Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/86961
Título: | Interfacial chemistry and morphology of blends of polybutyleneterephthalate and epoxide-containing rubber |
Autor(es): | Van Duin, Martin Martin, Philippe Machado, A. V. Legras, Roger Van Gurp, Marnix |
Palavras-chave: | Blend Graft copolymer Morphology PBT |
Data: | Out-2003 |
Resumo(s): | Of the various ways in which polybutyleneterephthalate (PET) can be toughened, the addition of epoxide-containing rubbers is one of the most effective. The interfacial chemistry (dissolution and fractionation experiments) and morphology (transmission electron microscopy) development in blends of PBT with ethylene-(methyl acrylate)-(glycidyl methacrylate) rubber (E-MA-GMA) has been studied as a function of the mixing time for batch kneaders and of the length along the axis of a co-rotating twin-screw extruder. First, a physics-controlled mixing regime occurs with a very fast dispersion of the rubber to the μm level. Subsequently, a chemistry-controlled regime occurs, where the interfacial area is covered with PBT/E-MA-GMA graft copolymer, which prevents coalescence and, thus, results in further refinement of the morphology to sub-μm level. The occurrence of cross-linking of the rubber phase in some cases limits optimum blend dispersion. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/86961 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | IPC - Resumos alargados em actas de encontros científicos internacionais com arbitragem |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Interfacial_chemistry-Antec2003Mar.pdf | 1,25 MB | Adobe PDF | Ver/Abrir |