The application of layer-by-layer deposition on textiles

Abstract

U svijetu se u posljednjih 20 godina provode intenzivna istraživanja mogućnosti nanošenja tankih nanosa sloj po sloj na podlogu čime se bitno mijenjaju njena svojstva. Nanosi su debljine nekoliko nanometara, a nanose se izmjenično najčešće tako da najprije dođe nanos s pozitivnim slojem, zatim se ispire, pa zatim nanos s negativnim slojem. Može biti i obrnuto. Takva obrada se ponavlja više puta pa se dobivaju višeslojni nanosi. Materijalima s višeslojnim nanosima poboljšavaju se željena svojstva. Ova tehnika moguća je i na tekstilu čime se na obrađenom materijalu dobiva povećana hidrofilnost ili bolja otpornost na gorenje, otpornost na bakterije, zaštita od UV zračenja i drugo. Postojanost tih svojstava na pranje je predmet intenzivnog istraživanja. Laboratorijskim obradama dobiveni su dobri rezultati, ali ova obrada još nije provedena u pogonu, te se očekuje da će se i to uspjeti u bližoj budućnosti.Intensive research of layer-by-layer deposition on various substrates, whose properties are thereby substantially changed, has been carried out over the past 20 years. Deposits of only several nanometers in thickness are deposited by alternate applying of differently charged layers. This process is repeated several times resulting in multi-layered films. This kind of functionalism enhances initial properties of materials. The application of this technique is also possible on textiles, which improves the hydrophility of the treated material or better fire retardancy, bacterial resistance, UV resistance etc. Wash fastness of the mentioned properties is the subject of intensive research. Laboratory treatments yielded good results, but this kind of treatment has not yet been introduced into practice, but it is expected in near future

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