Materials Literature
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(1-x)Ba0.998La0.002TiO3-xBi4Ti3O12(0.001≤x≤0.03) ceramics were prepared by solid-state reaction technology via different prepared processing(one-step: (1-x)Ba0.998La0.002TiO3-xBi4Ti3O12 were prepared from the powder of Bi4Ti3O12(BIT),La2O3 and BaTiO3; two-steps: first,Ba0.998La0.002TiO3 was made from the powder of La2…
2,2-bis[4-(4-nitro-2-trifluoromethylphenoxy)phenyl]sulfone(I) was synthesized through nucleophilic substitution reaction of 2-chloro-5-nitrobenzotrifluoride and 2,2-sulfonyl diphenol in the presence of potassium carbonate.Then,a diamine monomer,2,2-bis[4-(4-amino-2-trifluoromethyl-phenoxy)phenyl]sulfone(II) was obtain…
The recycling technology of PVC mother liquid by the way of biochemistry and ozone method was discussed. Process debugging and running were summarized.
In order to get high quality coatings,various spraying parameters were used to prepare WC-Co coating with plasma spraying on specimens which were made of the same materials(TC4),then optimum spraying parameters were ascertained according to the oxidation,density,porosity and quality of the coatings microstructure.With…
Magnesium matrix composite reinforced with CNTs and SiCp were prepared by means of stir-casting process.The mechanical properties,fractographs and microstructure of the composite were tested,observed,and characterized with universal material tester,optical microscope and SEM,respectively.The results showed that the ad…
Cyclohexene polysulfide was synthesized from sulfur and cyclohexene using ammonia as catalyst.The molecular structure and components of the products were characterized by elementary analysis,infrared spectroscopy and GC/MS analysis.The corrosion-inhibiting performance of cyclohexene polysulfide was investigated by dyn…
The lipophilicity and hydrophilicity of Polypropylene(PP) modified with the additives(CPB,CTAB,PVDF,Silica wax and alkyl siloxane) was studied,and experiments have been conduct to investigate the properties of coalescent oil removing of these modified PP in the process of oil water separation.The experimental results…
Objective To modify the titanium metal by chemical treatment(NaOH or H2O2)with subsequent hot water aging to improve of the amount of-OH groups.Methods Pure titanium was subjected to three different treatments: alkali-heat treatment,alkali or H2O2 treatment and sequent hot water treatment.The surfaces were characteriz…
A MUF(melamine/urea formaldehyde resin) with water resistance was prepared by one-step method,and the influences of n(F)∶n(U1)[namely molar ratio of F to U1] in the polycondensation stage,curing agent types and other factors were discussed on thermal performance and mechanics performance of curing product.The results…
DEHP was hydrolyzed by CaO and CaCl2 at different temperature with different PH value for different time,so as to determine the optimal hydrolysis condition of DEHP,i.e.,the optimal concentration of NaOH was 0.1 mol/L,the optimal hydrolysis temperature was 75 ℃ and the optimal hydrolysis time was 20min.
Carbonate hydroxylapatite(CHAP) synthesized from abandoned eggshell and urea was characterized by Fourier transform infrared spectra,scanning electron microscope and X-ray diffractometer.The effects of pH value,adsorption period and aniline initial concentration on the adsorption performance of aniline from aqueous so…
The structural features and property of the starch size grafted DF858 was introduced,and the practical situation on using DF858 instead of PVA to starch up the high-grade purified cotton fabric and a part of polyester-cotton blended fabric was analyzed.It showed that if the PVA is fully replaced by DF858,it can improv…
Nanocrystalline titania (TiO 2) thin film with anatase structure was deposited on a float glass with a thickness of 5 mm by spray technology and then heat treated at different temperatures.The morphology,structure and micromechanical properties of TiO2 film were investigated by atomic force microscope,X-ray diffractom…
The basic properties and morphologies of richel fiber,viloft fiber and Shengma fiber were introduced.And different identification methods were used to identify the fibers according to their characteristics,and the reasonable identification method was found out by the comparative analysis.
As a kind of non-siliceous mesoporous material,mesoporous metal oxides have potential application in industrial catalysis,photoelectronic,solar cell and so on.In this article,the synthesis method,category,the main difficulties existing in synthesis and the application area of mesoporous metal oxides are reviewed.It′s…
Effects of chitosan degraded-mixture on the effect on the activity of Phenylalnine ammonialyase(PAL),Peroxidase(POD),Polypheneol oxidase(PPO) and Superoxide dismutase(SOD) of tomato seedling are studied.The results showed that the peak of defensive enzymes activities emerges earlier,which is the cause of strengthening…
The ligand N,N′,N″-tri(2-hydroxy-1-naphthaldehyde)-aminotriethylamine was synthesized previously and was reacted with an ethanol solution of rare earth,especially La3+,Sm3+,Y3+,Tb3+,Ce3+ or Eu3+,in a medium of ethanol and methylene chloride to give the corresponding rare earth complexes.Their molecular structures were…
A compound of[Ba(H_2O)_6][Cr(nta)(OH)]_2 is synthesised in the solusion and is characterized by IR spectra and X-ray diffraction.The results show that the crystallizes is the triclinic,space group P-1 with unit cell parameters:a= 11.002(5),b=11.078(5).c=11.632(5),V=1172.0(8)~3,Z = 4.
The effect induced by hydrogen on the microstructure of Ti-6Al-4V alloy had been investigated by optical microscopy and superplastic tensile tests were performed at 800℃~860℃ with initial strain rate 10-3s-1.Experimental results indicate that the volume fraction of β phase in hydrogenated Ti-6Al-4V increases with the…
Diamond-like carbon(DLC) films with good abrasion resistance and high transmittance were deposited on polycarbonate(PC) by plasma-enhanced chemical vapor deposition(PECVD).The effects of technological parameters on properties were investigated.The results show that the abrasion resistance can be improved greatly after…