Materials Literature
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Organic silicon compounds (siloxanes) contained in wastewaters tend to accumulate in sewage sludges, and during sludge treatment in digester tanks, they are released into the digester gas. When digester gas is burned in gas engines, silicone-containing deposits are formed, which lead to greater wear and tear and may d…
The structures and performances of the native kapok fibers were studied.The kapok fiber has thin wall and huge lumen,the hollow ratio can reach 97%.One end of the fiber tapers to one point and is closed,and the other end is bulbous shape and may be closed tightly.The bulk density of the fiber is 0^30 g/cm3.The kapok f…
The products from Fischer-Tropsch synthesis process, without S, N and aromatic hydrocarbons, are clean and environmentally friendly. But they contain a large number of alkene and oxygenates, especially acid oxygenates, which erode equipment and need to be hydrorefined. Therefore, the study on the novel hydrodeoxygenat…
Biodegradable plastics have received great attention in polymer industries from the ecological view point. A number of plastics with biodegradability properties have been developed over the recent decades. In this study, several types of biodegradable plastics were selected: poly (butylene succinate) homopolymer (PBS)…
o C with a thin layer of an adhesive) are increased 38%, 209% and 267%, respectively. The reason behind this significant enhancement is demonstrated to be relat- ed to the debond strength of the core-face interface. It has been demonstrated that the debond strength of the core-face and core plays an important role in…
Dielectric spectroscopy measurements below 1 Hz are often dominated by "conduction-like" effects. For this reason, they often appear to be dismissed as being of little interest. In this paper two "sub-hertz" responses are considered that give insights into the insulating systems concerned. The first system is that of…
Aviation fuel is a petroleum product that fulfills the Standard Specification for Aviation Turbine Fuels. Crude oil has been the raw material for production of aviation fuels for many years. Since the availability of crude oil is predicted to be limited in the future, alternative raw materials for aviation fuels are h…
The effect of ultraviolet light (UV) irradiation (254 nm, 0.8 mW/cm 2 ) on air-formed oxide films and passivated films on iron was investigated by electrochemical methods and scanning tunneling microscopy (STM), in particular with respect to surface micro/nanostructures and the surface protective property. An as-depos…
We have first recalled the T (LIESST) procedure which consists to determine the temperature above which the photo-magnetic effect is erased. In addition we have selected to series of iron(II) spin crossover complexes, the [Fe(PM-L) 2 (NCS) 2 ] and [Fe(bpp) 2 ]X 2 ·nH 2 O families, to analyse the influence of the coope…
Abstract The effect on AA2024‐T3 of a non‐chromate deoxidizer based on Fe(III)–HF–HNO 3 has been examined by atomic force microscopy, x‐ray photoelectron spectroscopy and scanning electron microscopy. Magnesium and silicon present on the surface after alkaline cleaning was removed very rapidly at room temperature. The…
Planar structures consisting of oxidized copper granules obtained by laser electrodispersion are studied. The samples have different packing densities of granules and different amounts of their chains and aggregates. Each granule 5.5 ± 0.5 nm in size consists of a copper core with an amorphous structure and an oxide s…
This paper focuses on the dependence of the rheological properties of PLA-PEG and PLGA dispersions and films on the polymer structural properties, in order to obtain useful information to predict and explain the performance of polyester films as drug-delivery systems. In this study, one PLA-PEG and three PLGA polymers…
Terminalia bellerica (Bahera), a natural gum, was used as an additive in water-based natural rubber adhesive formulations. The lap shear strength of joints with wood substrates increased with the increase of natural gum concentration up to 80 phr (parts per hundred parts of rubber) loading. Similarly, the peel strengt…
Experimental studies have been carried out to produce single-walled carbon nanotubes (SWCNTs) by pulsed wire discharge (PWD). To prepare soot, carbon fibers were discharged in nitrogen gas by PWD. Soot was collected after the discharge and was observed by means of high-resolution transmission electron microscopy. In t…
The purpose of the present work was to clarify the effects of parameters of porous ceramics on the characteristics of composites fabricated by high-pressure infiltration. Alumina with different porosity (15–70 vol%) and pore morphology was successfully fabricated by gelate-freezing and the partial-sintering, respectiv…
The near-IR luminescence in thin films of metal-free phthalocyanine and phthalocyanine complexes is investigated at room temperature. It is shown that the intensity of the luminescence peaks depends on the polymorphic modification and the structure of the complexes, whereas the peak positions remain virtually unchange…
Alkaline-earth (M2+) aluminates MAl2O4 doped with Eu2+ show efficient fluorescence and phosphorescence. In this study the properties of the concentrated europium aluminate EuAl2O4 and of samples partially substituted with Ca2+, Sr2+, Ba2+ are investigated. X-ray diffraction data and a characterisation of the luminesce…
A combination of poly(diphenylmethane diisocyanate) (PMDI) and stearic anhydride was investigated as a new compatibilizer system for improving the interfacial adhesion between wood and polyethylene (PE). The treatment of wood flour with PMDI increased both the modulus-of-rupture (MOR) and the modulus-of-elasticity (MO…
Liposomes are known to be taken up by the liver cells after intravenous injection. Among the few techniques available to follow this process in vivo are perturbed angular correlation spectroscopy, nuclear magnetic resonance spectroscopy, and scintigraphy. The study of the intracellular pathways and liposomal localizat…
The trace additions of Ag to binary Al-Mg alloys promote precipitation of a phase in the under-aged condition. The structures of the phase in an Al-10 Mg-0.5 Ag (mass%) alloy have been characterised using transmission electron microscopy and electron microdiffraction. An icosahedral quasicrystalline phase, which is id…