20.500.12556/DKUM-67845 Samočistilne tekstilije na osnovi nanonanosov s $TiO_2$ Self-cleaning textiles based on nano $TiO_2$ coatings V prispevku je opisan postopek priprave samočistilnih poliestrnih (PES) tekstilij s fotokatalitičnimi $TiO_2$ nanonanosi. Samočistilno površino smo pripravili s sol-gel procesom in proučili vpliv pogojev postopka na oblikovanje nanonanosov na vlaknih. Pri postopku polikondenzacije nanodelcev $TiO_2$, smo uporabili kisli in bazični katalizator. Pri toplotni obdelavi nanodelcev na poliestrnem substratu se je tvorila polimorfna kristalna $TiO_2$ struktura anataz, ki ima širšo optično vrzel v frekvenčnem pasu kot kristalna oblika rutil. Obdelane tekstilije smo analizirali, da bi določili vpliv postopka obdelave na njihove uporabne lastnosti. Raziskava je potrdila, da s sol-gel postopkom oblikujemo nanonanose s samočistilno sposobnostjo, vendar pa imajo boljše fotokatalitične sposobnosti $TiO_2$ nanosi, pridobljeni iz kislega sola. Postopek obdelave poliestrnih pletiv s $TiO_2$ nanonanosi ni pomembno vplival na mehanske lastnosti PES pletenin. The aim of this research was to obtain self-cleaning properties of PES surfaces by nano-modification with $TiO_2$ coatings. The sol-gel process was used to prepare $TiO_2$ nanoparticles and the influence of process conditions on the formation of nano-coatings was studied. Acid and alkaline catalysts were used in the polycondensation process of $TiO_2$. The heat treatment of nanoparticles on the polyester substrate caused the formation of a polymorphic form of $TiO_2$ anatase which has a wider band gap than the crystal structure rutile. To determine the efficiency of the fibre nano-modification and influence of the treatment on the fibre properties, the photocatalytic activity was observed by Foron Brill. Violett EBIN degradation and the mechanical properties were determined. The results show that the photocatalytic properties of $TiO_2$ coatings obtained from acid sol are higher than those obtained from alkaline sol. However, the influence on mechanical properties of PES knitted fabrics was insignificant irrespective of the treatment conditions used in the process. tekstilije modifikacija tekstilnih vlaken samočistilne lastnosti celuloza titanijev dioksid rutil nanodelci sol-gel metoda fotodegradacija fotokataliza textile fibres modification of textile fibres self-cleaning properties cellulose Titanium dioxide rutile nanoparticles sol-gel method photocatalysis photodegradation true false true Slovenski jezik Angleški jezik Znanstveno delo 2017-08-31 14:30:23 2017-08-31 14:31:48 2022-08-01 14:31:21 2019-07-11 16:33:05 2006 0 0 str. 213-217 št. 10/12 Letn. 49 2006 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 0351-3386 677.494.017 763396 11269398 0351-3386 URN:SI:UM:DK:OIW74EXZ Tekstilec_2006_Veronovski_et_al._Samocistilne_tekstilije_na_osnovi_nanonanosov_s_TiO2.pdf Tekstilec_2006_Veronovski_et_al._Samocistilne_tekstilije_na_osnovi_nanonanosov_s_TiO2.pdf 1 58B787F468429A261D43B2ED50D400C2 07b26f452a0f8cb23ecfcd69d1aa368cec9e208f6eabc9c126aafeb60c585864 9aff61bc-7c0e-11eb-bb7a-00155d0001ca 20.500.12556/dkum/11841c5d-f3db-4f9c-aea6-260b69048f2f https://dk.um.si/Dokument.php?lang=slv&id=116636 http://www.tekstilec.si/wp-content/uploads/2013/10/Samo%C4%8Distilne-tekstilije-na-osnovi-nanonanosov-s-TiO2.pdf 1 https://dk.um.si/Dokument.php?lang=slv&id=116635 Fakulteta za strojništvo 0 0 0