Thermal and mechanical properties of chitosan nanocomposites with cellulose modified in ionic liquids

Grząbka-Zasadzińska, Aleksandra; Amietszajew, Tazdin; Borysiak, Sławomir

doi:10.1007/s10973-017-6295-3

Cited by 73 publications

(28 citation statements)

References 65 publications

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“…MPa [33]. The TS values of films were comparable to those of plastic-based films, such as films based on LDPE (8-10 MPa), HDPE (19-31 MPa), EVOH (6-19 MPa), PCL (4 MPa), PS (31-49 MPa), PLA (45 MPa), PVC (42)(43)(44)(45)(46)(47)(48)(49)(50)(51)(52)(53)(54)(55), and PP (27-98 MPa) [50]. Li et al [69] found that the TS of the composite films increased from 85 to 120 MPa, with an increase of CNC content from 0 to 15 wt.%.…”

Section: Mechanical Propertiesmentioning

confidence: 68%

“…T maxI (first stage) occurred at the range of 40-100 • C, which corresponds to a weight loss of ca. 14% and is attributed to the evaporation of residual acetic acid [52] and physical trapping of water and/or weakly hydrogen-bonded to CS molecules. The second stage (T maxII ) of weight loss at below 200 • C could be assigned to the initial degradation of the polymer and/or release of atypical, strongly hydrogen-bonded water.…”

Section: Equilibrium Moisture Content (Emc)mentioning

confidence: 99%

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Cellulose Nanocrystal Reinforced Chitosan Based UV Barrier Composite Films for Sustainable Packaging

et al. 2020

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In this study, green composite films based on cellulose nanocrystal/chitosan (CNC/CS) were fabricated by solution casting. FTIR, XRD, SEM, and TEM characterizations were conducted to determine the structure and morphology of the prepared films. The addition of only 4 wt.% CNC in the CS film improved the tensile strength and Young’s modulus by up to 39% and 78%, respectively. Depending on CNC content, the moisture absorption decreased by 34.1–24.2% and the water solubility decreased by 35.7–26.5% for the composite films compared with neat CS film. The water vapor permeation decreased from 3.83 × 10−11 to 2.41 × 10−11 gm−1 s−1Pa−1 in the CS-based films loaded with (0–8 wt.%) CNC. The water and UV barrier properties of the composite films showed better performance than those of neat CS film. Results suggested that CNC/CS nanocomposite films can be used as a sustainable packaging material in the food industry.

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Section: Mechanical Propertiesmentioning

confidence: 68%

Section: Equilibrium Moisture Content (Emc)mentioning

confidence: 99%

Cellulose Nanocrystal Reinforced Chitosan Based UV Barrier Composite Films for Sustainable Packaging

et al. 2020

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“…This includes saccharide ring dehydration, depolymerization, and decomposition of deacetylated and acetylated chitosan units. 54 , 55 …”

Section: Resultsmentioning

confidence: 99%

Sustainable Superheated Water Hydrolysis of Black Soldier Fly Exuviae for Chitin Extraction and Use of the Obtained Chitosan in the Textile Field

2021

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Interest in insects as waste biomass bioconverters and their use as valuable resources for fat, proteins, and chitin has increased considerably in the last few years. In this study, proteins were extracted from defatted black soldier fly (BSF) ( Hermetia illucens ) exuviae by green hydrolysis using superheated water at 150 °C for 20 h, and the remaining chitin was deacetylated into chitosan and used as a finishing agent for polyester fabrics. A total amount of 7% fat, 40% proteins, and 20% chitin was obtained from BSF exuviae. Different hydrolysis times ranging from 1 to 20 h were tried until the complete purification of chitin. The purity of chitin and the obtained chitosan after deacetylation was assessed by Fourier transform infrared spectroscopy and thermal analysis. A preliminary study was successfully carried out to use the obtained chitosan as a finishing agent for polyester pretreated fabrics using citric acid as a grafting agent. The presence of chitosan on the fabric was verified by scanning electron microscopy and by dyeing of the pretreated polyester fabric using a reactive dye with sulfonated groups that are able to be absorbed by electrostatic attraction because of the created cationic nature of the fiber surface treated by chitosan.

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“…ChNPs can be synthesized using either “bottom-up” or “top-down” approaches and/or combination of both procedures. Moreover, Ch-derivatives and ChNP composites are prepared to enhance the performance of the pristine Ch, such as reducing agglomeration and improving overall stability [28]. For instance, a supplement of DNA and RNA into mammalian cells by gene delivery can be used for treating diseases either to express new proteins or to prevent the expression of existing proteins [29].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Bioapplications, and Toxicity Evaluation of Chitosan-Based Nanoparticles

Rizeq

Younes

Rasool

et al. 2019

IJMS

208

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The development of advanced nanomaterials and technologies is essential in biomedical engineering to improve the quality of life. Chitosan-based nanomaterials are on the forefront and attract wide interest due to their versatile physicochemical characteristics such as biodegradability, biocompatibility, and non-toxicity, which play a promising role in biological applications. Chitosan and its derivatives are employed in several applications including pharmaceuticals and biomedical engineering. This article presents a comprehensive overview of recent advances in chitosan derivatives and nanoparticle synthesis, as well as emerging applications in medicine, tissue engineering, drug delivery, gene therapy, and cancer therapy. In addition to the applications, we critically review the main concerns and mitigation strategies related to chitosan bactericidal properties, toxicity/safety using tissue cultures and animal models, and also their potential environmental impact. At the end of this review, we also provide some of future directions and conclusions that are important for expanding the field of biomedical applications of the chitosan nanoparticles.

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Thermal and mechanical properties of chitosan nanocomposites with cellulose modified in ionic liquids

Cited by 73 publications

References 65 publications

Cellulose Nanocrystal Reinforced Chitosan Based UV Barrier Composite Films for Sustainable Packaging

Cellulose Nanocrystal Reinforced Chitosan Based UV Barrier Composite Films for Sustainable Packaging

Sustainable Superheated Water Hydrolysis of Black Soldier Fly Exuviae for Chitin Extraction and Use of the Obtained Chitosan in the Textile Field

Synthesis, Bioapplications, and Toxicity Evaluation of Chitosan-Based Nanoparticles

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