Materials Literature
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The research advances in toughening modification of epoxy resin for recent years at home and abroad and the toughening mechanism were reviewed,involving thermoplastic resin,thermotropic liquid crystal polymers,interpenetrating network polymers,inorganic nanoparticles,core-shell structure polymer and hyperbranched poly…
Gd2Zr2O7 was prepared by solid state synthesis and its phase stability and thermo-physical properties were investigated.The Gd2Zr2O7-8YSZ(8%Y2O3-ZrO2)double-ceramic-layer thermal barrier coatings was prepared by electron beam physical vapour deposition.The crystal structure and atomic number ratio of the top coating w…
An ultrasonic/H2O2 system was used to degrade levofloxacin,and some influencing factors such as H2O2 concentration,ultrasonic power and initial pH value were investigated.The results indicated that the ultrasonic/H2O2 system had a marked synergetic effect in the removal rate of levofloxacin compared with the single ul…
In this study,a female silkworm parthenogenetic line Female-29 with high hatching rate was bred by employing parthenogenetic cloning and directional selection techniques and a silkworm egg color sex-limited line Egg-36 was bred through introducing sex-limited marker genes and backcross improvement. F1hybrid silkworm e…
The adjusting procedure of ultrasonic sewing machine will be simplified accordingly by use of this ultrasonic welding factor rather than the conventional repetitive trial-error adjustments on ultrasonic power,pressure and speed of pattern roller respectively.The effects of the pressure and speed of pattern roller,and…
Hydrophobic copper phthalocyanine blue organic pigment(PB)can be effectively encapsulated by co-poly(styrene-acrylate)via in-situ micro-suspension polymerization.In order to adjust and control the morphology of pigment microcapsules,the effects of homogenization shear rate,agitation speed,dispersant TCP amount and pig…
High performance shielding fabric and cuprum wire screen were synthesized via special composite way with high temperature and high pressure to develop the new composite flexible shielding material.What's more,the performance of shielding material was detected and its application was analyzed.The results showed that th…
The influence of different winding speed on the orientation structure,boiling water shrinkage and the mechanical properties of the combined filament yarn of PET-POY is studied by using the same process of high speed spinning and different shrinkage combined filament in one step,and keep the second drawing roller under…
By using P123 as the sole template and under hydrothermal condition,the ZSM-5/SBA-15 composite molecular sieves were prepared by post-synthesis method.Catalyst was prepared by loading different ratio of ZrSO4 on the carrier and characterized by means of XRD、BET and N2 adsorption-desorption.The results show that the co…
The conditions for preparing ceramic slurry with higher solid content were optimized by Zeta potential,sedimentation and viscosity tests.The effects of pH value and the amount of dispersant on the rheological behavior of aqueous Yb∶YAG slurry were analyzed.The slurry was slip-casted to form dense green compact with de…
The static CCT curve was investigated by continuous cooling transformation method on automatic transformation instru ment,and the microstructure changes of X100 pipeline steel under different cooling rates were analyzed.The results show that the microstructure of X100 pipeline steel is composed of bainite and ferrite.…
Adsorptive denitrogenation is one of the widely used methods nowadays.ITS adsorption effects are various with dryerent adsorbents.According to the surface polarity,the adsorbent can be classified as polar adsorbent and non-polar adsorbent.The activated alumina,silica gel,car clazyte,molecular sieve and molybdophosphor…
Two series of CeO2 materials were prepared by two different synthetic routes,i.e.the conventional ammonia precipitation route(CR) and the ammonium carbonate hydrolysis route(HA) using(NH4)2 CO3 in the presence of hydrogen peroxide.The formation process and decomposition behavior of the precipitates were investigated b…
Solid phase decarburization of high-carbon ferrochrome powders by microwave heating is involved with the decomposition of carbides and migration of carbon.The decarburization difficult degree is closely related to the microstructure and phase structure of high-carbon ferrochrome.The microstructure and phase structure…
A novel copolymer was synthesized using acrylamide(AM),2-acrylamido-2-methyl propane sulfuric acid(AMPS),Diallyl dimethyl ammonium chloride(DMDAAC)and N-Allyl heptanoic acid amide(NEA).Structural and morphologic characterization was studied by IR and ESEM respectively.The reaction conditions were optimized such as tem…
Based on the propagation characteristics of microwave and the microwave sensitivity to the interface,the phase difference at the interface of thermal barrier coating(TBC) and waveguide probe was used to characterize the long crack on the metal substrate surface under TBC using computer simulation technology-microwave…
The tribology properties of high and low temperature of the overbased complex calcium sulfonate grease made in laboratory were evaluated by using Optimol SRV reciprocating friction and wear tester.The worn volume and worn surface chemical composition of steel-steel contact were observed and analyzed by 3D figure scann…
We conducted investigation on polymeric binders for anti-static coating agent which can maintain stability under the high-voltaic condition. Various polyesters composed of polyethylene glycol (PEG) and polypropylene glycol (PPG) were synthesized and studied in term of the variation in the surface resistance of the fil…
Graphene has aroused a researching rush in the world since it was prepared in 2004.The scientists in various fields such as physics,chemistry and materials has paid great interests in its preparation,characteristics and applications.With overview of the achievements of graphene preparation and applications,surface sci…
This paper elaborates the bread aging mechanism,and summarizes the research progress in a series of analysis technique about application in the bread aging,such as the differential scanning calorimeter instrument,nuclear magnetic resonance(NMR) spectroscopy,X- ray diffraction and the near infrared spectral analysis te…