Showing papers in "Thermochimica Acta in 2010"

TL;DR: In this paper, the pyrolysis kinetics of four types of lignin (Alkali, Hydrolytic, Organosolv and Klason) were investigated using thermogravimetric analysis (TGA).

TL;DR: In this paper, a new asymmetric power compensation scheme was developed to enhance the performance of the fast scanning calorimetric sensors, and the hardware realization of the scheme and calculation of differential power were presented in the first part of this paper.

TL;DR: In this paper, the empirical Neumann-Kopp rule (NKR) for the estimation of temperature dependence of heat capacity of mixed oxides is analyzed, and it is shown that at very low temperatures, the validity of NKR is mainly determined by the relation between the characteristic Debye and Einstein temperatures of a mixed oxide and its constituents.

TL;DR: In this paper, the effects of loading level of micro or nano size BN particles on the thermal, mechanical, and morphological properties of silicone rubber are investigated, and five types of BNs are found to be well-dispersed in silicone rubber matrix despite some local agglomerates.

TL;DR: In this article, polystyrene microcapsules containing paraffin wax were synthesized by suspension-like polymerization process, and their suitability for textile applications was studied.

TL;DR: The thermal decomposition mechanism of hydromagnesite is sensitive to many factors including rate of heating and the composition of the atmosphere as discussed by the authors, and the partial pressure of carbon dioxide significantly affects the decomposition mechanisms of the mineral, causing magnesium carbonate to crystallise and decompose at higher temperature instead of decomposing directly to magnesium oxide.

TL;DR: In this paper, nanoparticles were found to be effective nucleaging agents in cases of silica nanoparticles and oxidized multi-walled carbon nanotubes (o-MWCNTs), and the nucleation activity was calculated.

TL;DR: In this paper, a differential fast scanning nano-calorimeter utilizing a new power compensation scheme is described. But the authors focus on determination of specific heat capacity out of the measured data.

TL;DR: In this article, the combustion and co-combustion characteristics of three biomass fuels and three Turkish lignite coals were investigated by using a thermo gravimetric analyzer.

TL;DR: In this article, the effect of post-treatment temperature on surface chemistry was investigated for carbide-derived carbons produced by chlorination of titanium carbide at 600, 800, or 1100°C were subjected to a posttreatment at 600°C in Ar, H2 or NH3 atmosphere.

TL;DR: In this paper, the authors developed a new route for the synthesis of highly porous mixed-linker metal-organic frameworks (MIXMOFs) where 5% and 10% of the benzene-1,4-dicarboxylate linkers have been substituted by a functionalized linker, namely 2-aminobenzene- 1,4dicaranoxylate.

TL;DR: In this paper, the effect of molecular weight on thermal characteristics and thermal degradation of poly(ethylene glycol) (PEG) and poly (ethylene oxide)s (PEO) was investigated by differential scanning calorimetry, FT-IR spectroscopy and dynamic thermogravimetry.

TL;DR: In this article, the thermal analysis of raw and defatted sisal fiber and its chemical constituents (cellulose, hemicellulose and lignin) was performed by thermogravimetric analysis, and differential scanning calorimetry under inert and nitrogen atmospheres.

TL;DR: In this paper, a series of fabrics containing different mass ratios of polyurethane binder to microcapsules were prepared by a padding process, and the results indicated that the polymeric binder plays a main role during the 30-s of a cold to warm transition allowing to delay the temperature increase.

TL;DR: In this paper, single-walled carbon nanotubes (SWNTs) and double-weled carbon nanotsubes (DWNTs), with optimized aspect ratio can be obtained by adjusting the ball milling parameters.

TL;DR: In this article, a new set of empirical equations is proposed to correlate the solubilities of solids in supercritical carbon dioxide (both in the presence and absence of cosolvents) as a function of temperature, density of super critical carbon dioxide and the mole fraction of cosoline.

TL;DR: In this paper, the authors studied the thermal stability and degradation mechanism of [Amim]Cl using isothermal thermogravimetric analysis (TGA) experiments and density functional theory (DFT) calculations.

TL;DR: In this paper, the authors investigated the de-hydroxylation of medium ordered kaolinite under isothermal conditions by the thermogravimetric analysis (TGA).

TL;DR: In this paper, a composite thermal energy storage material with mixtures of MgSO 4 and MgCl 2 hydrates was investigated for suitability as a composite thermochemical heat storage material.

TL;DR: In this article, the activation energies were determined from thermogravimetric analysis (TGA) data using Kissinger and the Flynn-Wall-Ozawa methods, which do not require knowledge of the reaction mechanism.

TL;DR: In this paper, temperature dependence of ionic conductivity, crystallographic structural, morphological and thermal characteristics of polymer blends of PMMA and PVC with lithium bis(trifluoromethanesulfonyl) imide (LiTFSI) as a dopant salt are investigated.

TL;DR: In this paper, the influence of wax content on the thermal and tensile properties of PE/wax blends was investigated and it was found that the presence of wax generally caused a reduction in tensile property, but the extent of wax influence depended upon the morphology of the polyethylene.

TL;DR: In this paper, stable water-based nanofluids containing multi-walled carbon nanotubes (MWNTs) were prepared using cationic gemini surfactant as stabilizer.

TL;DR: In this article, the pyrolysis was studied by thermogravimetry (TG), TG-FTIR and NMR, the fire behaviour with a cone calorimeter applying different heat fluxes, LOI and UL 94.

TL;DR: In this article, the authors used the Kissinger-Akahira-Sunose (KAS) method to calculate the activation energy vs. the conversion degree of the reaction on the whole temperature domain.

TL;DR: In this article, a state diagram of bovine gelatin was developed by measuring the freezing curve, glass transition, unfolding, solids-melting lines, and ultimate maximum-freeze-concentration conditions.

TL;DR: In this article, an experimental study on subcooling and nucleation in paraffin-in-water emulsions was conducted and different material systems with the average droplet size from 0.2 to 12.5μm were prepared and analyzed.

TL;DR: In this paper, the effects of starch and wood flour (WF) on the thermal stability of PLA using thermogravimetric analysis (TGA) in a nitrogen atmosphere, and TG-FTIR was investigated.

TL;DR: In this paper, high-exfoliated CoAl-layered double hydroxide (CoAl-LDH)/polycaprolactone (PCL) nanocomposites were successfully synthesized by simple solution intercalation of PCL into the galleries of organically modified CoAl -LDH under reflux in cyclohexanone, and the structure and thermal properties were characterized by Fourier Transform Infrared spectroscopy (FTIR), X-ray diffraction (XRD), Transmission Electron Microscopy (TEM), Thermal Grav

TL;DR: In this article, a series of PET nanocomposites were prepared by in situ polymerization using different amounts of organically modified montmorillonite (OMMT) with a triphenylphosphine compound and fumed silica nanoparticles (SiO 2 ).