Results 21 to 30 of about 305,051 (312)

The Effect of Acid Hydrolysis Parameters on the Properties of Nanocellulose Extracted from Almond Shells

open access: yesJournal of Natural Fibers, 2022
The effects of acid hydrolysis parameters (acid type, acid concentration, reaction time, and temperature) on the properties of nanocellulose (NC) extracted from almond shells were investigated.
Mohammed Alhaji MOHAMMED   +4 more
doaj   +1 more source

Thermal Degradation and Organic Chlorine Removal from Mixed Plastic Wastes

open access: yesEnergies, 2022
Plastic waste accumulation has been growing due to the increase in plastic generation and the lack of infrastructure for recycling. One of the approaches is to treat the mixed plastic waste (MPW) through thermal processes to produce feedstocks for other ...
Zhuo Xu   +3 more
doaj   +1 more source

Physico-mechanical, Chemical Composition and Thermal Properties of Cellulose Fiber from Hibiscus vitifolius Plant Stalk for Polymer Composites

open access: yesJournal of Natural Fibers, 2022
In the present work, physico-mechanical, chemical composition, and thermal properties of cellulosic fiber extracted from the stem of Hibiscus vitifolius plant have been investigated. The wide characterization was conducted on the Hibiscus vitifolius (HV)
S. Manivel   +3 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

Thermal Degradation on Already Oxidatively Degraded Solutions

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   +2 more sources

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   +1 more source

Inverse effect in simultaneous thermal and radiation aging of EVA insulation

open access: yeseXPRESS Polymer Letters, 2015
Poly(ethylene-co-vinyl acetate) (EVA) insulation of the cable applied in nuclear power plants was accelerated aged by gamma-rays at two various temperatures, namely 55 and 85°C.
G. Przybytniak   +6 more
doaj   +1 more source

Characterization of the commercial hyperbranched polyesters [PDF]

open access: yesHemijska Industrija, 2010
In this paper, properties of the commercially available Boltorn® hydroxy-functional aliphatic hyperbranched polyesters of the second, third and fourth pseudo generation, were investigated. Beside that, samples of the third and fourth pseudo generation
Džunuzović Jasna   +2 more
doaj   +1 more source

Utilization of temperature kinetics as a method to predict treatment intensity and corresponding treated wood quality : durability and mechanical properties of thermally modified wood [PDF]

open access: yes, 2014
Wood heat treatment is an attractive alternative to improve decay resistance of wood species with low natural durability. However, this improvement of durability is realized at the expense of the mechanical resistance.
GERARDIN, Phillipe   +25 more
core   +1 more source

Thermal Degradation of Bioactive Compounds during Drying Process of Horticultural and Agronomic Products: A Comprehensive Overview

open access: yesAgronomy, 2023
Over the last few decades, many researchers have investigated in detail the characteristics of bioactive compounds such as polyphenols, vitamins, flavonoids, and glycosides, and volatile compounds in fruits, vegetables and medicinal and aromatic plants ...
Ramadan ElGamal   +5 more
doaj   +1 more source

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