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https://hdl.handle.net/1822/20068
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Campo DC | Valor | Idioma |
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dc.contributor.author | Neves, A. F. | - |
dc.contributor.author | Salmoria, G. V. | - |
dc.contributor.author | Ahrens, C. H. | - |
dc.contributor.author | Pouzada, A. S. | - |
dc.contributor.author | Silva, M. A. | - |
dc.date.accessioned | 2012-08-24T17:17:14Z | - |
dc.date.available | 2012-08-24T17:17:14Z | - |
dc.date.issued | 2013 | - |
dc.identifier.issn | 0255-5476 | por |
dc.identifier.uri | https://hdl.handle.net/1822/20068 | - |
dc.description.abstract | The concept of hybrid mould combines the conventional techniques of mould manufacturing and Rapid Prototyping and Rapid Tooling, resorting to non-conventional materials for producing moulding blocks, e. g., epoxy resin composites. Composites based on an epoxy system with 15% weight fraction of short steel fibres (SSF) were considered adequate for improving the performance of moulding blocks. The epoxy/short steel fibre composite moulding blocks were produced by vacuum casting in silicone moulds. Polypropylene (PP) was mixed with a commercial PP masterbatch with 50% of nanoclay and injected in a hybrid mould under various processing conditions. These were chosen from a central composite design with 15 experiments. The moulding microstructure was assessed by polarized light microscopy and differential scanning calorimetry. The skin-core morphology was observed and suggested that the low thermal conductivity of the epoxy composite produces a thinner skin when compared to all-steel moulds. The nanoclay concentration was the variable with the most significant effect on skin thickness and crystallinity. The addition of 1 wt% nanoclay under certain processing conditions favours the formation of β-form spherulites and the increase of crystallinity. | por |
dc.language.iso | eng | por |
dc.publisher | Trans Tech Publications Ltd | por |
dc.rights | restrictedAccess | por |
dc.subject | Polypropylene | por |
dc.subject | Nanoclay | por |
dc.subject | Morphology | por |
dc.subject | Hybrid moulds | por |
dc.title | Assessment of injection moulded parts of PP/nanoclay produced with hybrid moulds | por |
dc.type | conferencePaper | - |
dc.peerreviewed | yes | por |
sdum.publicationstatus | published | por |
oaire.citationStartPage | 963 | por |
oaire.citationEndPage | 968 | por |
oaire.citationTitle | Materials Science Forum | por |
oaire.citationVolume | 730-732 | por |
dc.identifier.doi | 10.4028/www.scientific.net/MSF.730-732.963 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Materials Science Forum | por |
sdum.conferencePublication | ADVANCED MATERIALS FORUM VI, PTS 1 AND 2 | por |
Aparece nas coleções: | IPC - Artigos em revistas científicas internacionais com arbitragem |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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MSF.730-732.963.pdf Acesso restrito! | Documento principal | 1,13 MB | Adobe PDF | Ver/Abrir |