Hexakis(4-nitrophenoxy) cyclotriphosphazene (HNTP) with ammonium polyphosphate (APP) were added to acrylonitrile–butadiene–styrene copolymer (ABS) to improve the intumescent flammability and thermal properties of ABS. The effect of intumescent flame retardancy was characterized by limited oxyg...

The focus of this paper is the investigation of the combined influence of hydrogen and pre-plastic deformation on hydrogen's absorption/desorption behavior, the microstructure and microhardness of a single-phased β-21S alloy. In this study, thermal desorption analyses (TDS) evaluation of v...

An investigation of decomposition of Trigonox 21S in Shellsol T has been carried out using the proposed algorithm. A series of calorimetry experiments were performed, where temperature and pressure of the system were monitored. The numerical code has been developed using an annealing optimisatio...

Titanium alloy β-21S (Ti–15Mo–3Nb–3Al–0.2Si) was coated with molybdenum doped DLC by Plasma-enhanced chemical vapor deposition and sputtering. XRD, XPS and Raman spectroscopy show that Mo is present in the form of carbide in the coating. XPS of samples immersed in Hanks’ solution shows pre...

Ti Beta 21S is a new metastable beta titanium alloy which is generally known to be one of the most difficult materials to machine because of its high hardness, high strength at high temperature, affinity to react with the tool materials, and low thermal diffusivity. In this paper, the tool wear ...

Different characteristics of hydrogen's absorption/desorption behavior and trapping in β-21S titanium alloy are studied by means of thermal desorption spectroscopy (TDS). Spectra analysis is supported by data from variety of other experimental techniques, such as LECO hydrogen determinator...

Selective surface aging treatments (mechanical surface treatment followed by aging) on β-titanium alloys can result in higher endurance limits than conventional mechanical surface treatments. An explanation of fatigue behaviour of selectively surface aged parts should not only consider preferen...

The β-titanium alloy, Timetal 21S, was welded by the friction stir welding process. Good weldability was demonstrated for a range of welding parameters. A torsion texture was observed in all welds.

One of the major environmental issues in Finland is the presence of large tracts of acid sulfate soil (ASS) landscapes along the coast. Accurately identifying the distribution of ASS sediments, and in particular soil pH, is essential for developing targeted management strategies. One approach is...

The present study assessed the biological potential of fourteen 1,3-thiazolidin-4-ones evaluating the antiglioma effect through decreasing of cell viability of glioblastoma multiform cells. The new compounds were efficient synthesized through multicomponent or multicomponent one-pot procedures i...

Solid-phase microextraction (SPME) and single-drop microextraction (SDME) in headspace mode, were used in the residual determination of the anesthetic 2-phenoxyethanol in fish fillets, to ensure food safety. For the optimization of the methodologies the experimental central composite design (CCD...

The vapour pressures of (2-amino-2-methyl-1-propanol (AMP) + water), (N-benzylethanolamine + water), or (3-dimethylamino-1-propanol + water) binary mixtures, and of pure AMP and 3-dimethylamino-1-propanol components were measured by means of two static devices at temperatures between 283 K and 3...

In this work, the experimental vapor pressures of four amines 1,2-bis(dimethylamino)ethane, 1-methylmorpholine, 1,2-bis(2-aminoethoxy)ethane and N-benzylethanolamine using a static apparatus are reported. The temperature range is comprised between 273.18 and 364.97 K and the pressure range betwe...

Vapour pressures and the molar enthalpies of vapourization of the γ-lactones (γ-valerolactone, γ-hexanolactone, γ-heptanolactone, γ-nonanolactone, and γ-decanolactone) have been determined by the transpiration method. These results together with a large number of experimental data from the...

Aerobic selective oxidation of allylic aldehydes offers an atom and energy efficient route to unsaturated carboxylic acids, however suitable heterogeneous catalysts offering high selectivity and productivity have to date proved elusive. Herein, we demonstrate the direct aerobic oxidation of cinn...

A series of carbon nanotube (CNT)-supported bimetallic PtFe nanoparticles were synthesized and employed as catalysts for hydrogenation of cinnamaldehyde in pure water. A synergy between water and bimetallic PtFe catalysts has allowed the efficiently selective production of cinnamyl alcohol. With...

Plant cell walls protect plants from heavy metal stress by resistance, transport and the adsorption process. Cell walls are impregnated with lignin, which enables structural integrity, long-distance water transport and protects plants from many types of stress. Cinnamyl alcohol dehydrogenase (CA...

A multifunctional photocatalyst is constructed based on Cu-Cu2O hybrid and monolayer H1.4Ti1.65O4·H2O nanosheets via an in situ photo-deposition process (Cu-Cu2O/TNS). The prepared sample enables the oxidation of cinnamyl alcohol to cinnamaldehyde with over 95% of selectivity under visible ligh...

BN-supported Pt catalysts were prepared by an impregnation method using Pt(NH3)4(NO3)2 as metal precursors and tested in the liquid-phase selective hydrogenation of cinnamaldehyde. It was found that the Pt/BN catalyst exhibited a high performance for the selective CO hydrogenation at room temper...

The CeO2-supported ternary RuSnB catalysts were synthesized by incipient wetness impregnation procedures and applied in hydrogenation of cinnamaldehyde in pure water as the solvent. A synergy effect between Ru-based catalysts and water molecules has afforded the efficiently selective transformat...