Crystallization behavior of poly(L-lactic acid)-based ecocomposites prepared with kenaf fiber and rice straw

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dc.contributor.authorDobreva, T.
dc.contributor.authorPerena, J. M.
dc.contributor.authorPérez, E.
dc.contributor.authorBenavente, R.
dc.contributor.authorGarcía, M.
dc.contributor.institutionTecnalia Research & Innovation
dc.date.accessioned2024-07-24T12:03:06Z
dc.date.available2024-07-24T12:03:06Z
dc.date.issued2010-06
dc.description.abstractSeveral composites of poly(L-lactic acid) (PLLA) with natural fibers (kenaf and rice straw) and pigments have been prepared and analyzed. The study of the thermal behavior has shown a rather important nucleation ability of these fillers for the crystallization of the PLLA component in the composites. Thus, the cooling from the melt of pure PLLA at 10°C/min leads to an almost completely amorphous sample, while a high crystallinity (around 60%) is exhibited by the sample PLLA and rice straw (PLLA-RS)-yellow under those conditions. The analysis of the isothermal crystallization from the melt indicates that a maximum rate of crystallization is obtained for all the samples at around 105°C, although the rate is three times faster for samples PLLA and kenaf fiber (PLLA-KF), PLLA-KF-red, and PLLA-RS, in comparison with pure PLLA. The rate is increased by another factor of three for sample PLLA-RS-yellow. The analysis of the melting temperatures and crystallinities as a function of the crystallization temperature shows that there is a break at around 115°C, which seems to be related to the formation of ordered crystals at higher temperatures and disordered ones at lower temperatures. Besides, the natural fibers are environmentally friendly and nonexpensive materials, and the higher crystallization rates of the composites will result in shorter production cycles of end-use articles.en
dc.description.statusPeer reviewed
dc.format.extent11
dc.identifier.citationDobreva , T , Perena , J M , Pérez , E , Benavente , R & García , M 2010 , ' Crystallization behavior of poly(L-lactic acid)-based ecocomposites prepared with kenaf fiber and rice straw ' , Polymer Composites , vol. 31 , no. 6 , pp. 974-984 . https://doi.org/10.1002/pc.20882
dc.identifier.doi10.1002/pc.20882
dc.identifier.issn0272-8397
dc.identifier.urihttps://hdl.handle.net/11556/3316
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=77952967166&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofPolymer Composites
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsCeramics and Composites
dc.subject.keywordsGeneral Chemistry
dc.subject.keywordsPolymers and Plastics
dc.subject.keywordsMaterials Chemistry
dc.titleCrystallization behavior of poly(L-lactic acid)-based ecocomposites prepared with kenaf fiber and rice strawen
dc.typejournal article
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