Development of polyvinyl alcohol/chitosan bio-nanocomposite films reinforced with cellulose nanocrystals isolated from rice straw

Perumal, Anand Babu; Sellamuthu, Periyar Selvam; Nambiar, Reshma B.; Sadiku, Rotimi

doi:10.1016/j.apsusc.2018.01.022

Cited by 178 publications

(81 citation statements)

References 51 publications

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“…Nagarajan and co‐workers [ 215 ] have incorporated 15 wt% of cellulose extracted from Cocos nucifera var Aurantiaca Peduncle into epoxy composites that presented a great increase over tensile strength, from 32.5 MPa for the polymer to 52.5 MPa for the composites. Moreover, Perumal and co‐workers [ 229 ] have incorporated 5 wt% of cellulose extracted from rice straw into PVA/chitosan composites, which showed an increase from 56.1 MPa for the polymer to 98.1 MPa after the incorporation of waste‐based cellulose.…”

Section: Agriculture Wastesmentioning

confidence: 99%

Eco‐friendly polymer composites: A review of suitable methods for waste management

Cabrera

2021

Polymer Composites

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The amount of residues generated by agriculture, industrial, or urban activities continuously increases and, consequently, demands several methods for their correct management. The incorrect disposal can cause, in specific cases, environmental contamination by heavy metals or leaching as well as promote the spread of diseases as insect proliferation. Commonly, landfilling, incinerating, composting, or energy/fuel generation can control the disposal or reuse of residues. Among the methods for the reuse of wastes, the incorporation of residues as fillers in polymer composites has emerged as a distinct field. Some composites can potentially mitigate leaching compounds or improve mechanical, thermal, and acoustic properties. However, these improvements are a challenge to promote the use of waste fillers. Thus, this study aims to provide a state of view regarding a variety of wastes used as fillers in polymer composites and different methods to reach mechanical reinforcement as well as improve thermal conductivity and acoustic attenuation for future researches.

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Section: Agriculture Wastesmentioning

confidence: 99%

Eco‐friendly polymer composites: A review of suitable methods for waste management

Cabrera

2021

Polymer Composites

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“…Several studies have already reported the reinforcement achieved when CNCs have been incorporated to a polymer matrix [ 24 , 25 ]. For instance, a polyvinyl alcohol (PVA)/chitosan nanocomposite film reinforced with CNCs, prepared using the solvent casting and evaporation technique, showed an increase of 130% in tensile strength [ 26 ]. In other study, a PET/CNCs film improved the water vapor transmission rate of PET from 37 to 10 g·m −2 ·day −1 [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

Development and Characterization of Electrospun Fiber-Based Poly(ethylene-co-vinyl Alcohol) Films of Application Interest as High-Gas-Barrier Interlayers in Food Packaging

et al. 2021

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In the present study, poly(ethylene-co-vinyl alcohol) with 44 mol % ethylene content (EVOH44) was managed to be processed, for the first time, by electrospinning assisted by the coaxial technology of solvent jacket. In addition to this, different suspensions of cellulose nanocrystals (CNCs), with contents ranging from 0.1 to 1.0 wt %, were also electrospun to obtain hybrid bio-/non-bio nanocomposites. The resultant fiber mats were thereafter optimally annealed to promote interfiber coalescence at 145 °C, below the EVOH44 melting point, leading to continuous transparent fiber-based films. The morphological analysis revealed the successful distribution of CNCs into EVOH44 up to contents of 0.5 wt %. The incorporation of CNCs into the ethylene-vinyl alcohol copolymer caused a decrease in the crystallization and melting temperatures (TC and Tm) of about 12 and 7 °C, respectively, and also crystallinity. However, the incorporation of CNCs led to enhanced thermal stability of the copolymer matrix for a nanofiller content of 1.0 wt %. Furthermore, the incorporation of 0.1 and 0.5 wt % CNCs produced increases in the tensile modulus (E) of ca. 38% and 28%, respectively, but also yielded a reduction in the elongation at break and toughness. The oxygen barrier of the hybrid nanocomposite fiber-based films decreased with increasing the CNCs content, but they were seen to remain high barrier, especially in the low relative humidity (RH) regime, i.e., at 20% RH, showing permeability values lower than 0.6 × 10−20 m3·m·m−2·Pa−1·s−1. In general terms, an optimal balance in physical properties was found for the hybrid copolymer composite with a CNC loading of 0.1 wt %. On the overall, the present study demonstrates the potential of annealed electrospun fiber-based high-barrier polymers, with or without CNCs, to develop novel barrier interlayers to be used as food packaging constituents.

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“…PVA is also non-toxic on the human body and can be used to manufacture medicine cachets, drug delivery systems, barrier materials, membranes, and yarn for surgery [24][25]. The use of PVA for environmentally friendly food packaging began widely used due to several advantages of PVA, including strength, transparent, lightweight, non-toxic, heat-stable, antimicrobial, and good elasticity [26][27][28].…”

Section: International Journal Of Engineeringmentioning

confidence: 99%

Experimental Study of Polyvinyl Alcohol Nanocomposite Film Reinforced by Cellulose Nanofibers from Agave Cantala

Yudhanto

Jamasri

Rochardjo

et al. 2021

IJE

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This paper presents an experimental study of addition of cellulose nanofibers (CNF) extracted by the chemical-ultrasonication process from agave cantala leaf plants in the matrix of polyvinyl alcohol (PVA). Combining these materials produce the nanocomposite film with a thickness of 30 μm. The nanocomposite characteristic was investigated by the addition of CNF (0, 2, 5, 8, and 10 wt%) in PVA suspension (3 wt.%). PVA/CNF nanocomposite films were prepared by a casting solution method. The fibrillation of fibers to CNF was analyzed using Scanning Electron Microscopy and Transmission Electron Microscopy. The nanocomposite film functional group's molecular chemical bond and structural analysis were tested using Fourier Transform Infrared and X-ray diffraction. The PVA/CNF nanocomposite film has significant advantages on the ultraviolet barrier, thermal stability tested by Differential Scanning Calorimetry and Thermogravimetric Analyzer, and tensile strength. Overall, the optimal addition of CNF is 8 wt.% in matrix, resulting in the highest crystallinity index (37.5%), the tensile strength and elongation at break was an increase of 79% and 138%, respectively. It has good absorbing ultraviolet rays (82.4%) and high thermal stability (365 o C).

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Development of polyvinyl alcohol/chitosan bio-nanocomposite films reinforced with cellulose nanocrystals isolated from rice straw

Cited by 178 publications

References 51 publications

Eco‐friendly polymer composites: A review of suitable methods for waste management

Eco‐friendly polymer composites: A review of suitable methods for waste management

Development and Characterization of Electrospun Fiber-Based Poly(ethylene-co-vinyl Alcohol) Films of Application Interest as High-Gas-Barrier Interlayers in Food Packaging

Experimental Study of Polyvinyl Alcohol Nanocomposite Film Reinforced by Cellulose Nanofibers from Agave Cantala

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