Biopolymer Composites Based on Lignin and Microcrystalline Chitosan

Kopania, Ewa; Wiśniewska‐Wrona, Maria

doi:10.15259/pcacd.21.13

Cited by 1 publication

(4 citation statements)

References 6 publications

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“…Chitosan-based films and coatings have been recently intensively studied [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. Most of the research has been focused on evaluating different preparation conditions (including the processing method) and incorporation of additives to improve the properties of composites.…”

Section: Introductionmentioning

confidence: 99%

“…Most of the research has been focused on evaluating different preparation conditions (including the processing method) and incorporation of additives to improve the properties of composites. Currently, there are two main methods to produce films from chitosan: a wet method based on solvent casting, and a dry method [ 6 ], with the preference for wet method due to its unquestionable simplicity [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ]. The obtained materials, however, are fragile at small thickness.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, blends of chitosan/PVA, chitosan/starch, or chitosan/lignin have been greatly studied as promising materials for industrial applications [ 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ]. Polymer blends of chitosan and PVA exhibited good thermal stability, unique morphology and reduced solubility in acid solution.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the addition of keratin fibers increased the glass temperature and the storage modulus of the obtained films [ 11 ]. The other type of biocomposite film that has recently been a subject of investigations is chitosan/lignin [ 12 , 13 , 14 , 15 ]. The FTIR data confirmed the formation of hydrogen bonding between the hydroxyl and carbonyl groups in chitosan with carbonyl, hydroxyl, and ether groups in lignin [ 12 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

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Environmentally Friendly Melt-Processed Chitosan/Starch Composites Modified with PVA and Lignin

et al. 2021

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Chitosan/starch-based composites were prepared by thermomechanical processing as an alternative to the traditional solution method, with the aim of fabricating environmentally friendly materials on a larger scale. Different contents and types of lignin and poly(vinyl alcohol), PVA were incorporated into chitosan/starch compositions to improve their mechanical properties. It was demonstrated that the presence of both lignin and PVA increases the values of tensile strength and elongation at break of the composites. Moreover, it was observed that by the selection of a type of lignin and PVA, it was possible to tailor the internal microstructure of the samples. As observed in scanning electron microscope (SEM) micrographs, the introduction of lignin and PVA resulted in the formation of a smooth surface and homogeneous samples.

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