Materials Literature
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Bio-based phenol-formaldehyde resol resins were synthesized using lignin as the replacement of petroleum-based phenol.Interpenetrating polymer networks(IPNs) based on 1,4-polybutadiene rubber(BR) and lignin-phenol-formaldehyde(LPF) were prepared using simultaneous polymerization method(SINs).The morphology and compati…
The annealing treatment was carried out for the two kinds of BET(specific surface area) indium tin oxide(ITO) nano-powders,and the influence of annealing temperatures on the microstructure and crystal structure was studied and compared for the two kinds of powders,in addition,the targets prepared by the two powders we…
A novel quadridentate compound,2,5-bis(4-((2-(pyridin-2-yl)-1H-benzoimidazol-1-yl)methyl)phenyl)-1,3,4-oxadiazole(L),is synthesized and used as the second ligand to obtain a novel dinuclear Eu3+ complex of [Eu(TTA)3]2L(where TTA = 4,4,4-trifluoro-1-(thiophen-2-yl)butane-1,3-dione),which is characterized by IR and UV-V…
In this paper,M45 and M60 mullite were synthesized.The M45 was synthesised directly with coal-series kaolin,M60 was synthsised by coal-series kaolin and industrial alumina mixtures,the samples were characterized by DSC/TGA,XRD and SEM.The results showed that the effect sintering temperature was 1 500℃,and the holding…
Using La2O3 and Co(NO3)2·6H2O as raw material,lanthanum-cobalt mixed oxides were prepared by supercritical fluid drying technology and sol-gel method.The prepared materials were characterized by TG-DTA、XRD、FT-IR and TEM.The key aim was to examine the effect of supercritical fluid drying technology on the prepared mate…
The wettability characteristic of riblet surface is studied through testing the riblet surface' contact angle.Riblet structure is manufactured on aluminum and steel plate using quasi-LIGA molding technology.This technology uses the ultraviolet radiation as the exposal source,then through development,surface activation…
Several antioxidants used in plastic were illustrated,including natural antioxidants,reactive antioxidant and non-phenolic antioxidants.We should pay more attention to the applied research of antioxidants.
MCM-49 modified with 25%teflon(MCM-49-25%teflon) was prepared by impregnation method and was used for alkylation of benzene with propylene.The results showed that the surface-appropriate oleophobic properties of the catalysts were effective for preventing polymerization of propylene molecules,removing cumene molecules…
The requirements of all industries for machine tools in China were reviewed.The development situation of domestic machine tool castings were presented,as well as the problems and gaps existed in production.The key technologies to produce high carbon equivalent high strength machine tool castings and the ageing treatme…
A formulation of agueous anti-rust paint for rusty surface was designed through orthogonal experiment.Emulsion,aluminum tripolyphosphate,ferric oxide and buffer solution were selected as factors.Effects of adhesive force,rigidity and covering power upon coating properties were discussed by range analysis,then the opti…
The experimental apparatus and process of refining ZLSi7Cu2Mg alloy with flux was introduced.The refining experiments of ZLSi7Cu2Mg alloy with five inorganic salts mixture were done.The relationship between electrode melting rate and current was found.From two aspects of refining or not,the tensile strength,extension…
OBJECTIVE To investigate the possibility of using doxorubicin-loaded liposomes modified with Angiopep-2 as the targeted carriers to achieve increased accumulation in glioma.METHODS The liposome was prepared by film hydration,and the maleimides of DSPE-PEG-MAL on the liposome surface conjugated with the Angiopep-2 cova…
A new type of composite lubricant EBS/BE/XH-202C was preparated,and its influences on the extrusion rate,surface smoothness and processing properties of PVC plastics were investigated.The results showed that: ① the optimum formula of the composite lubricant was m(EBS)∶m(BE)∶m(XH-202C)=80∶15∶5;② the using of this compo…
The problems existing in the working process of the mould foot-roller and bending zone roller in No.1 Slab CC of Tang Steel are elaborated.Some investigation and measures are adopted,such as optimization of technical parameters,improvement of the arc accuracy,optimization of roller structure,perfection of roller lubri…
The process of radiation polymerization is easy to control,the product of radiation modification is pure relatively,radiation polymerization and radiation modification have become an important aspect of synthetic polymer.The mechanism,their synthesis and their application of radiation polymerization and radiation modi…
Three new 5-nitraminotetrazole high-nitrogen energetic salts,(NH2NH2)+(NATZ)-·0.5H2O,(CHZ)+(NATZ)-and(en)+(NATZ)-,were synthesized and characterized by elemental analysis,infrared spectra,DSC,TG-DTG and single crystal X-ray diffraction analysis.The single crystal of(CHZ)+(NATZ)-was cultured by slow evaporation method.…
Blends of poly(lactide acid)(PLA),glutinous rice flour,and poly(ethylene glycol)(PEG) were prepared and studied.Glutinous rice flour increased the water absorption of PLA,but reduced its mechanical properties.The impact strength of the composites first increased then decreased as the amount of PEG increased,and showed…
The influence of rarefaction wave on the experimental section in blast shock tube with different isolator lengths was simulated.To simulate the incident wave at the entrance of experimental section exactly and efficiently,a new method which couples 1D and 3D computational programs was adopted,and small scale explosion…
SrRuO3(SRO)/BiFe0.95Mn0.05O3(BFMO)/SRO heterostructure capacitors were fabricated on Si substrates using Ni-Al as the barrier layer between Si and SRO.X-ray diffraction(XRD) reveals that the Ni-Al barrier is amorphous,while well-crytallinized BFMO film is polycrystalline.A good saturated hysteresis loop coude be obtai…
The effect of aluminum,α-Al2O3 powders additive on the properties of vitrified bond including bending strength,mineral composition and stomatal distribution was studied.The results showed that the highest bending strength is 29.97 MPa when the addition of aluminum powders are 4wt% sintering at 620 ℃,which is increased…