Materials Literature
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The stable isotope 56Fe was used to simulate the radioactive 55Fe,59Fe,and 52Fe ions existing in the wastewater generated by nuclear medicine and then the removal efficiency of 56Fe2+ in water was studied using chitosan functionalized multi-walled carbon nanotubes(CS-MWNTs) as adsorbent.The influences of pH,temperatur…
In order to improve the wet shear strength of soy protein based adhesive,the authors used two resins as a cross-linking agent to modify soy protein based adhesive.The modified soy protein-based adhesive was then used to make plywood samples.The results showed that when processed at 160 ℃,1.5 MPa,2 min/mm,and 380 g/m2…
The geometrical structures and nonlinear optical(NLO) properties of fourteen foreign-atom-doping(6,0) boron nitride nanotubes with B/N vacancy defect,M-Va-BNNT(a=B and N;M=Li,Na,K,Be,Mg,Ca,C and Si),were investigated with the density functional theory(DFT) method.The computational results reveal that the B/N vacancy d…
The explosion characteristics of black powder dust were studied experimentally by using the 20 L spherical explosion device designed by ourselves and the minimum ignition energy measuring device. The results show that the effect of particle size on the lower explosion limit is not noticeable. The maximum explosion pre…
Using La2O3 and Co(NO3)2·6H2O as raw material,ultrafine La-Co was prepared by template method in which PEG was severed as template agent while vacuum drying technology being adopted.The prepared materials' crystal structure and morphology were characterized by TG-DTA,XRD,FT-IR and TEM.The photocatalytic activity of ul…
A series of polysulfone(PSf)/polyaniline-Pluronic F127(PANI-F127) composite ultrafiltration membranes,using two polymers namely PANI nanofibers and triblock copolymer Pluronic F127 with different modifying mechanisms as co-additives,were prepared via immersion precipitation method.The effects of the co-additives on me…
The morphology,particle size,crystal structure,impurity and microwave absorbing properties of the aphanitic graphite were studied in order to explore the applications of the aphanitic graphite in microwave absorbing materials.The results indicate that the absorbing properties of the aphanitic graphite/LDPE composites…
An effective method of using cellulosic substances(filter paper) as template was employed to prepare SnO2nanotubular materials examined as anode for Li-ion battery. According to XRD, SEM, TEM and HR-TEM analysis,the synthesized nanotubular materials retained morphological hierarchy of the filter paper, and each nanotu…
La(OH)3nanoparticles with various morphologics(i.e.,irregular,sheet and rod) were synthesized using La(NO3)3.6H2O as raw materials by a microwave hydrothermal method.The phase composition,morphology and optical properties of as-prepared samples were characterized by X-ray diffraction,field emission scanning electron m…
The DeNOx efficiencies of two typical SCR catalysts before and after service were examined with NH3 as a reducing agent under different temperatures and NH3/NO ratios on the experimental platform for SCR catalyst activity detection.The activity variation of catalysts after service was analyzed.The apparent kinetic par…
The long afterglow phosphor of Sr2MgSi2O7:Eu2+,Dy3+ was synthesized by high temperature solid state method.Polypropylene luminescent fiber containing this phosphor was prepared by melt spinning.Micro morphology,phase structure,spectral features and afterglow properties of the luminescent fiber were tested.The results…
Lvhua 9peaches were used to explore the effects of 1%chitosan and 2%chitosan treatments on the quality of peaches stored at(0±1)℃and relative humidity 80%～95%.Physicochemical indexes of various treatments were compared.The results showed that compared with CK,chitosan coating treatment could significantly reduce the d…
Tri-layer composite NiO-8%Y2O3/ZrO2(YSZ) anode supported single cell for solid oxide fuel cell(SOFC) was fabricated via tape-casting,and high performance cathode La0.6Sr0.4Co0.2Fe0.8O3–δ(LSCF) was fabricated at a low temperature via infiltration in porous YSZ.The morphology-controlled and uniformly-distributed nano-el…
The mechanical properties of T700/3234 Laminate were studied in this paper,T700/3234 Laminate ply was [45°/-45°/0°/90°/0°]1S.T700/3234 unidirectional carbon fiber reinforced epoxy prepreg cured at 125℃ is suitable for autocalve processing method.The tensile properties、compress properties flexural properties,interlamin…
The paper provides an overall introduction of the status of practical superconducting joints preparation technology,assesses characteristics of certain current important superconducting joints preparation technologies such as brazing joint,diffusion welding joint,dip welding joint,sintering process joint and cold pres…
A graphene-polypyrrole nanotube hybrid is fabricated by chemical hybridization method.Scanning electron microscopy,transmission electron microscopy,fourier-transmission infrared spectroscopy,X-ray photoelectron spectroscopy and electrochemical workstation are used out to characterize the morphology,structure and prope…
Fish skin of Clarias fuscus was a by-product of freshwater aquatic products processing, which is rich in resources. To improve the utilization of aquatic by-products, the fish skin of Clarias fuscus was used as raw materials for acid-soluble collagen(ASC) extraction at 4 ℃.It's the physicochemical of the extracts was…
The situation of energy-conservation and discharge-reduction for the foundry industry in our country,the development objective in development project in the 12th Five-Year Plan as well as the new method and application for energy-conservation and discharge-reduction for the foundry industry are introduced in the paper…
In order to improve the mechanical and tribological properties of nitrile rubber( NBR),the surface chemical modification w as performed w ith the oxidation solution mainly formulated by the concentrated sulfuric acid. The effect of sulfuric acid concentration and immersion time on both mechanical and tribological prop…
Through the hardness,impact toughness,tensile strength,yield strength and metallographic analyses,we research the effects of heat treatment process on microstructure and mechanical properties of die material H13 steel.The results indicate that H13 steel can make the hardness meet large extrusion die design requirement…