Search results for " bionanocomposites"

showing 3 items of 3 documents

Bionanocomposite Blown Films: Insights on the Rheological and Mechanical Behavior.

2021

In this work, bionanocomposites based on two different types of biopolymers belonging to the MaterBi® family and containing two kinds of modified nanoclays were compounded in a twin-screw extruder and then subjected to a film blowing process, aiming at obtaining sustainable films potentially suitable for packaging applications. The preliminary characterization of the extruded bionanocomposites allowed establishing some correlations between the obtained morphology and the material rheological and mechanical behavior. More specifically, the morphological analysis showed that, regardless of the type of biopolymeric matrix, a homogeneous nanofiller dispersion was achieved

Materials scienceBiopolymerPolymers and PlasticsPlastics extrusionrheological behaviorbiopolymersengineering.materialmechanical propertiesViscoelasticityArticlelcsh:QD241-441BionanocompositeRheologylcsh:Organic chemistrybiopolymers; bionanocomposites; nanoclays; rheological behavior; mechanical properties; film blowing processComposite materialPolyethylene matrixbionanocompositesGeneral ChemistryCharacterization (materials science)Settore ING-IND/22 - Scienza E Tecnologia Dei Materialifilm blowing processHomogeneousengineeringNanoclayBiopolymerDispersion (chemistry)Film blowing proceMechanical propertienanoclaysPolymers
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Recent Developments and Formulations for Hydrophobic Modification of Carrageenan Bionanocomposites

2023

Versatility of the anionic algal polysaccharide carrageenan has long been discussed and explored, especially for their affinity towards water molecules. While this feature is advantageous in certain applications such as water remediation, wound healing, etc., the usefulness of this biopolymer is extremely limited when it comes to applications such as food packaging. Scientists around the globe are carrying out research works on venturing diverse methods to integrate hydrophobic nature into these polysaccharides without compromising their other functionalities. Considering these foregoing studies, this review is designed to have an in-depth understanding of diverse methods and techniques ado…

Settore ING-IND/22 - Scienza E Tecnologia Dei MaterialiPolymers and Plasticsbioactive agents bionanocomposites carrageenan hydrophobicity nanofillersGeneral ChemistryPolymers
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Structure–Property Relationships in Bionanocomposites for Pipe Extrusion Applications

2021

In this work, bionanocomposites based on different biodegradable polymers and two types of nanofillers, namely a nanosized calcium carbonate and an organomodified nanoclay, were produced through melt extrusion, with the aim to evaluate the possible applications of these materials as a potential alternative to traditional fossil fuel-derived polyolefins, for the production of irrigation pipes. The rheological behavior of the formulated systems was thoroughly evaluated by exploiting different flow regimes, and the obtained results indicated a remarkable effect of the introduced nanofillers on the low-frequency rheological response, especially in nanoclay-based bionanocomposites. Conversely, t…

Work (thermodynamics)Materials scienceBiopolymerPolymers and Plasticsbionanocompositesrheological behaviorStructure propertybiopolymersGeneral Chemistrymechanical propertiesBiodegradable polymerArticleShear ratelcsh:QD241-441Settore ING-IND/22 - Scienza E Tecnologia Dei MaterialiRheologylcsh:Organic chemistrybionanocompositemechanical propertieExtrusionbiopolymers; bionanocomposites; rheological behavior; mechanical properties; processabilityComposite materialDuctilityElastic modulusprocessabilityPolymers
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