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The Influence of Cotton/Polyester Blend Fabric Pre-treatment on Chitosan Functionalization
Anita Tarbuk
; Tekstilno-tehnološki fakultet Sveučilišta, Zagreb, Hrvatskau Zagrebu
Sandra Flinčec Grgac
; Tekstilno-tehnološki fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Tihana Dekanić
; Tekstilno-tehnološki fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Ivana Čorak
; Tekstilno-tehnološki fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Stefana Begović
; Tekstilno-tehnološki fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Sažetak
In this work, the influence of cotton/polyester blend fabric pretreatment on chitosan functionalization was investigated. For this purpose, a cotton/polyester blend fabric in twill weave was pretreated with 1.5 M NaOH and then functionalized with chitosan. Three wash cycles were performed to determine the durability. The zeta potential was measured with an electrokinetic analyzer EKA (Anton Paar) before and after functionalization, as well as after the first and third wash cycles, so that the presence of chitosan could be determined. The changes in mechanical properties - thread density, change in mass per unit area, tensile strength and elongation, spectral properties - whiteness, yellowing index and deviation from the white standard, moisture management and antimicrobial efficacy were determined according to standardized methods. Alkali pretreatment was discovered to enhance the amount of accessible hydroxyl groups of the cotton component and carboxyl groups of the polyester component in the blend, as well as the bonding of chitosan and hence wash resistance. Chitosan improves the blend's strength and antibacterial efficiency.
Ključne riječi
cotton-polyester blend, chitosan, zeta potential, moisture management
Hrčak ID:
315585
URI
Datum izdavanja:
24.3.2024.
Posjeta: 56 *