6533b86dfe1ef96bd12c9527

RESEARCH PRODUCT

Films of Halloysite Nanotubes Sandwiched between Two Layers of Biopolymer: From the Morphology to the Dielectric, Thermal, Transparency, and Wettability Properties

Stefana MiliotoD. Ines DonatoGiuseppe CavallaroGiuseppe Lazzara

subject

chemistry.chemical_classificationNanocompositeMaterials scienceDielectricPolymerengineering.materialHalloysiteHomogeneous distributionSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsCharacterization (materials science)General EnergyChemical engineeringchemistryengineeringBiopolymerWettingPhysical and Theoretical Chemistrynanotubes biopolymer nanocompositesSettore CHIM/02 - Chimica Fisica

description

This study focused on the preparation and characterization of films based on biopolymers (hydroxypropylcellulose and low methoxyl pectin) and halloysite nanotubes (HNTs). The morphology is strongly dependent on the polymer nature. In particular, we observed a sandwich-like structure composed of two hydroxypropylcellulose layers incorporating the HNTs and a homogeneous distribution of the nanotubes into the low methoxyl pectin matrix. The different mesoscopic properties were invoked to explain the dielectric, thermal, and wettability properties of the corresponding films. Nanocomposites obtained by combining materials from renewable resources and HNTs is a challenging task in view of designing green materials with tunable barrier and delivery properties for specific purposes.

https://doi.org/10.1021/jp207261r