Mechanical, morphological and thermal properties of chitosan filled polypropylene composites: The effect of binary modifying agents

Amri, Faisal; Husseinsyah, Salmah; Kamarudin, Hussin

doi:10.1016/j.compositesa.2012.10.014

Cited by 49 publications

(23 citation statements)

References 27 publications

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“…The irregular shape of corn cob filler with a low aspect ratio led to poor adhesion between CC filler and CS matrix when stress was applied, resulting in a decrease of tensile strength. Similar observations have been reported by many researchers Amri et al 2013). The tensile fracture surface of neat CS showed a homogeneous surface and matrix tearing (Fig.…”

Section: Tensile Propertiessupporting

confidence: 78%

Chitosan/Corn Cob Biocomposite Films by Cross-linking with Glutaraldehyde

2013

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Corn cob (CC) was used as a filler in chitosan (CS) biopolymer films. The effect of glutaraldehyde (GLA) as a crosslinking agent was studied in an effort to improve the properties of CS/CC biocomposite films prepared via solvent casting. The tensile strength and elongation at break values decreased, but the modulus of elasticity increased with CC content. However, the tensile properties of CS/CC biocomposite films improved when modified with GLA. The Fourier transform infrared (FTIR) results indicated the presence of imine bonds (C=N) and ethylenic groups due to the cross-linking reaction between CS and GLA. The thermal stability of CS/CC biocomposite films reduced with increasing CC content. The modification of CS/CC with GLA enhanced the thermal stability of the biocomposite films. Moreover, the wettability and adhesion of the CC-CS system were enhanced by modification with GLA, as demonstrated by a morphological study. The crosslinking agent glutaraldehyde positively affected the tensile strength, modulus of elasticity, and thermal stability of the biocomposite films.

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Section: Tensile Propertiessupporting

confidence: 78%

Chitosan/Corn Cob Biocomposite Films by Cross-linking with Glutaraldehyde

2013

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“…The preparation of mixtures of non-bio-based polymer as PE and bio-based polymer as chitosan, represent a simple way to combine their best properties, in order to obtain materials with good morphological, thermal, and mechanical properties, and with a shorter degradation time when compared to non-bio-based polymers. This alternative could contribute to minimize environmental pollution, and, whereas chitosan has strong antimicrobial and antifungal activities, as reported by several researchers, the conduction of this study may enable the extension of PE applications for packaging material [ 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 86%

HDPE/Chitosan Blends Modified with Organobentonite Synthesized with Quaternary Ammonium Salt Impregnated Chitosan

et al. 2018

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In this study, blends based on a high density polyethylene (HDPE) and chitosan (CS) were successfully prepared by melt processing, in a laboratory internal mixer. The CS biopolymer content effect (up to maximum of 40%), and, the addition of bentonite clay modified with quaternary ammonium salt (CTAB) impregnated chitosan as a compatibilizing agent, on the properties of the blends was analyzed by Fourier transform-infrared spectroscopy (FT-IR), wide angle X-ray diffraction (WAXD), differential scanning calorimetry (DSC), thermogravimetric analyses (TG), tensile strength, and scanning electron microscopy (SEM). The use of clay modified with CTAB impregnated chitosan, employing a method developed here, improved the compatibility of HDPE with chitosan, and therefore the thermal and some of the mechanical properties were enhanced, making HDPE/chitosan blends suitable candidates for food packaging. It was possible to obtain products of synthetic polymer, HDPE, with natural polymer, chitosan, using a method very used industrially, with acceptable and more friendly properties to the environment, when compared to conventional synthetic polymers. In addition, due to the possibility of impregnated chitosan with quaternary ammonium salt exhibit higher antibacterial activity than neat chitosan, the HDPE/chitosan/organobentonite blends may be potentially applied in food containers to favor the preservation of food for a longer time in comparison to conventional materials.

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“…However, CS films are brittle with poor mechanical properties . Therefore, the synthesis of biocomposite materials prepared from the combination of a synthetic polymer with high mechanical and chemical stability and low‐cost production, such as polypropylene (PP), and a biopolymer like chitosan (CS), has been extensively used. In addition, as PP requires appropriate properties to be used for a specific application, for example, a given functionality, the portion that comes in contact with the environment must be modified .…”

Section: Introductionmentioning

confidence: 99%

Original antifouling strategy: Polypropylene films modified with chitosan‐coated silver nanoparticles

Mosconi

Stragliotto

Slenk

et al. 2019

J of Applied Polymer Sci

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A new coating strategy of polypropylene (PP) films with silver nanoparticles (AgNPs) is proposed to obtain surfaces with antifouling properties. As a first step, the photograft polymerization is used to produce polyacrylic acid-grafted PP (PAA-grafted PP) films. A green AgNP synthesis is used by thermal reduction of AgNO 3 with amino groups of chitosan (CS), which controls ion diffusion and stabilizes nanoparticles. AgNP/CS complexes are adsorbed on PAA-grafted PP by electrostatic interactions, yielding AgNP/CS-coated PP films. These films show an excellent antimicrobial activity, even for AgNP contents as low as 0.08 wt %, reducing more than 4 log units in the viable Staphylococcus aureus concentration or inducing Escherichia coli death. This trend is consistent with an adequate amount of small AgNP adsorbed in an organized manner within a thin surface layer. Therefore, the antimicrobial activity of this film seems to be more than promising, used as an active surface for a wide range of applications.A suitable combination of a natural and a synthetic polymer improves the properties of the resulting material, which expands its application field. This methodology of synthesis has proved to be appropriate in areas such as biomedical materials, controlled Additional Supporting Information may be found in the online version of this article.

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Mechanical, morphological and thermal properties of chitosan filled polypropylene composites: The effect of binary modifying agents

Cited by 49 publications

References 27 publications

Chitosan/Corn Cob Biocomposite Films by Cross-linking with Glutaraldehyde

Chitosan/Corn Cob Biocomposite Films by Cross-linking with Glutaraldehyde

HDPE/Chitosan Blends Modified with Organobentonite Synthesized with Quaternary Ammonium Salt Impregnated Chitosan

Original antifouling strategy: Polypropylene films modified with chitosan‐coated silver nanoparticles

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