Thermal degradation of polymers at high temperatures
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
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Detecting, characterising and assessing PEEK’s and CF-PEEK’s thermal degradation in rapid high-temperature processing [PDF]
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
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Study of ignition parameters and the thermooxidative degradation of wood in the presence of flame retardants with a bioprotective effect [PDF]
: 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
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Thermal oxidation kinetics of additive free polyamide 6-6 [PDF]
Thermal aging of an additive free PA 6-6 has been elucidated at 90, 100, 120, 140, 150 and 160 C in airventiled ovens by Fourier transform infrared spectrophotometry, viscosimetry in molten state and uniaxial tensile testing.
BEN HASSINE, Mouna +3 more
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Polymer/montmorillonite nanocomposites with improved thermal properties: Part II. Thermal stability of montmorillonite nanocomposites based on different polymeric matrixes. [PDF]
In previous part of this work factors influencing the thermal stability of polymer nanocomposite materials were indicated, such as chemical constitution of organic modifier, filler content, nanocomposites’ structure and the processing- dependent ...
Pielichowski, Krzysztof +3 more
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Analysis of the Aerosol Generated from Tetrahydrocannabinol, Vitamin E Acetate, and Their Mixtures
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
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Thermo-kinetic and spectral studies of niobium(V) complexes with 3-substituted-4-amino-5-mercapto-1, 2, 4-triazole Schiff bases [PDF]
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
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Cooling Water for Electricity Production in Poland: Assessment and New Perspectives
Sustainable development requires a holistic approach to natural resources and ecosystems to avoid their degradation. Cooling water—water used for cooling in industrial or manufacturing processes and then returned at elevated temperature to a local river ...
Mariola Kędra
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Thermal degradation of polystyrene in air [PDF]
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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Oxidative degradation of polylactide (PLA) and its effects on physical and mechanical properties [PDF]
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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