http://www.cnr.it/ontology/cnr/individuo/prodotto/ID16941
The influence of the compatibilizer on the morphology and thermal properties of polypropylene layered double hydroxide composites (Articolo in rivista)
- Type
- Label
- The influence of the compatibilizer on the morphology and thermal properties of polypropylene layered double hydroxide composites (Articolo in rivista) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1002/pc.20857 (literal)
- Alternative label
Coiai S., Passaglia E., Hermann A., Augier S., Pratelli D., Streller R. C. (2010)
The influence of the compatibilizer on the morphology and thermal properties of polypropylene layered double hydroxide composites
in Polymer composites
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Coiai S., Passaglia E., Hermann A., Augier S., Pratelli D., Streller R. C. (literal)
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- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Centro Italiano Packaging, Via delle Industrie 25/8, 30175 Mestre, Venezia, Italy
2Department of Chemistry and Industrial Chemistry, University of Pisa, Via Risorgimento 35, 56126 Pisa, Italy
3CNR-ICCOM Pisa Section, Department of Chemistry and Industrial Chemistry, University of Pisa,
Via Risorgimento 35, 56126, Pisa, Italy
4Freiburger Materialforschungszentrum und Institut fu¨ r Makromolekulare Chemie Albert-Ludwigs-Universita¨ t
Freiburg, Stefan-Meier-Strasse 21 D-79104 Freiburg, Germany (literal)
- Titolo
- The influence of the compatibilizer on the morphology and thermal properties of polypropylene layered double hydroxide composites (literal)
- Abstract
- Polypropylene (PP)/layered double hydroxide (LDH)
composites were prepared via melt-compounding
using both a carbonate-LDH and an organo-LDH (dodecyl
benzene sulfonate DBS-LDH) in different concentrations.
Transmission electron microscopy and X-ray
diffraction analysis were used to investigate the morphology.
The results showed that only by using DBSLDH
the intercalation of polymer chains and a partial
delamination were obtained. However, the introduction
of maleic anhydride-grafted polypropylene (PP-g-MAH),
as coupling agent, favored the aggregation of the particles
generating localized domains of aggregates. The
thermo-gravimetric analysis showed that PP/DBS-LDH
composites have a higher thermal stability than the
pure matrix. Differential scanning calorimetry evidenced
that both LDH and DBS-LDH particles acted as
nucleating agents increasing the crystallization temperature,
even if, in the case of LDH the effect was
observed only with the addition of the compatibilizer.
The results collected by dynamic mechanical thermal
analysis, beyond showing a significant increase of the
matrix stiffness by incorporation of DBS-LDH, evidenced
an increase of the PP glass transition temperature
(Tg) indicating a restriction of PP chain segment
mobility due to the strong polymer-particle interactions. (literal)
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