Compatibilization of polyamide 6,6/linear low-density polyethylene blend by electron irradiation
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2002
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Revista Brasileira de Pesquisa e Desenvolvimento
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Resumo
Polymer blending is a growing scientific and commercial development activity. In most
cases, polymeric blends are formed by thermodynamically immiscible components. Such blends
require the use of compatibiliezers that, often, are copolymers, graft copolymers or any means that
improve the dispersion and adhesion of blend phases. Compatibility of a polymer blend plays an
important role in determining the blend properties for their end use. In this work, the
compatibilization of the polyamide 6,6/low-density polyethylene blend, using electron radiation,
was carried out. Samples for mechanical test, with 75/25 %wt/wt composition were melt mixed in
an extruder and then injection-molded. These samples were electron irradiated to doses of 50, 100,
150, and 200kGy. The tensile measurements show that the strength at break increases with an
increase of the radiation doses. On the other hand, the elongation at break shows a rapid standing
decrease as a function ofthe doses. Comparing these results with those obtained with no irradiated
samples we have found an improvement ofthe mechanical properties ofthe PA6,6/LLDPE blend.
We consider that the carboxylic groups produced in the polyethylene chains, during irradiation,
react with the end amine end groups of the polyamide, acting as an interfacial bonding stabilizing
this blend system.
Como referenciar
SEGURA PINO, E.; COLOMBO, M.A. Compatibilization of polyamide 6,6/linear low-density polyethylene blend by electron irradiation. Revista Brasileira de Pesquisa e Desenvolvimento, v. 4, n. 3, p. 1610-1612, 2002. Parte 2. Disponível em: http://repositorio.ipen.br/handle/123456789/5921. Acesso em: 14 Mar 2025.
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.