacity and collecting its structural damage statistics in high impact testing,a ne…
To introduce technology research and development present situation of domestic brass electroplating production line,the process flow and process parameters of production line are given.The production lines are from 260 to 280 meters long with 10~15 kt/a production capability,which can disposal 42~56 pieces diameter 0.…
Simulated atmosphere containing 150 mg/L SO2 was established in laboratory to investigate the initial atmospheric corrosion beha-vior of Cu deposited with 3.75 μg/cm2 NaCl based on electrochemical impedance spectroscopy(EIS).The real-time solution resistance(Rs) and polarization resistance(Rp) of the Cu electrode were…
The composite material was prepared by collagen mixed with polythene,EAA was used as compatibilizer,through which to would improve the compatibility between collagen and polythene.The mechanism of compatibility and preparation methods were was studied.The composite material was identified by TGA,DSC and SANS tension t…
Objective To introduce the progress of nonspherical nanoparticles and review the pharmacokinetics and preparation methods for nonspherical nanoparticles. Methods On the basis of published literatures,the shape effect on the pharmacokinetics of nanoparticles and fabrication of nonspherical nanoparticles were classified…
Phaneroplasmodium of Physarum compressum was induced to form fruiting body and ultrastructure during sporangium development was observed. All plasmodia participate to form spores and capillitium. The density of protoplasm and the number of lipid droplets increase during plasmodium accumulation. During spore developmen…
In this paper,a water soluble phenolic resin was employed as a surface sizing agent to improve the strength of case board paper.The resin could increase the ring-crush strength of case board paper to an extent of 167%higher, but it decreased the bursting strength.Oxidized corn starch was found to have synergistic effe…
The effects of technological parameters on microstructures and properties of low cost hot rolled dual-phase steel was researched by design different finish rolling temperature,mid cooling temperature between laminar cooling and UFC (ultra fast cooling) and stable UFC rate on the same gauge strips with the same chemist…
A new intermetallic compound,Tb3Co4Sn13,has been synthesized by solid-state reaction of the corresponding pure elements in a welded tantalum tube at high temperature.Its crystal structure was established by single-crystal X-ray diffraction.Tb3Co4Sn13 crystallizes in cubic,space group Pm3n(No.223) with a = 9.5072(2) ,…
Safe,efficient and economical hydrogen storage is the key technique for the large-scale application of hydrogen energy.With respect to high-pressure and liquefaction hydrogen storage,solid-state hydrogen storage,which can store hydrogen in materials by forming solid solution and/or hydrides,is regarded as the most pro…
The green emitting phosphor,Gd2Ba3B3O12∶Tb3+ was synthesized with the method of high-temperature solid-state reaction.The phase structure and photoluminescence(PL) properties of the samples were characterized by The X-ray diffraction(XRD),vacuum ultraviolet spectrum and ultraviolet spectrum(VUV-UV).The results indicat…
Sodium methyl 2-sulfolaurate(C12-MES) was synthesized by esterification,sulfonation and neutralization steps using lauric acid as raw material,methanol as esterifying agent,and chlorosulfonic acid as sulfonating agent.Target products with light colour having more than 80% C12-MES were obtained with a molar ratio of me…
The experimental study of the silicone rubber and EPDM insulator eroded by highly concentrated particles were carried out and a series of dynamic recession images of insulation surface were obtained successfully based on real-time X-ray radiography technique(RTR).The experimental results show that(1)The transient abla…