Morphological, Thermal, and Mechanical Properties of Starch Biocomposite Films Reinforced by Cellulose Nanocrystals From Rice Husks

Johar, Nurain; Ahmad, Ishak

doi:10.15376/biores.7.4.5469-5477

Cited by 51 publications

(31 citation statements)

References 20 publications

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“…TS was reduced basically due to the agglomeration of nanofillers in the seaweed matrix, which caused filler-filler interaction instead of fillermatrix interaction (Johar and Ahmad 2012). Therefore, it was believed that the poor filler-matrix interfacial interaction was formed in this case.…”

Section: Mechanical Properties Of Bio-nanocomposite Filmsmentioning

confidence: 91%

Oil Palm Shell Nanofiller in Seaweed-based Composite Film: Mechanical, Physical, and Morphological Properties

et al. 2017

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Composite films that utilize seaweed as a matrix and oil palm shell (OPS) nanoparticles as a reinforcing material were developed. The effects of loading OPS nanoparticle (0%, 1%, 5%, 10%, 20%, and 30%) into seaweed films were determined by analyzing the physical, mechanical, and morphological properties of the films. The seaweedbased film incorporated with OPS nanoparticles at a high concentration (20% w/w) achieved the highest tensile strength (44.8 MPa) and Young's Modulus (3.13 GPa). However, the film's hydrophobicity (contact angle = 47.3º) and percentage of elongation at break (2.10%) were reduced. Moreover, it was observed that excessive loading of nanofillers (> 20%) reduced the tensile strength and hydrophilicity of the film. This phenomenon was attributed to the agglomeration of OPS nanoparticles and the formation of large voids on the film surface. Thus, the relative effectiveness of the various tested nanofiller contents in enhancing the mechanical strength of the composite film were found to be ranked in the following order: 20%, 10%, 5%, 30%, and 1%.

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Section: Mechanical Properties Of Bio-nanocomposite Filmsmentioning

confidence: 91%

Oil Palm Shell Nanofiller in Seaweed-based Composite Film: Mechanical, Physical, and Morphological Properties

et al. 2017

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“…The cellulose fibers were isolated according to Johar and Ahamad, with some modifications. The cellulose fibers were dried in an oven with air circulation (400‐6ND; Nova Ética, São Paulo, Brazil) at 50 °C for 24 h and stored in a sealed container.…”

Section: Methodsmentioning

confidence: 99%

“…Research efforts in the area of polymeric materials have focused on the development of biodegradable materials obtained from renewable resources . Among these materials the starches that are the most abundant and the cheapest materials that come from renewable resources stand out.…”

Section: Introductionmentioning

confidence: 99%

Morphological, mechanical, barrier and properties of films based on acetylated starch and cellulose from barley

Halal

Colussi

Biduski

et al. 2016

J. Sci. Food Agric.

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The mechanical, barrier, solubility, and thermal properties are factors which direct the type of the film application in packaging for food products. The films elaborated with acetylated starches of low degree of substitution were not effective in a reduction of the water vapor permeability. The addition of the cellulose fiber in acetylated and native starches films can contribute to the development of more resistant films to be applied in food systems that need to maintain their integrity. © 2016 Society of Chemical Industry.

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“…The addition of CNCs improves the thermomechanical properties and reduces the water sensitivity of starch-based nanocomposites. It has been reported that CNCs derived from rice husk increase the Young's modulus and tensile strength of thermoplastic starch films due to the strong interactions between the starch matrix and the high aspect ratio nanofibers (Abdul Khalil et al 2012;Johar and Ahmad 2012). Khan et al (2012), who investigated CNC-reinforced chitosan-based biodegradable films, found that the tensile strength of the nanocomposite films with 5% (w/w) CNC content was optimum and 26% higher than that of the control chitosan films.…”

Section: Introductionmentioning

confidence: 99%

Biodegradable Composite Films based on κ-carrageenan Reinforced by Cellulose Nanocrystal from Kenaf Fibers

Zarina¹,

Ahmad²

2014

BioResources

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Through alkali treatment, bleaching, and sulfuric acid hydrolysis, cellulose nanocrystals (CNCs) were prepared from kenaf fibers and were used as reinforcement materials in biocomposites based on κ-carrageenan. Biocomposites in the form of films were prepared by solution casting of a mixture of κ-carrageenan, glycerol, and various amounts of CNCs (0 to 8 wt%). Fourier transform infrared spectroscopy (FTIR) revealed that alkali treatment followed by bleaching totally removed lignin and hemicellulose from the kenaf. Morphological analysis of the fibers, cellulose, and κ-carrageenan of biocomposite films were carried out using field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). The effects of filler content on the mechanical and thermal stability of the k-carrageenan biocomposite films were analyzed through tensile strength measurements and thermogravimetric analysis (TGA). At an optimum CNC content of 4%, the κ-carrageenan biocomposite films showed good dispersion, superior mechanical properties, and improved thermal stability.

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Morphological, Thermal, and Mechanical Properties of Starch Biocomposite Films Reinforced by Cellulose Nanocrystals From Rice Husks

Cited by 51 publications

References 20 publications

Oil Palm Shell Nanofiller in Seaweed-based Composite Film: Mechanical, Physical, and Morphological Properties

Oil Palm Shell Nanofiller in Seaweed-based Composite Film: Mechanical, Physical, and Morphological Properties

Morphological, mechanical, barrier and properties of films based on acetylated starch and cellulose from barley

Biodegradable Composite Films based on κ-carrageenan Reinforced by Cellulose Nanocrystal from Kenaf Fibers

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