2020/12/09 by Julia Auernhammer, Alena K. Bell, Auernhammer, Julia +17
Materials Science · #Advanced Cellulose Research Studies #Applied Physics (physics.app-ph) #Chemical Physics (physics.chem-ph) #FOS: Physical sciences #Natural Fiber Reinforced Composites #Textile materials and evaluations
paper · pdf · doi:10.48550/arxiv.2012.04933
openalex publication_date 2020/12/09 · openalex created_date 2022/07/25 · openalex updated_date 2026/07/28
Polymer coatings on cellulosic fibres are widely used to enhance the natural\nfibre properties by improving, for example, the hydrophobicity and wet\nstrength. Here, we investigate the effects of a terpolymer P(S-co-MABP-co-PyMA)\ncoating on cotton linters and eucalyptus fibres to improve the resistance of\ncellulose fibres against wetness. Coated and uncoated fibres were characterised\nby using scanning electron microscopy, contact angle measurements, Raman\nspectroscopy and atomic force microscopy with the objective of correlating\nmacroscopic properties such as the hydrophobicity of the fleece with\nmicroscopic properties such as the coating distribution and local\nnanomechanics. The scanning electron and fluorescence microscopy results\nrevealed the distribution of the coating on the paper fleeces and fibres.\nContact angle measurements proved the hydrophobic character of the coated\nfleece, which was also confirmed by Raman spectroscopy measurements that\ninvestigated the water uptake in single fibres. The water uptake also induced a\nchange in the local mechanical properties, as measured by atomic force\nmicroscopy. These results verify the basic functionality of the hydrophobic\ncoating on fibres and paper fleeces but call into question the homogeneity of\nthe coating.\n