Effect of nanoclay incorporation method on mechanical and water vapor barrier properties of starch-based films

Müller, Carmen Maria Olivera; Laurindo, João Borges; Yamashita, Fábio

doi:10.1016/j.indcrop.2010.12.021

Cited by 204 publications

(120 citation statements)

References 41 publications

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“…Increasing amounts of kaolin in the film formulation was accompanied by a progressive decrease in the percent moisture content. This finding is likely due to the interaction among plasticizer, biopolymer matrix, and nanokaolin, which reduced the availability of the hydroxyl group to interact with water, consequently resulting to a less hygroscopic matrix (Müller et al 2011). The solubility in water of these films was progressively reduced with increasing kaolin content in the formulation.…”

Section: Water Susceptibilitymentioning

confidence: 99%

Preparation and characterization of bionanocomposite films reinforced with nano kaolin

et al. 2015

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Effects of nano-kaolin incorporation into semolina films on the physical, mechanical, thermal, barrier and antimicrobial properties of the resulting bio-nanocomposite films were investigated. The properties included crystal structure (by X-ray diffraction), mechanical resistance, color, Fourier transform infrared spectra, decomposition temperature, water-vapor permeability (WVP), oxygen permeability (OP), and antimicrobial activity against Staphylococcus aureus and Escherichia coli. Kaolin was incorporated into biofilms at various amounts (1, 2, 3, 4, and 5 %, w/w total solid). All films were plasticized with 50 % (w/w total solid) combination of sorbitol/glycerol at 3:1 ratio. The incorporation of nanokaolin into semolina films decreased OP and WVP. The moisture content and water solubility of the films were found to decrease by nanokaolin reinforcement, and mechanical properties of films were improved by increasing nanokaolin concentration. Tensile strength and Young's modulus increased from 3.41 to 5.44 MPa and from 63.12 to 136.18, respectively, and elongation-at-break decreased. The films did not exhibit UV absorption. In conclusion, nanokaolin incorporation enhanced the barrier and mechanical properties of semolina films, indicating the potential application of these bio-nanocomposites in food-product packaging.

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Section: Water Susceptibilitymentioning

confidence: 99%

Preparation and characterization of bionanocomposite films reinforced with nano kaolin

et al. 2015

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“…However, further increases in clay result in deterioration in properties that are most likely due to poorer clay dispersion and lower polymer crystallinity. Muller et al (2011) studied the effect of nanoclay on mechanical and water vapor barrier properties of starch films. The nanocomposites exhibited a remarkable improvement in mechanical properties and reduced the water vapor permeability when compared with pure starch films.…”

Section: Reinforcement With Nanoparticlesmentioning

confidence: 99%

Rice Starch-Based Biodegradable Films: Properties Enhancement

Wittaya¹

2012

Structure and Function of Food Engineering

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“…Tensile strength and impact toughness increased 17.4% and 184% respectively [13]. Other improved physical and engineering properties include fire retardancy [14,15], barrier resistance [16] and ion conductivity [12]. Another advantage of clay nanocomposites is that the optical properties of the polymer are not considerably affected.…”

Section: Introductionmentioning

confidence: 99%

Effect of Short Term Water Exposure on the Mechanical Properties of Halloysite Nanotubes-Multi Layer Graphene Reinforced Polyester Nanocomposites

Saharudin¹,

Atif²

2017

Preprint

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Abstract:The influence of short term water absorption on the mechanical properties of halloysite nanotubes-multi layer graphene reinforced polyester hybrid nanocomposites has been investigated. The addition of nano-fillers significantly increased the flexural strength; tensile strength and impact strength in dry and wet conditions. After short term water exposure; the maximum microhardness; tensile; flexural and impact toughness values were observed at 0.1 wt% MLG. The microhardness increased up to 50.3%; tensile strength increased up to 40% and flexural strength increased up to 44%. Compared to dry samples; the fracture toughness and surface roughness of all types of produced nanocomposites were increased that may be attributed to plasticization effect. Scanning electron microscopy revealed that the main failure mechanism is caused by the weakening of nanofiller-matrix interface induced by water absorption. It was further observed that synergistic effects were not effective at concentration of 0.1 wt% to produce considerable improvement in mechanical properties of produced hybrid nanocomposites.

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Effect of nanoclay incorporation method on mechanical and water vapor barrier properties of starch-based films

Cited by 204 publications

References 41 publications

Preparation and characterization of bionanocomposite films reinforced with nano kaolin

Preparation and characterization of bionanocomposite films reinforced with nano kaolin

Rice Starch-Based Biodegradable Films: Properties Enhancement

Effect of Short Term Water Exposure on the Mechanical Properties of Halloysite Nanotubes-Multi Layer Graphene Reinforced Polyester Nanocomposites

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