Results 11 to 20 of about 8,287,589 (343)

Thermal Degradation on Already Oxidatively Degraded Solutions [PDF]

open access: yesEnergy Procedia, 2013
AbstractCO2 capture with alkanolamines has been in use since 1930, where 2-ethanolamine (MEA) is the most studied absorbent for post-combustion. In order to prevent degradation, it is important to understand the degradation mechanisms, which in turn requires knowledge of both stoichiometry and kinetics of the reactions and chemical pathways associated ...
Vevelstad, Solrun Johanne   +3 more
openaire   +3 more sources

Thermal degradation of polymers at high temperatures

open access: yesJournal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1959
Work on thermal degradation of polymers has previously been carried out at temperatures up to about 500° C. In the present work the range has been extended to 850° C. Polystyrene was pyrolyzed in a vacuum and also in helium at atmospheric pressure at 362° and at 850° C.
Madorsky, Samuel L., Straus, Sidney
openaire   +3 more sources

Characterisation of the mechanical and thermal degradation behaviour of natural fibres for lightweight automotive applications [PDF]

open access: yes, 2013
It is well established that light-weighting of automotive parts leads to reduced carbon emissions over vehicle lifetime. Mineral fibres and fillers have a relatively high density and may require high levels of energy in their production, resulting in a ...
Liggat, John   +3 more
core   +3 more sources

Study of ignition parameters and the thermooxidative degradation of wood in the presence of flame retardants with a bioprotective effect [PDF]

open access: yesНанотехнологии в строительстве, 2023
: Introduction. This study aims to carry out comprehensive comparative research of thermal degradation and inflammation parameters of timber covered with fire resistant biological flame retardants of different chemical composition.
Artem A. Kobelev   +4 more
doaj   +1 more source

Combined kinetic analysis of thermal degradation of polymeric materials under any thermal pathway [PDF]

open access: yes, 2009
Combined kinetic analysis has been applied for the first time to the thermal degradation of polymeric materials. The combined kinetic analysis allows the determination of the kinetic parameter from the simultaneous analysis of a set of experimental ...
Pérez Maqueda, Luis Allan   +3 more
core   +3 more sources

Development of a Novel Bronchodilator Vaping Drug Delivery System Based on Thermal Degradation Properties

open access: yesPharmaceuticals, 2023
This work aims to investigate bronchodilator delivery with the use of different vaping drug delivery systems (VDDS) by determining the dose equivalence delivered in relation to different references: a clinical jet nebulizer, a pMDI (pressurized metered ...
Mariam Chaoui   +5 more
doaj   +1 more source

Degradation in a Thermal Barrier Coating [PDF]

open access: yesAdvanced Ceramic Materials, 1987
The failure of a thermal barrier coating involves cracking and spalling of the ceramic layer, primarily brought about by bond-coat oxidation during operation. The present investigation focuses on the microstructural and microchemical changes in a thermal barrier coating, oxidized in air for 1 and 10 h at 900{degree}C.
Shinde, S.L.   +2 more
openaire   +2 more sources

Detecting, characterising and assessing PEEK’s and CF-PEEK’s thermal degradation in rapid high-temperature processing [PDF]

open access: yes, 2022
The work was enabled through, and undertaken at, the National Structural Integrity Research Centre (NSIRC), a postgraduate engineering facility for industry-led research into structural integrity established and managed by TWI through a network of both ...
Worrall, C, Kazilas, M, Gaitanelis, D
core   +1 more source

Analysis of the Aerosol Generated from Tetrahydrocannabinol, Vitamin E Acetate, and Their Mixtures

open access: yesToxics, 2022
E-cigarette, or vaping, product use–associated lung injury (EVALI) outbreak was linked to vitamin E acetate (VEA) used as a solvent for tetrahydrocannabinol (THC).
Vladimir B. Mikheev, Alexander Ivanov
doaj   +1 more source

Thermo-kinetic and spectral studies of niobium(V) complexes with 3-substituted-4-amino-5-mercapto-1, 2, 4-triazole Schiff bases [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
Metal complexes of niobium(V) with 3-substituted-4-amino-5-mercapto 1,2,4-triazole Schiff bases have been synthesized in dry chloroform under a nitrogen atmosphere.
Gudosi Kalagouda B.   +2 more
doaj   +1 more source

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