Materials Literature
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The interfacial performances,such as surface tension,critical micelle concentration,wetting permeability,foaming capacity and emulsifying power of one self-made polyether-modified polysiloxane phosphate were investigated.The polyether-modified polysiloxane phosphate was used as fat liquor in leather processing.The res…
Cordierite was synthesized using decomposed magnesite,industrial alumina and SiO2 powder as raw materials.The effect of chromic oxide on composition,cell parameters,crystalinity and microstructure of crystalline phases,grain size,microstructure and content of cordierite was studied.XRD and SEM were used to characteriz…
A new kind of inhibitor,acrylic acid-sodium allylpolyethoxy carboxylate copolymer(AA/APEC) is synthesized with acrylic acid(AA) and sodium allylpolyethoxy carboxylate(APEC) as monomers.The effects of the dosage of AA/APEC,concentration of Ca2+ and SO2-4,solution pH,temperature and time on the inhibition of calcium sul…
The antitumor and immunomodulatory activity of a polysaccharide(LDG-A) extracted from Lactarius deliciosus fruit bodies were evaluated.Polysaccharide was administered by intraperitoneal injection into tumor-bearing Kunming mice and the tumor inhibition rate and various organ indices were determined.LDG-A significantly…
Polyurethane(PU) adhesive was prepared by bulk polymerization in this paper.Various factors which influence the striping intensity of polyurethane adhesive,e.g.,the mole ratio of the isocynate groups in Toluene diisocyanate(TDI) and hydroxyl groups in polybutylene(PBA),the mole ratio of 1,4-butanediol(BDO) and PBA,and…
The crude magnesium fabricated by magnesium silicothermic process was used as the starting material to fabricate 5 kinds of purified magnesium sacrificial anodes with different impurity contents by metal mold casting process.The variation of impurities in the purified Mg sacrificial anodes during the melting-casting p…
The butadiene(Bd) and isoprene(Ip) copolymerization was carried out using neodymium bis(2-ethyl-hexanol) phosphonate(simplified as Nd)/diisobutylaluminum hydride(simplified as Al)/diethylaluminum chloride(simplified as Cl) catalyst,the influences of reaction conditions on Bd and Ip copolymerization were studied,and th…
With tannin as target pollutant,the effects of such factors as the initial concentration pH,adsorption time,and adsorbent dosage on the adsorption of acid-thermal modified sepiolite are analyzed.At the same time,the chemical properties of the natural sepiolite,acid-thermal modified sepiolite and adsorption of tannic s…
Recombinant porcine Aminoacylase Ⅰ(pACY1) was expressed in Pichia pastoris,and had been charactered.The recombinant strain GS115-pacy1 was constructed.Recombinant pACY1 were purified from its culture after methanol inducing by Phenyl-Sepharose and Q-Sepharose.Then the kinetic parameters of the purified enzymes were de…
The continuous cooling transformation of deformed austenite of non-quenched and tempered steels for grade 10.9 fasteners was investigated by DIL thermal dilatometer.The results show that the uniform granular bainite can be obtained under the condition of deformation temperature 800 ℃,cooling rate 3-5 ℃/s.The Rockwell…
Using BP neural network to study the factors influencing the flexibility of spunlace non-woven fabrics,through analysing the main factors affecting the flexible-material ratio and the mode of net laying.First of all,we should process the experimental data and complete it through the gray system prediction,then,train a…
The two-component room temperature vulcanized silicone rubber were prepared with dibutyltin dilaurate as accelerator,tetraethyl orthosilicate as curing agent,silica and cerium oxide as filler.The effect of amount of cerium oxide on thermal performance of two-component room temperature vulcanized silicone rubber was in…
Free-standing nanowire arrays were fabricated by a simple and controllable method.Metal nanowire arrays of Cu,Ag and Au were electrodeposited using cyclic voltammetry with assistance of anodic aluminum oxide template.Scanning electron microscope(SEM) results demonstrated that the percentage of pore filling was very hi…
Equal channel angular pressing(ECAP) technology was applied to Al-26%Si alloy for refining the microstructure,the impact property and fracture morphology of the alloy were studied at different temperatures.The results show that ECAP could effectively refine grains of the alloy,decrease block primary silicon size and p…
In this paper,according to the characteristics of bridge shell parts from dirt,put forward the technical requirements in cleaning bridge shell parts required for water-based metal cleaning agent,and based on the technical requirements,a number of water-based metal cleaning agent for detection,evaluation,on the assessm…
The detectors which are based on the third era semiconductor material SiC offer several important advantages over gas,scintillator and conventional semiconductor neutron detectors,such as compact size,faster charge-collection times,better location and spatial resolution,temperature and radiation hardness et al.A detec…
By analyzing classification, working principle of positioning and clamping, empirical formula of clamping torque and using principle of clamping elements of Kostyrka clamping elements for slideways, application characteristics of Kostyrka clamping elements in rotary functional components of machine tools were introduc…
To introduce the application of chitosan in fracture treatment,including the Application of chitosan in fracture healing, bone transplantation, bone scaffolds, phosphate cement and etc. Chitosan has a high degree of bioactivity and medical value, and the application of chitosan in fracture treatment is prospective.
Relative to lead brass,the bismuth brass is unharmful to human body and environment and can be applied to many engineering fields as a substitute of the lead brass.The bismuth brass has been developed,and its machinability,mechanical properties and corrosion resistance have been investigated in such countries as Japan…
The mechanism of self-repairing smart structure based on optical-fiber sensing and shape memory alloy are introduced,then starting from the researches on materials selection and control system exploitation,the status of the research in this field is presented.Problems of each study and future research directions in th…