Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/107

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dc.contributor.authorOliveira, M. J.eng
dc.contributor.authorBernardo, C. A.eng
dc.contributor.authorHemsley, D. A.eng
dc.date.accessioned2003-10-24T16:49:37Z-
dc.date.available2003-10-24T16:49:37Z-
dc.date.issued2002-
dc.identifier.citation"Polymer Engineering and Science". 42:1 (Jan. 2002) 146-151.-
dc.identifier.issn0032-3888por
dc.identifier.urihttp://hdl.handle.net/1822/107-
dc.description.abstractThe effect of a flame retardant on the weldability of polypropylene with two different talc loadings was studied by microscopy and mechanical tests on hot-plate welded injection molded tensile test bars. Welding changes the orientation of the talc particles, which align parallel to the weld interface, and can cause voiding of the material with a consequent decrease of weld strength. Welds of the material containing a flame retardant, which melts and volatizes at the temperatures used in welding, exhibited higher voiding and lower relative weld strengths on welding than the grade without a flame retardant. Voiding may be reduced using lower hot plate temperatures and higher welding displacements, but that results in an increase in the transverse orientation of the talc particles in the weld zone. The relative weld strength, which is affected by the composition of the material, was about 50% for the 20% talc-filled polypropylene and about 45% for the 30% talc-filled grade containing a flame retardant.eng
dc.language.isoengpor
dc.publisherSociety of Plastics Engineers (SPE)-
dc.rightsrestrictedAccesseng
dc.titleThe Effect of Flame Retardants on the Hot-Plate Welding of Talc-Filled Polypropyleneeng
dc.typearticlepor
dc.peerreviewedyeseng
oaire.citationStartPage146por
oaire.citationEndPage151por
oaire.citationIssue1por
oaire.citationVolume42por
dc.identifier.doi10.1002/pen.10935por
dc.subject.wosScience & Technologypor
sdum.journalPolymer Engineering and Sciencepor
Appears in Collections:IPC - Artigos em revistas científicas internacionais com arbitragem

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