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Comparison of Precipitated Calcium CarbonatePolylactic Acid and HalloysitePolylactic Acid Nanocomposites
Joint Authors
Shi, Xuetao
Siligardi, Cristina
Ori, Guido
Zhang, Guangcheng
Lazzeri, A.
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-02-28
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
PLA nanocomposites with stearate coated precipitated calcium carbonate (PCC) and halloysite natural nanotubes (HNT) were prepared by melt extrusion.
The crystallization behavior, mechanical properties, thermal dynamical mechanical analysis (DMTA), and the morphology of the PCC/PLA, HNT/PLA, and HNT/PCC/PLA composites were discussed.
Compared to halloysite nanotubes, PCC nanoparticles showed a better nucleating effect, which decreased both the glass transition and cold crystallization temperatures.
The tensile performance of PLA composites showed that the addition of inorganic nanofillers increased Young’s modulus but decreased tensile strength.
More interestingly, PLA composites with PCC particles exhibited an effectively increased elongation at break with respect to pure PLA, while HNT/PLA showed a decreased ultimate deformation of composites.
DMTA results indicated that PLA composites had a similar storage modulus at temperatures below the glass transition and the addition of nanofillers into PLA caused T g to shift to lower temperatures by about 3°C.
The morphological analysis of fractures surface of PLA nanocomposites showed good dispersion of nanofillers, formation of microvoids, and larger plastic deformation of the PLA matrix when the PCC particles were added, while a strong aggregation was noticed in composites with HNT nanofillers, which has been attributed to a nonoptimal surface coating.
American Psychological Association (APA)
Shi, Xuetao& Zhang, Guangcheng& Siligardi, Cristina& Ori, Guido& Lazzeri, A.. 2015. Comparison of Precipitated Calcium CarbonatePolylactic Acid and HalloysitePolylactic Acid Nanocomposites. Journal of Nanomaterials،Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1069415
Modern Language Association (MLA)
Shi, Xuetao…[et al.]. Comparison of Precipitated Calcium CarbonatePolylactic Acid and HalloysitePolylactic Acid Nanocomposites. Journal of Nanomaterials No. 2015 (2015), pp.1-11.
https://search.emarefa.net/detail/BIM-1069415
American Medical Association (AMA)
Shi, Xuetao& Zhang, Guangcheng& Siligardi, Cristina& Ori, Guido& Lazzeri, A.. Comparison of Precipitated Calcium CarbonatePolylactic Acid and HalloysitePolylactic Acid Nanocomposites. Journal of Nanomaterials. 2015. Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1069415
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1069415