Reaction model describing antioxidant depletion in polyethylene–clay nanocomposites under thermal aging

Ahmad, Iftekhar; Hsuan, Y. G.; Cairncross, Richard A.

doi:10.1016/j.polymdegradstab.2014.09.002

Cited by 9 publications

(2 citation statements)

References 51 publications

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“…Our aim here is to describe the effect of antioxidants using a kinetic model for lifetime prediction for stabilized PDCPD. For that purpose, we will complete the previously established model which is validated for unstabilized thin films of PDCPD [12] by adding reactions describing the stabilization as illustrated for example in [18,25,29,30]. The associated kinetic constants will be assessed from fitting of experimental curves together with respect of their physical sense i.e.…”

Section: Discussionmentioning

confidence: 99%

Thermal oxidation of poly(dicyclopentadiene) - Effect of phenolic and hindered amine stabilizers

Huang

Gac

Richaud

2021

Polymer Degradation and Stability

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The thermal oxidation of stabilized polydicyclopentadiene was deeply studied here for the first time. Three kinds of antioxidants (phenolic antioxidant BHT, monomeric hindered amine in alkoxylated form Tinuvin 123 and oligomeric hindered amine Chimassorb 2020) were compared at the same concentrations. Tinuvin 123 was observed to me more efficient than Chimassorb 2020 because of the "activated" nature of alkoxyamine in Tinuvin 123. Results were simulated using a completed version of previously established kinetic model for thin PDCPD films in order to be able to make reliable lifetime prediction of stabilized PDCDP.

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Section: Discussionmentioning

confidence: 99%

Thermal oxidation of poly(dicyclopentadiene) - Effect of phenolic and hindered amine stabilizers

Huang

Gac

Richaud

2021

Polymer Degradation and Stability

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“…Specifically, Cu particles and TiO 2 nanoparticles increase the thermal stabilization and mechanical properties of the polymer matrix after thermal aging. On the contrary, it is interesting that some other studies provided the opposite observations in polyethylene-clay nanocomposites and polypropylene/CaCO 3 nanocomposites after thermal aging [ 27 , 28 ]. The clay nanoparticles and unmodified CaCO 3 , as well as the modified CaCO 3 , accelerate the thermal degradation of the polymer matrix, owing to the consumption of antioxidants by these nanoparticles during thermal aging.…”

Section: Introductionmentioning

confidence: 99%

Effect of Nanoparticles on the Morphology, Thermal, and Electrical Properties of Low-Density Polyethylene after Thermal Aging

Wang

Zhang

et al. 2017

Nanomaterials

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This paper investigates the morphology, thermal, and electrical properties of LDPE (low-density polyethylene)-based nanocomposites after thermal aging. The FTIR (Fourier transform infrared spectroscopy) spectra results show that thermo-oxidative reactions occur in neat LDPE and LDPE/SiO2 nanocomposites when the aging time is 35 days and in LDPE/MgO nanocomposites when the aging time is 77 days. Specifically, LDPE/MgO nanocomposites delay the appearance of thermo-oxidative reactions, showing anti-thermal aging ability. Furthermore, nanocomposites present lower onset degradation temperature than neat LDPE, showing better thermal stabilization. With regard to the electrical properties, nanocomposites maintain the ability to suppress space charge accumulation after thermal aging. Additionally, in comparison with SiO2 nanocomposites and neat LDPE, the permittivity of LDPE/MgO nanocomposites changes slightly after thermal aging. It is concluded that LDPE/MgO nanocomposites have better insulation properties than neat LDPE after thermal aging, which may be caused by the interface introduced by the nanoparticles.

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Polyethylene‐based Biocomposites and Bionanocomposites: State‐of‐the‐Art, New Challenges and Opportunities

Lüftl¹,

Visakh

2016

Polyethylene‐Based Biocomposites and Bionanocomposites

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Reaction model describing antioxidant depletion in polyethylene–clay nanocomposites under thermal aging

Cited by 9 publications

References 51 publications

Thermal oxidation of poly(dicyclopentadiene) - Effect of phenolic and hindered amine stabilizers

Thermal oxidation of poly(dicyclopentadiene) - Effect of phenolic and hindered amine stabilizers

Effect of Nanoparticles on the Morphology, Thermal, and Electrical Properties of Low-Density Polyethylene after Thermal Aging

Polyethylene‐based Biocomposites and Bionanocomposites: State‐of‐the‐Art, New Challenges and Opportunities

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