Author(s): Liu, Yuwei ; Jing, Su ; Carvalho, Diana ; Fu, Jiajia ; Martins, Madalena ; Cavaco-Paulo, Artur
Date: 2021
Persistent ID: http://hdl.handle.net/1822/74363
Origin: RepositóriUM - Universidade do Minho
Subject(s): Cellulose; Ionic liquid; Coating; Keratin fibers; Dimensional changes; Science & Technology; Engenharia e Tecnologia::Biotecnologia Industrial
The methylimidazolium chloride ionic liquid (IL) was successfully used for the dissolution of cotton cellulose. IL and IL-cellulose were investigated by X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) spectroscopy analyses. The obtained IL-cellulose was applied to wool and hair keratin fiber surfaces, forming a fine coating layer. From FT-IR and XRD analyses, the results suggested the reduction of hydrogen bonds and crystallinity in IL-cellulose-coated wool fibers. This effect was caused by covering the wool with the IL-cellulose coating, and good intrinsic mechanical properties were observed. Moreover, the dimensional performance of coated keratin fibers presented length variations of around 8 and 12\% under wet and dry conditions for wool and hair fibers, respectively. Coated keratin fibers could be of great value for a cleaner process in the cosmetic area associated with their ability to stretch and curl when triggered by humidity.
Portuguese Foundation for Science and Technology (FCT) under the scope of the strategic funding of UIDB/04469/2020 unit and BioTecNorte operation (NORTE-01-0145-FEDER-000004) funded by the European Regional Development Fund under the scope of Norte2020
info:eu-repo/semantics/publishedVersion
