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PLA/SiO2 composites: Influence of the filler modifications on the morphology, crystallization behavior, and mechanical properties
Journal of applied polymer science, 2017-10, Vol.134 (40), p.n/a
Hakim, R. H.
Cailloux, J.
Santana, O. O.
Bou, J.
Sánchez‐Soto, M.
Odent, J.
Raquez, J. M.
Dubois, P.
Carrasco, F.
Maspoch, M. Ll
2017
Details
Autor(en) / Beteiligte
Hakim, R. H.
Cailloux, J.
Santana, O. O.
Bou, J.
Sánchez‐Soto, M.
Odent, J.
Raquez, J. M.
Dubois, P.
Carrasco, F.
Maspoch, M. Ll
Titel
PLA/SiO2 composites: Influence of the filler modifications on the morphology, crystallization behavior, and mechanical properties
Ist Teil von
Journal of applied polymer science, 2017-10, Vol.134 (40), p.n/a
Ort / Verlag
Hoboken: Wiley Subscription Services, Inc
Erscheinungsjahr
2017
Link zum Volltext
Quelle
Wiley Online Library All Journals
Beschreibungen/Notizen
ABSTRACT Films of an architecturally modified poly(lactic acid) (PLAREx) with three different types of fumed silica nanofillers (SiO2) were processed through reactive extrusion‐calendering in a pilot plant. The effects of the SiO2 type on both the dispersion and the crystallization behavior under dynamic and isothermal conditions are investigated using transmission electron microscopy (TEM) and differential scanning calorimetry (DSC). The mechanical properties are assessed by tensile testing. TEM micrographs showed that the improved chemical affinity of both surface‐treated SiO2 toward PLAREx end groups did not improve particle dispersion. DSC results revealed that untreated SiO2 nucleated PLAREx more efficiently than both surface‐modified silicas. The activation energy for the isothermal crystallization process, as determined by an Arrhenius method, suggests that addition of untreated SiO2 enhances the crystallization rate of PLAREx. However, it seems that the tensile behavior remained unchanged whether silicas were added or not. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45367.
Sprache
Englisch
Identifikatoren
ISSN: 0021-8995
eISSN: 1097-4628
DOI: 10.1002/app.45367
Titel-ID: cdi_proquest_journals_1919934439
Format
–
Schlagworte
Activation energy
,
Affinity
,
Alloys
,
biopolymers and renewable polymers
,
Calendering
,
Crystallization
,
Differential scanning calorimetry
,
Dispersion
,
Dispersions
,
Extrusion
,
Heat measurement
,
Mechanical properties
,
nanoparticles
,
nanowires and nanocrystals
,
Photomicrographs
,
Polylactic acid
,
Scanning electron microscopy
,
Silica fume
,
Silicon dioxide
,
Transmission electron microscopy
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