20.500.12556/DKUM-50463 Viscose functionalisation with a combination of chitosan/BTCA using microwaves Improved hygiene and health care standards have a great impact on the development of hygiene and health care products. For this purpose, viscose is a very popular substrate. One of the most promising anti-microbial compounds of modern times is chitosan. The anti-microbial action of this polysaccharide depends on the amino group amount, which is crucial for ensuring the effectiveness of anti-microbial treated material. In textile finishing, 1,2,3,4-buthanetetracarboxylic acid (BTCA) is usually used as a non-formaldehyde crease-resistant reagent. But, on the other hand, the negatively charged carboxyl groups of BTCA can be explored as additional binding sites for positively-charged protonated amino groups of chitosan. When using microwaves, polar materials (e.g. chitosan) orient and reorient themselves according to the direction of the electro-magnetic field, which means that chitosan chain-bending may have taken place during the drying with microwaves. This could result in a higher specific surface of the chitosan and, consequently, in a higher proportion of available amino groups. It is concluded that the combination chitosan/BTCA supported by microwaves drying represents an ideal combination to increase the proportion of available amino groups. viskoza protimikrobna zaščita viscose chitosan/BTCA microwawes Acid Orange VII methylene blue antimicrobial activity true false false Angleški jezik Angleški jezik Delo ni kategorizirano 2015-07-10 12:40:18 2015-07-10 12:40:18 2022-05-29 03:07:04 2019-07-10 21:51:25 2013 0 0 str. 24-29 no. 5(101) Vol. 21 2013 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 677.1:57.083 34493952 17107734 1230-3666 URN:SI:UM:DK:ORVNDTJJ http://fibtex.lodz.pl/article982.html 1 https://dk.um.si/Dokument.php?lang=slv&id=75022 Fakulteta za strojništvo 0 0 0