Thermal stability and evolved gas analysis of rejuvenated reclaimed asphalt pavement (RAP) bitumen using thermogravimetric analysis–Fourier transform infrared (TG–FTIR)

2017 ◽  
Vol 131 (2) ◽  
pp. 865-871 ◽  
Author(s):  
Mohamed Elkashef ◽  
R. Christopher Williams ◽  
Eric Cochran
Keyword(s):  
Thermal Stability ◽  
Fourier Transform ◽  
Thermogravimetric Analysis ◽  
Evolved Gas Analysis ◽  
Asphalt Pavement ◽  
Fourier Transform Infrared ◽  
Gas Analysis ◽  
Reclaimed Asphalt Pavement ◽  
Evolved Gas ◽  
Reclaimed Asphalt

Fourier Transform Infrared Evolved Gas Analysis: Additional Considerations and Options

1981 ◽  
Vol 35 (1) ◽  
pp. 95-101 ◽  
Author(s):  
John O. Lephardt ◽  
Robert A. Fenner
Keyword(s):  
Fourier Transform ◽  
Functional Group ◽  
Evolved Gas Analysis ◽  
Group Analysis ◽  
Fourier Transform Infrared ◽  
Gas Analysis ◽  
Evolved Gas ◽  
Qualitative And Quantitative ◽  
Yield Information ◽  
Functional Group Analysis

The technique of Fourier transform infrared evolved gas analysis described previously has been expanded both with respect to data processing options and to application areas. In this paper several of these additional options and applications are described. For improved qualitative and quantitative capabilities, smoothing and integration have been found beneficial. The use of interferometric processing permits compound specific profiles to be generated quickly. By considering reaction properties, the operations of spectral subtraction and factor analysis can be shown to yield information on both reaction stoichiometries and the number of reactions occurring vs temperature. In the area of applications, the examination of polymer chain length, functional group analysis, and intermolecular interactions are discussed.

Quantification of surface functional groups on silica nanoparticles: comparison of thermogravimetric analysis and quantitative NMR

The Analyst ◽  
2019 ◽  
Vol 144 (18) ◽  
pp. 5589-5599 ◽  
Author(s):  
Filip Kunc ◽  
Vinod Balhara ◽  
Ying Sun ◽  
Malgosia Daroszewska ◽  
Zygmunt J. Jakubek ◽  
...  
Keyword(s):  
Thermogravimetric Analysis ◽  
Silica Nanoparticles ◽  
Functional Group ◽  
Evolved Gas Analysis ◽  
Potential Method ◽  
Gas Analysis ◽  
Evolved Gas ◽  
Ft Ir ◽  
Modified Silica Nanoparticles ◽  
Surface Modified

Thermogravimetric analysis (TGA) coupled with evolved gas analysis-FT-IR has been examined as a potential method to study the functional group content for surface modified silica nanoparticles.

Production and characterization of boron nitride-doped nanofiber mats created through electrospinning

2016 ◽  
Vol 47 (6) ◽  
pp. 993-1005 ◽  
Author(s):  
Yasemin Cakmak ◽  
M Fatih Canbolat ◽  
Enes Cakmak ◽  
Mehmet Dayik
Keyword(s):  
Thermal Stability ◽  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Thermogravimetric Analysis ◽  
Boron Nitride ◽  
Fourier Transform Infrared Spectroscopy ◽  
Fourier Transform Infrared ◽  
Electrospinning Method ◽  
The Fourier Transform ◽  
Nanofiber Mats

The aim of this study was to produce advanced nanofiber mats by adding boron nitride to poly (ɛ-caprolactone) polymer using an electrospinning method and to characterize the resultant structures. Pure poly (ɛ-caprolactone) nanofiber mats and boron nitride-doped nanofiber mats prepared at different concentrations were compared. The morphological structures of the nanofiber mats were examined under a scanning electron microscope, spectroscopic analyses were conducted using Fourier transform infrared spectroscopy, and thermal stability was analyzed using a thermogravimetric analysis method. Successful electrospinning of boron nitride-doped nanofibers at lower voltages was achieved. The thermogravimetric analysis test found that the thermal stability of boron nitride-doped nanofiber mats is higher than that of pure nanofibers, which suggests that the produced composite material could be preferable in applications involving insulation and high temperature. On the other hand, the Fourier transform infrared spectroscopy results indicated that no chemical reaction occurred between boron nitride and the poly (ɛ-caprolactone) nanofibers.

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