Materials Literature
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Computational fluid dynamics(CFD) was used to simulate electrospinning jets,POLYFLOW was chosen to simulate steady jet movement in 2D space,FLUENT was chosen to simulate insteady jet movement in 3D space,and GAMBIT was used to build geometric model and plot grid.The simulation results indicated that when solution volu…
A transparent solid adhesive rod was prepared when polyvinyl formal(PVF) was used as matrix resin of adhesives,stearic acid was used as excipient,glycerin was used as humectant,and the modifier was introduced into the systems.The influences of contents of main compositions(especially K+) in formula on performances of…
Thin film transistors based on In-Zn-Ti-O oxide channel layer were fabricated at room temperature.The atomic proportion of In,Zn and Ti in channel layer is 49∶49∶2.The device with field effect mobility of 9.8 m2/V·s,on-off ratio higher than 105 and subthres-hold swing of 0.61/dec was obtained.While compared with devic…
Taking La(NO3)3.nH2O and(NH4)2Mo4O13.2H2O as raw materials,using two methods: sol-gel technology and evaporation crystallization,molybdenum billet doped by rare earth was prepared through the reduction and powder metallurgy processes.Using SEM,XRD,TEM and other detection methods,the morphology and phase of doped Mo po…
A red organic light emitting device with host 9,10-di-(2-naphthyl)anthracene (ADN)and red dopant 4-(dicyanomethylene)-2-t-butyl-6(1,1,7,7-tetramethyljulolidyl-9enyl)-4H-pyran(DCJTB)and assist blue dopant 2,5,8,11-tetra-tertbutylperylene(TBPe) was fabricated,and 4,4′,4″-tris[2-naphthyl(phenyl)amino]triphenylamine(2TNAT…
The method of phase conversion was used to emulsify the oxidized polyethylene wax to prepare oxidized polyethylene wax emulsion for leather finishing.And the main factors which can effect the properties of wax emulsion mainly were studied including sorts of emulsifiers,the amount of emulsifiers,the emulsifying tempera…
PA612/thermoplastic polyurethane elastomer (TPU) blends were prepared by melt extrusion.Interaction between theses two polymers was investigated by wide-angle X-ray diffraction (WAXD) and Fourier-transform infrared (FTIR) spectrometry.WAXD results show that the presence of TPU hinders the crystallization of PA612,lead…
By adding a little metal element Al into Cu45Zr45.5Ti9.5,BMG is successfully prepared with copper mold casting method.Differential scanning calorimetry(DSC) and X-ray diffraction(XRD) are employed to investigate the crystallization kinetics of Cu45Zr39.5Ti9.5Al under nonisothermal conditions.The effective activation e…
Objective To study the effect of novel anti-tumor nanoparticles Gd@C82(OH)22 on the efflux transporter and the relationship among MRP1 proteins,ATPase activity and this effect.Methods To study the effect of Gd@C82(OH)22 on the efflux transporter,the Calcein-AM(C-AM) intake assay was used on hamster kidney cell lines B…
All possible geometrical structures of Fe6-xAlx clusters were optimized at the BPW91 level in density functional theory(DFT).The stability and electronic structures as well as magnetic properties of the lowest-energy structures are analyzed.Theoretical results show that iron atoms are brought together,yielding a maxim…
The basic properties of SBR extended by domestic environment-friendly oil and its application in tread were studied,and the feasibility of using domestic environment-friendly oil to replace distillate aromatic extracts(DAE) and treated distillate aromatic extracts(TDAE) was analyzed.The test results showed that,the pr…
This thesis aimed to promote olefins seleetivity of the MTO/MTP catalyst by modification of HZSM-5 with alkaline earth metals(Mg,Ca,Sr,and Ba),and the Mg/HZSM-5 were the most ideal catalyst for the MTO/MTP reaction.Then the optimal reaction conditions were obtained through experiments.The reaction conditions recommend…
PPTA(poly(p-phenylene terephthalamide)) pulp is a differential product of high performance PPTA fiber which has excellent mechanical properties,and has been frequently used in composites,aeronautics,military and defense areas.A series of PPTA pulp with different beating degree(Bd) were prepared using PPTA short-cut fi…
The effect of vinylene carbonate(VC) additive on the anode surface and the performance of lithium ion battery were studied by cyclic voltammetry(CV),galvanostatic charge-discharge(GC),scanning electron microscopy(SEM),as well as Fourier transform infrared spectroscopy(FTIR).The results indicate that VC participates in…
Cage-like octa(γ-chloroammoniumpropyl)polyhedral oligomeric silsesquioxane/polylactide(OCAPS/PLLA)hybrid materials were prepared via solution blending method.SEM(scanning electronic microscopy)and EDS(energy dispersive X-ray spectroscopy)analysis show that OCAPS has good miscibility and dispersion in PLLA matrix.The c…
Effects of different heating temperature and holding time on the decomposition behavior of M2C eutectic carbide in M2 high speed steel were investigated by SEM and EDS.The results show that the degree of decomposition of M2C eutectic carbide is increased with the increase of heating temperature and holding time,but th…
Microstructures and phase of new ZW22 magnesium alloy were analyzed by metallographic microscope,X-ray diffraction (XRD),differential thermal analyzer (DTA) and scanning electron microscopy (SEM).The results show that the principal phase in ZW22 may be α-Mg,H phase,W phase,Mg2Sn particle phase and Zr.H phase and W pha…
A new electroactive polyaryletherketone containing benzonitrile(EPEEK-CN) was synthesized from 2,6-difluorobenzonitrile,p-benzenediol and difluoromonomer containing phenyl-capped aniline tetramer segment,via ternary polycondensation.The obtained EPEEK-CN shows certain extent solubility in organic solvents,and its film…
Polyhedral oligomeric silsesquionxanes-based polymer is a special type of polyhedral compound materials composed of both organic and inorganic molecules.The compound materials were studied and used in some advantaged technology place and aspect because of the distinguished optical properties,electrical properties,ther…
The branching copolymer of styrene and tert-butyl acrylate was synthesized by atom transfer radical polymerization(ATRP).Divinylbenzene(DVB),tert-butyl-2-bromoisobutyrate(t-BBiB) and the complex of CuBr/Pentamethyldiethylenetriamine(PMDETA) were used as branching agent,initiator and catalyst respectively.The formation…