E3S Web Conf.
Volume 273, 2021XIV International Scientific and Practical Conference “State and Prospects for the Development of Agribusiness - INTERAGROMASH 2021”
|Number of page(s)||8|
|Published online||22 June 2021|
Synergism of the action of some stabilisers against the destruction of polymer materials
1 Don State Technical University, Gagarin Square, 1, Rostov-on-Don, 344000, Russia
2 Platov South-Russian State Polytechnic University (NPI), 132, str. Prosveshcheniya, 346428, Novocherkassk, Russia
* Corresponding author: firstname.lastname@example.org
The process of thermal-oxidative degradation of polymer materials has been studied on the example of polyethylene in the presence of quinones and / or nitroxyl radicals. The synergistic effect of the positive action of a mixture of stabilisers from a number of quinones and nitroxyl radicals on the destructive process of polyethylene has been established. It has been shown that the rate of degradation has significantly slowed down when an equimolecular mixture of 4-acetylamino-2,2,6,6-tetramethylhexahydropyridine-1-oxyl and 2,6-di-tert-amyl-1,4-cyclohexadienone inhibitors has been introduced into the polymer. The kinetics of the initiated thermo-destructive process of polyethylene oxidation in the presence and absence of stabilisers has been studied. A mechanism of joint action of stabilisers based on their interaction with radicals and the breakage of radical chains, as well as a mechanism for the regeneration of stabilisers, has been proposed.
© The Authors, published by EDP Sciences, 2021
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