A concept on biodegradability of fatliquors / Bindia Sahu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIX, N° 5 (05/2024)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXIX, N° 5 (05/2024) . - p. 222-230 Titre : A concept on biodegradability of fatliquors : A sustainable and cleaner leather processing Type de document : texte imprimé Auteurs : Bindia Sahu, Auteur ; Indrasis Das, Auteur ; Akash Bhalla, Auteur ; Ravi Banothu, Auteur Année de publication : 2024 Article en page(s) : p. 222-230 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Biodégradation Caractérisation Cuirs et peaux -- Propriétés organoleptiques Cuirs et peaux -- Propriétés physiques Huile de ricin et constituants Produits de nourriture du cuir Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The biodegradability of a fatliquor is an important parameter to consider in leather processing as it is critical to obtain an easily treatable waste effluent leading towards a more sustainable and cleaner environment. Fatliquor biodegradability depends upon the functional groups (double bond or hydroxyl) present in the oil after chemical modification, the level and ratio of functional groups impact the degree of biodegradability. In the present investigation, the chemical modification of castor oil was achieved via the sulfation method by varying the level of concentrated sulfuric acid H2SO4 (17 to 19 ml per 100 gm of castor oil) is tested for fatliquoring properties against a control (Turkey Red Oil). The sample treated with 17 ml concentrated H2SO4 shows better biodegradability than the other samples. The FTIR, particle size and zeta potential analysis of experimental fatliquors and morphological and physical strength (tensile strength, and elongation) characterization of the experimental leathers are comparable to the standard values. Note de contenu : - MATERIALS AND METHODS : Materials - Preparation of sulphated castor oil fatliquor with varying concentration of sulfuric acid - Characterization of fatliquor Particle size analysis of fatliquor - FTIR analysis of fatliquor - Biodegradability test of fatliquors - Fatliquor Application in post-tanning operation - Scanning Electron Microscopic (SEM) analysis - Physical strength characteristics and organoleptic properties of leather - Effect of fatliquor on the germination of Vigna radiata L. Wilcze - RESULTS AND DISCUSSION : Fatliquor particle size and zeta potential analysis - FTIR analysis of fatliquors - Biodegradability test - Effect of spent fat liquors on the germination of vigna radiata L. Wilcze and stem length of sprouts - Scanning Electron Microscopic (SEM) analysis - Physical strength characteristics and organoleptic properties of leather - - Table 1 : Nomenclature of the experimental fatliquors - Table 2 : Process recipe for fatliquoring - Table 3 : BOD/COD of different fat liquor samples - Table 4 : Sprout growth of experimental samples of Vigna radiata L. Wilcze - Table 5 : Physical properties of the leather processed by as-synthesized fatliquors DOI : https://doi.org/10.34314/9b3hbh38 En ligne : https://drive.google.com/file/d/1O7Xzg6VPgerGzmkLZInb3ybTKLxVwXVy/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40976 [article]

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