Results 21 to 30 of about 305,392 (312)
Oxidative degradation of polylactide (PLA) and its effects on physical and mechanical properties [PDF]
, 2014 The thermo-oxidative degradation of polylactide (PLA) films was studied between 70 and 150 C. It was shown that the oxidative degradation of PLA leads to a random chain cission responsible for a reduction of the molar mass.
SOLLOGOUB, Cyrille +5 more
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Journal 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
Thermal degradation of polystyrene in air [PDF]
Journal of Polymer Science: Polymer Letters Edition, 1979 The degradation of polystyrene has been a subject of many investigations and a large volume of literature exists on the subject. More recently Cascaval et al.(1) have reported that the weight loss of polystyrene containing end groups derived from azobisisobutyronitrile (AIBN) seems to be different from that of anionically polymerized samples.
Singh, Mahendra, Nandi, US
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Degradation in a Thermal Barrier Coating [PDF]
Advanced 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
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Note on the thermal degradation of polytetrafluoroethylene as a first-order reaction [PDF]
, 1960 Additional experiments on the rates of thermal degradation of polytetra-fluoroethylene in a vacuum confirm an earlier conclusion that a first-order rate law is involved in the degradation ...
Madorsky, S. L.; Straus, S.
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Thermal Degradation on Already Oxidatively Degraded Solutions
Energy 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
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Inverse effect in simultaneous thermal and radiation aging of EVA insulation
eXPRESS 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
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Characterization of the commercial hyperbranched polyesters [PDF]
Hemijska 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
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Thermal Degradation Mechanisms of Polybenzoxazines [PDF]
, 2011 This chapter explains the thermal degradation processes of various Polybenzoxazines and the degradation mechanisms. The structural effects of phenols and amines on the thermal degradation of polybenzoxazines are investigated systematically. The thermal decomposition studies of polybenzoxazines are sometimes difficult because a large number of ...
Hacaloǧlu J., Uyar T., Ishida H.
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Combined kinetic analysis of thermal degradation of polymeric materials under any thermal pathway [PDF]
, 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
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