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HYDROPHOBIC COATINGS ON CELLULOSE MATERIALS

https://doi.org/10.32362/2410-6593-2018-13-6-28-34

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Abstract

A new hydrophobizator - tetra(ethoxy)di(octyl)disiloxane (TEDODS) - was synthesized in an ethanol solution at boiling point for 6 hours and characterized by NMR and IR spectroscopy. New hydrophobic coatings based on this compound were obtained under mild conditions by direct chemical modification of the surfaces of the cellulose materials (textile of different composition). The formation of a modified layer on the materials surface occurs due to the interaction of the ethoxy groups of the modifier and the hydroxyl groups of cellulose followed by heat treatment to fix it on the materials surface. The optimal conditions for obtaining the coatings were determined: 8% TEDODS weight gain with maximum hydrophobicity, with a wetting angle of 135°. The properties of the modified cellulose materials were studied (hydrophobicity, moisture absorption, etc.). The efficiency of using tetraethoxydioctyldisiloxane as a hydrophobizator when the content from 1% and a relatively small thickness of the coating of 2 microns was shown. It was found that hydrophobic coatings on the surface of cellulosic materials have little effect on moisture absorption and breathability of the original tissue.

About the Authors

O. V. Baranov
A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences (INEOS RAS)
Russian Federation

Ph.D. (Chemistry), Research Fellow of the Laboratory of Heterochain Polymers

28, Vavilova st., Moscow 119991, Russia

ResearcherID: J-7024-2014

IstinaResearcherID (IRID): 49926035



L. G. Komarova
A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences (INEOS RAS)
Russian Federation

Ph.D. (Chemistry), Senior Research Fellow of the Laboratory of Heterochain Polymers

28, Vavilova st., Moscow 119991, Russia

IstinaResearcherID (IRID): 49932525



A. V. Rushevskaya
A.N. Kosygin Russian State University
Russian Federation

Student of the Chair of Chemistry and Technology of Polymer Materials and Nanocomposites

33, Sadovnicheskaya st., Moscow 117997, Russia



V. I. Gomzayk
MIREA - Russian Technological University (M.V. Lomonosov Institute of Fine Chemical Technologies)
Russian Federation

Ph.D. (Chemistry), Assistant of Professor oh the Medvedev Chair of Chemistry and Technology of Macromolecular Compounds

86, Vernadskogo pr., Moscow 119571, Russia

ResearcherID: E-4518-2017

IstinaResearcherID (IRID): 49931699



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For citation:


Baranov O.V., Komarova L.G., Rushevskaya A.V., Gomzayk V.I. HYDROPHOBIC COATINGS ON CELLULOSE MATERIALS. Fine Chemical Technologies. 2018;13(6):28-34. (In Russ.) https://doi.org/10.32362/2410-6593-2018-13-6-28-34

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ISSN 2410-6593 (Print)
ISSN 2686-7575 (Online)