SYNERGISTIC EFFECT OF SEPIOLITE AND CLOISITE 30B ON THE PROPERTIES OF POLY(3-HYDROXYBUTYRATE-CO-3-HYDROXYVALERATE)/POLYLACTIDE BLENDS

the 3rd African Conference on Research in Chemistry Education

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Title SYNERGISTIC EFFECT OF SEPIOLITE AND CLOISITE 30B ON THE PROPERTIES OF POLY(3-HYDROXYBUTYRATE-CO-3-HYDROXYVALERATE)/POLYLACTIDE BLENDS
 
Creator Lynda Zaidi; Université A/Mira de Bejaia-Algérie-
 
Subject

 
Description Abstract Polymer blends have been explored as an alternative way of acquiring novel materials with desired properties. Indeed, due to their biodegradability and biocompatibility through non toxic intermediates, poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and polylactide (PLA) are considered as ideal candidates to replace non biodegradable polymeric materials for packaging applications. However, PHBV/PLA blends tend to phase separation due to their immiscibility, resulting into poor material properties. To overcome this constraint, the addition of a compatibilizer into the system is therefore necessary to improve the interfacial properties of the blend components. On the other hand, nanocomposites based on polymer blends have recently received a special attention because they offer more possibilities to tune the material properties. In this topic, the literature data was devoted to the effects of clay particles on miscibility/compatibility as well as the microstructure of polymer blends. The most important features that can affect the role and performance of the nanoparticles in the polymer blends are their localization, interactions with polymer components and dispersion state in the polymer matrix.   In this paper, we report the coupled effects of two types of clays, i.e. Sepiolite and Cloisite 30B (3 wt%),on morphology , mechanical and rheological properties of PHBV/PLA : 50/50 (w/w) blend.   The study showed through scanning electron microscopic analysis that the morphology of PHBV/PLA blend is relatively regular and homogeneous in the presence of Cloisite 30B and Sepiolite compared to the virgin blend, thus suggesting a change in the miscibility between the two base polymers. Furthermore, the nanocomposite samples exhibit improved tensile properties in terms of Young’s modulus, comparatively to the virgin one. The rheological study reveals a significant increase of the complex viscosity and storage and loss modulus leading to the conclusion that the combination of both Sepiolite and Cloisite 30B results in a synergistic effect in PHBV/PLA blend.   References [1] Zembouai I., Kaci M., Bruzaud S., Benhamida A., Corre Y.-M., Grohens Y. (2013). Polymer Testing, 32, 5, 842. [2] Zaidi L., Bruzaud S., Bourmaud A., Mederic P., Kaci M., Grohens Y. (2010). J Appl Polym Sci, 116, 1357. [3] Zembouai I., Bruzaud S., Kaci M., Benhamida A., Corre Y.M., Grohens Y., LopezCuesta J.M. (2014). J Polym Environ, 22, 39.
 
Publisher ACRICE2017
ACRICE 2017
 
Contributor
 
Date 2017-09-28 07:57:35
 
Type Peer-reviewed Paper
 
Identifier http://www.univ-setif.dz/OCS/FT/ACRICE/paper/view/214
 
Source ACRICE2017; The third african conference on research in chemistry education
 
Language en
 
Relation http://www.univ-setif.dz/OCS/FT/ACRICE/paper/download/214/339
 
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