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。
The preparation and technical performance of compisite pouder for titania slag is discussed,and the apply of compisite pouder for titania slag in cement and concrete is experimental studied.The results show that:compisite pouder for titania slag can be used in cement as activity mixed materials and in concrete as acti…
Organic modification of clay is the key process in preparation of polymer-clay nanocomposites (PCN). This paper reviewed the recent research progress and development in this field. Firstly,we presented the effect of different ammonium salts and multi-functional initiators,as well as functional intercalating agents as…
Acidithiobacillus thiooxidans QH-1 was isolated and purified from sludge which was collected from the Qinghe River in Beijing.A preliminary study of the strain's tolerance to several heavy metal ions was made.QH-1 was a Gram-negative,short rod,facultative aerobe.The strain could oxidize reduced sulfur compounds to obt…
In this article are tested the temperature - regulating indexes of Outlast acrylic fiber with fiber's morphology and mechanical performances and stretch of its blended yarn with cotton after tested and not tested at different temperature observed and studied.The result shows that Outlast acrylic fibers is of temperatu…
The process of zinc electrodeposition cathode reaction from zinc chloride-1-ethyl-3-methylimidazolium chloride molten salt containing glycol is investigated,the mechanism of zinc nucleation is analyzed by i ～ t curve,and the effects of glycol on the zinc coating are discussed.The results indicate that the onset reduct…
Hydroxyapatite(HAP) powder was synthesized using one-step-coprecipitation method.Silver nitrate was added to the reaction solution.Without the filtration and dry processes of the wet-synthesized powder,silver was directly doped to the as-synthesized HAP crystal in the original reaction solution by heating the HAP slur…
The effects of temperature on micro-hardness,depositing velocity,corrosion resistance,microstructure and morphology of the electroless plated Ni-P coatings on AZ31 magnesium were analyzed.The results revealed that the depositing temperature was an important parameter which influenced the coating performance greatly.Th…
To obtain cathode electrocatalysts for the oxygen reduction,cobalt tetramethoxyphenylporphyrins(CoTMPP) was adsorbed on MnO_x-loaded black pearls carbon(MnO_x/BP),which was pretreated with 6 mol/L HNO_3 or 30 wt % H_2O_2,respectively. The electrocatalytical property of MnO_x-CoTMPP/BP for oxygen reduction reaction(ORR…
PMMA/MMT Nanometer compound materials were prepared by emulsion polymerization.The reaction process dynamics and reaction mechanism of PMMA/MMT nanometer compound materials were researched at 73,78,86 and 88 ℃,respectively.The results showed that there had speeding time,the constant speed time and speeding down time i…
An experimental study was carried out on the startup and lean combustion characteristics of a new type porous media combustor with external Swiss-roll (SRPC). The temperature profiles and pollutant emission were measured in the startup process of preheating by ignition, and at various working parameters including fuel…
Cold Area Projects,how to take an effective program of concrete construction in winter to ensure project quality.We must do all the preparations before construction,including mechanical equipment,materials,training of personnel selection and management.Winter Construction of rational and effective before they can sche…
Dodecylbiguanidine salt(DODH)was synthesized by nucleophilic addition reaction using dicyanodiamde and aliphatic amine as raw materials.The compound was characterized by FT-IR,and the corrosion inhibition effect of DODH on copper was investigated by means of static weight loss and potentiodynamic polarization in 5% HC…
Analysis a difference of Cr absorbed by an common Cr tanning process,the importance of Cr tannage in existence is illuminated.It is reviewed that the advancement of science and technology has got in Cr tannage since more a century.There are some unfathomed mechanisms in tanning process up to now.A discussion which how…
In order to control the cooling velocity of forgings in polymer quenchant at different cooling stage,a time-controlled quenching method was used.Adopting UCON E polymer quenchant and appropriate cooling parameters,the problem—not hard in oil and crack in water after quenching is solved for middle sized forgings made o…
Using the n-butyllithium as initiator,self-made cyclic ether modifier(modifier T),cyclohexane and hexane mixed solvent,the high-vinyl solution-polymerized styrene-butadiene rubber(SSBR) was prepared by anonic solution copolymerization,and its properties were investigated.The results showed that,modifier T gave good co…
A kind of aliphatic carboxyl acid resin(PS—COOH) was prepared with crosslinked polystyrene and succinic anhydride by Friedel-Crafts acetylation functional reaction and the bonded cellulose chiral stationary phase was obtained by the reaction of the chlorided carboxylic acid resin(PS—COCl) and the cellulose phenylcarba…
The business activities of the foreign epoxy enterprises,the development of the novel epoxy resins,epoxy curing agents and modifiers and the technical progress in epoxy adhesive,coating,UV curing procuct and composite from 2008 to 2009 were reviewed.
Unsaturated polyester resin samples with 0%,35%,45%,55%(WT)magnesium hydroxide respectively were synthesized by 1,2-propanediol,phthalic anhydride,maleic anhydride and styrene.And their flame behavior was investigated by dual cone calorimeter.The result indicated that the ignition time of samples containing magnesium…
A series of effective measures in the processes of cone winding,sizing and air-jet weaving in producing Lyocell LF/Pearl cotton yarn are introduced.Optomizing size formula and sizing process,property selecting main air jet pressure and timming as well as use of rubber temple instead of metal temple are the keys in int…
Three Schiff base oxovanadium complexes have been synthesized and characterized with element analyses,IR and 51V NMR spectrum.They have been studied that the particle size of drug-loaded liposome and the apparent morphology.IR spectrum and inhibition of liver tumor cells of the complex and the drug-loaded liposomes we…