Comparison of stabilization by Vitamin E and 2,6-di-tert-butylphenols during polyethylene radio-thermal-oxidation
Article dans une revue avec comité de lecture
Auteur
RICHAUD, EmmanuelRésumé
This paper reports a compilation of data for PE+Vitamin E and 2,6-di-tert-butylphenols oxidation in radio-thermal ageing. Data unambiguously show that Vitamin E reacts with P° and POO° whereas 2,6-di-tert-butyl phenols only react with POO°. Kinetic parameters of the stabilization reactions for both kinds of antioxidants were tentatively extracted from phenol depletion curves, and discussed regarding the structure of the stabilizer. They were also used for completing an existing kinetic model used for predicting the stabilization by antioxidants. This one permits to compare the efficiency of stabilizer with dose rate or sample thickness.
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Article dans une revue avec comité de lecture;FAYOLLE, Bruno; RICHAUD, Emmanuel (Elsevier, 2011)
This article deals with polypropylene stabilization by hindered 2,6-di-tert-butylphenols. Two aspects are mainly considered: the influence of stabilizer structure, of its concentration and temperature on induction period ...
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Chapitre d'ouvrage scientifique;FAYOLLE, Bruno; RICHAUD, Emmanuel (Woodhead Publishing Series - Elsevier, 2009)
As soon as it appeared on the market, one half century ago, polypropylene (PP) appeared as a promising fibre-forming polymer but with some difficulties in processing due to a lack of control of its viscoelastic properties ...
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Article dans une revue avec comité de lecture; ; ;RICHAUD, Emmanuel (Elsevier, 2014)
Thermal aging of thin films of unstabilized polydicyclopentadiene (pDCPD) at several temperatures ranging from 120 to 30 C was investigated by means of carbonyl build up by FTIR with ammonia derivatization, double bond ...
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Co-oxidation kinetic model for the thermal oxidation of polyethylene-unsaturated substrate systems Article dans une revue avec comité de lecture; ;FAYOLLE, Bruno; RICHAUD, Emmanuel (Elsevier, 2013)
The thermal oxidation of polyethylene (PE) impregnated by the methyl esters of unsaturated fatty acids (UFEs) was studied using chemiluminescence, and infra-red spectrophotometry. It was shown that the presence of UFEs ...
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Article dans une revue avec comité de lectureRICHAUD, Emmanuel (Elsevier, 2013)
Irganox 1010 stabilized PE was monitored by carbonyl build-up and DSC under oxygen. A scheme for PE stabilization by phenols was implemented and its kinetic parameters were calculated from experimental results. This model ...