Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
A film impregnated with salicylic acid coupled with high performance liquid chromatography(HPLC) was developed to determine hydroxyl radicals formed in DBD reactor.Effect of trapping time,specific input energy(SIE),relative humidity(RH),various background gases as well as catalyst on the quantities of OH were investig…
The crosslinked chitosan/attapulgite composite resin(TA-CS/ATP) is prepared by emulsion cross-linking method with tannic acid as a template.The morphology and structure of the resin are characterized by SEM and FT-IR.The performance of resin is evaluated by pore parameters.The effect of the amount of template on the a…
The wearability of bamboo-silk fabric was studied in this paper.The results showed that: not only the bamboo-silk fabric interweaved with original bamboo fiber yarns and silk was very white and luxuriant,but also the bamboo-silk fabric interweaved with bamboo pulp fiber yarns and silk was very white and luxuriant.The…
Objective To explore the effect of CCTA in vitro on cultured tumor cells inhibition and possible mechanism.Methods Human cerical cancer hela cells、 human colon cancer SW480 cells were selected as the research objects,After putting different concentrations of Cynanchum Chinense Total Alkaloid(CCTA) respectively on cell…
Based on the available data in the DCS or MIS, an experimental investigation was conducted to optimize soot-blowing of each convection heating surface for a 1 000 MW ultra-supercritical boiler and a soft-sensor model and soot-blowing system was established according to the principle of whole and local energy and mass…
Several kind of aramids,their synthesis and processing methods were introduced in this paper, and compared these methods.The development of aramids was also analyzed in our country and overseas.Then the view on progress of aramid was put forward.
An ion-pair compound,[4-BrBz-1-APy]2[Cu(mnt)2](1)(4-BrBz-1-APy=4-Br-(benzylideneamino)pyridinium,mnt2-= maleonitriledithiolate),has been synthesized and characterized.The X-ray single crystal studies show that 1 is crystallized in the monoclinic space group P21/n,and its asymmetric unit is composed of one anion togeth…
In this paper,a new dielectric material—the film of Parylene F was prepared through the method of chemical vapor deposition(CVD).The surface morphology of film was characterized by SEM and AFM.The composition and performance of the film was tested by IR,XPS and DSC.The results showed that the film of Parylene F was a…
Poly-urea elastomer is new universal painting material with the properties of plastic,rubber,paint and fiber glass.Painting used Poly-urea is a painting technique with high reactivity and without pollution,which was developed at abroad within recent decade.Compared with traditional painting technique,this technique ha…
Taking 1-decene as raw material,boron trifluoride as major catalyst through oligomerization,the poly-alpha-olefin(PAO)was prepared.In order to obtain higher content trimer and tetramer,the influences of different reaction temperature,reaction time,cocatalyst on the distribution of PAO were investigated.The results sho…
Starting from 2,7-dibromofluorene,two aryl substituents were introduced to the 9-position of fluorene to replace the commonly used alkyl groups to increase the stability of fluorene.New polymers with excellent thermal and luminescent stability were synthesized using newly designed monomers through the AB_2+AB approach…
Both discretization form of population balance equation and crystallization kinetic models of strontium sulfate were used for modelling the crystal size distribution of strontium sulfate prepared by reactive crystallization method in this work.The results indicated that the calculated results were in good agreement wi…
The process of absorbing moisture and sintering of the ceramic welding backups was analyzed,the experimental methods of water absorption and moisture absorption of the ceramic welding backups was introduced.Compared with the experiments of water absorption and moisture absorption between the ceramics with different de…
The friction and wear behaviors of isotropic pyrolytic carbon(IPyC) at room temperature,without lubrication,were examined with 40Cr steel as couple by the ring-block sliding wear test under different loads.The results show that the load can influence the friction property of IPyC.Under different loads,the friction coe…
By casting,the edible films based on carrot puree,chitosan,corn starch and gelatin were developed.Glycerol was added as plasticizer.The effects of chitosan,corn starch,gelatin and glycerol on the film′s properties were investigated.Results show that chitosan,corn starch,and gelatin contents do not significantly influe…
The technology of single point diamond turning(SPDT) is capable of achieving sample surface roughness of less than 10 nm and shape accuracy of less than 100 nm,which are crucial parameters for ultra precision machining. In research of equation of state(EOS) of materials,a target must have a surface roughness of less t…
The silver nitrate was selected as the silver source,the polyethylene pyrrolidone as stabilizer,carboxymethyl cellulose sodium(CMC) and the glucose as reducing agent separately,the nano-silver was prepared under two different systems using the liquid phase chemistry reducing method.The nano-silver particles were measu…
The reduction of sulphur during the VIM of Ni-base alloy was studied by using prefabricating MgO and CaO crucibles.The former was added with La rare earth element,and has no effective desul-phurization when the sulphur content was less than 0.0030(wt%) in raw materials.The latter was added with Al,it can make the sulp…
Two Ca-Mg-Al hydrotalcite catalysts for transesterification of soybean oil with methanol to biodiesel were prepared by co-precipitation method using different precursors, and their catalytic properties were investigated. The results showed that Ca-Mg-Al hydrotalcite using calcium oxalate as calcium source exhibited hi…
Attapulgite(AT) reinforced natural rubber(NR) nanocomposites were prepared by mechanical compounding.The microstructures,mechanical properties and curing characteristics of the nanocomposites were investigated.The reinforcement mechanism of AT in NR was clarified.The results show that the modified AT exhibited outstan…