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Article Dans Une Revue Journal of Composites Science Année : 2023

Extraction and Physicochemical Characterization of an Environmentally Friendly Biopolymer: Chitosan for Composite Matrix Application

Meryiem Derraz
Abdelaziz Elouahli
  • Fonction : Auteur
Chouaib Ennawaoui
Abdelkader Rjafallah
El Mehdi Laadissi
Hamza Khallok
  • Fonction : Auteur
Zineb Hatim
  • Fonction : Auteur
Abdelowahed Hajjaji
  • Fonction : Auteur

Résumé

Chitosan, which is a derivative of chitin, is particularly popular due to its biodegradable and renewable nature. However, the properties of chitosan can be inconsistent due to the extraction process and its natural origin, which poses a challenge to its use in composite materials as a matrix. The properties of chitosan can be tuned by controlling the degree of deacetylation (the extent to which acetyl groups are removed from chitin to form chitosan) and molecular weight. This paper presents a detailed study on the extraction and characterization of chitosan from shrimp shells. The structural thermal and mechanical characterization were studied using several techniques: Fourier-transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis and differential scanning calorimetry. The intrinsic viscosity and deacetylation degree were determined using various methods. The results showed an average degree of deacetylation of 77%. The chitosan films exhibited a high tensile strength of 43.9 MPa and an elongation at break of 3.14%. The thermal analysis revealed that the films had a glass transition temperature of 88 °C and a maximum thermal degradation temperature of 320 °C. The findings of this research could contribute to the development of chitosan-based materials with improved properties, leading to its wider adoption in the future for composite matrix application. The simple and efficient method used for the extraction and purification of chitosan from shrimp shells makes it a cost-effective and eco-friendly alternative to synthetic polymers.

Domaines

Chimie

Dates et versions

hal-04342124 , version 1 (13-12-2023)

Identifiants

Citer

Meryiem Derraz, Abdelaziz Elouahli, Chouaib Ennawaoui, Mohamed Aymen Ben Achour, Abdelkader Rjafallah, et al.. Extraction and Physicochemical Characterization of an Environmentally Friendly Biopolymer: Chitosan for Composite Matrix Application. Journal of Composites Science, 2023, 7 (6), pp.260. ⟨10.3390/jcs7060260⟩. ⟨hal-04342124⟩
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