Sustainable recycling of butyl rubbers
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Polimeros Ciencia e Tecnologia
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This investigation presents a deep examination on the behavior of radiation effects on pristine (IIR) and halogenated
butyl (IIR-Cl, IIR-Br) rubbers. The retrieving these materials is appropriately achieved by the radiolysis fragmentation
of main chains that initiates the structural modifications based on the radiation susceptibilities of studied rubbers. The
γ-irradiation process causes oxidation under air atmosphere and the effects are revealed by chemiluminescence and
FTIR characterizations. The radiolysis on butyl rubbers is conducted onto a specific fragmentation, which allows the
two antagonistic processes: oxidation and recombination. During the γ-radiolysis in rubbers is revealed the influence
of the electronegativity possesed by the halogen atoms presented in polymer structures, determining the values of
activation energy for their oxidative degradation. The γ-processing suggests an ecological procedure for an appropriate
preparation of blends or for the recycling as composite products. The calculated activation energies place the polymers
in the following stability order of IIR
Como referenciar
ZAHARESCU, TRAIAN; LUGAO, ADEMAR B.; ZEN, HELOISA A.; MIREA, RADU; BUNCIANU, DOREL. Sustainable recycling of butyl rubbers: an insight into the radiation processing. Polimeros Ciencia e Tecnologia, v. 35, n. 3, p. 1-8, 2025. DOI: 10.1590/0104-1428.20240124. Disponível em: https://repositorio.ipen.br/handle/123456789/49327. Acesso em: 20 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.