منابع مشابه
Thermogravimetric analysis of waxes.
Differential thermal analysis and calorimetric analysis of commercial and dental waxes have been reported in the dental literature."2 Thermogravimetric analysis is described in most textbooks on thermal analysis3-5 and is essentially a method of measuring the weight of a sample as a function of temperature or as a function of time at a fixed temperature. The purpose of this study was to examine...
متن کاملFormation and rupture of Ca(2+) induced pectin biopolymer gels.
When calcium salts are added to an aqueous solution of polysaccharide pectin, ionic cross-links form between pectin chains, giving rise to a gel network in dilute solution. In this work, dynamic light scattering (DLS) is employed to study the microscopic dynamics of the fractal aggregates (flocs) that constitute the gels, while rheological measurements are carried out to study the process of ge...
متن کاملDetermination of Coal Rank by Thermogravimetric Analysis
INTRODUCTION The thermogravimetric analysis patterns of coals and their residues reveal subtle differences between coals and changes which occur during the processing. It is the purpose of this paper to call attention to some of the various processes occurring during the TG analysis, and to show how these patterns can be interpreted in terms of changes or differences in coal structure. It is al...
متن کاملThe effect of different storage temperatures on the physical properties of pectin solutions and gels
The stability (in terms of viscosity and gel strength) of pectin solutions and gels potentially plays an important role in their behaviour and functional properties in a wide range of applications and therefore any changes over time must be understood. The gel strength of pectin gels and intrinsic viscosity of pectin solutions at different temperatures (4°C, 25°C and 40°C) have been investigati...
متن کاملPyrolysis Kinetics of Waste High-density Polyethylene using Thermogravimetric Analysis
Thermal behavior of plastic materials can be improved by knowing thermal degradation kinetics for the optimal design and operation of pyrolysis process. In the present study, thermogravimetric analysis has been used for the non-isothermal kinetic study of waste high-density polyethylene pyrolysis under nitrogen atmosphere at different heating rates 10, 20 and 40 °C/min. The kinetic parameters, ...
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ژورنال
عنوان ژورنال: ScienceRise
سال: 2015
ISSN: 2313-8416,2313-6286
DOI: 10.15587/2313-8416.2015.45905