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Article: Pimelic Acid-Based Nucleating Agents for Hexagonal Crystalline Polypropylene

TitlePimelic Acid-Based Nucleating Agents for Hexagonal Crystalline Polypropylene
Authors
Li, JXCheung, WL
Issue Date1997
Citation
Journal Of Vinyl And Additive Technology, 1997, v. 3 n. 2, p. 151-156 How to Cite?
AbstractIsotactic polypropylene (PP) resin was doped with pimelic acid, sodium pimelate, and calcium pimelate to stimulate the growth of hexagonal crystalline polypropylene (β-PP). The doped resin was crystallized in a differential scanning calorimeter (DSC) and during compression molding and injection molding. The effect of the additives on the formation of β-PP was examined using DSC and wide angle X-ray scattering (WAXS). Pimelic acid alone was found ineffective while the pimelates induced 64% to 90% of β-growth depending on the nucleating agent system and crystallization condition. In particular, the pimelic acid/calcium stearate system produced a more consistent and higher yield of β-PP. This was attributed to finer particle size and better dispersion of the nucleating agent.
Persistent Identifierhttp://hdl.handle.net/10722/156298
ISSN
0193-7197
References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorLi, JXen_US
dc.contributor.authorCheung, WLen_US
dc.date.accessioned2012-08-08T08:41:52Z-
dc.date.available2012-08-08T08:41:52Z-
dc.date.issued1997en_US
dc.identifier.citationJournal Of Vinyl And Additive Technology, 1997, v. 3 n. 2, p. 151-156en_US
dc.identifier.issn0193-7197en_US
dc.identifier.urihttp://hdl.handle.net/10722/156298-
dc.description.abstractIsotactic polypropylene (PP) resin was doped with pimelic acid, sodium pimelate, and calcium pimelate to stimulate the growth of hexagonal crystalline polypropylene (β-PP). The doped resin was crystallized in a differential scanning calorimeter (DSC) and during compression molding and injection molding. The effect of the additives on the formation of β-PP was examined using DSC and wide angle X-ray scattering (WAXS). Pimelic acid alone was found ineffective while the pimelates induced 64% to 90% of β-growth depending on the nucleating agent system and crystallization condition. In particular, the pimelic acid/calcium stearate system produced a more consistent and higher yield of β-PP. This was attributed to finer particle size and better dispersion of the nucleating agent.en_US
dc.languageengen_US
dc.relation.ispartofJournal of Vinyl and Additive Technologyen_US
dc.titlePimelic Acid-Based Nucleating Agents for Hexagonal Crystalline Polypropyleneen_US
dc.typeArticleen_US
dc.identifier.emailCheung, WL:wlcheung@hkucc.hku.hken_US
dc.identifier.authorityCheung, WL=rp00103en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0001179944en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0001179944&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume3en_US
dc.identifier.issue2en_US
dc.identifier.spage151en_US
dc.identifier.epage156en_US
dc.identifier.scopusauthoridLi, JX=7410061004en_US
dc.identifier.scopusauthoridCheung, WL=7202743084en_US
dc.identifier.issnl0193-7197-

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