20.500.12556/DKUM-38895 VPLIV KOMPONENT NA PROTIKOROZIJSKO DELOVANJE PRAŠKASTEGA LAKA INFLUENCE OF COMPONENTS ON ANTI-CORROSION BEHAVIOR OF POWDER COATINGS Cilj diplomske naloge je bil z obstoječimi metodami in postopki razviti praškasti lak s povečanimi protikorozijskimi lastnostmi. S testiranjem smo ugotavljali vpliv različnih protikorozijskih pigmentov na protikorozivno delovanje. V razvojnem laboratoriju praškastih lakov Cinkarne Celje, PE Kemija Mozirje, smo razvili praškaste lake za protikorozijsko zaščito. Praškasti laki (PL) so barve v prahu, ki nudijo zaščito vsem vrstam kovinskih izdelkov. V primerjavi s klasičnimi premazi imajo številne ekološke in ekonomske prednosti. Praškasti laki so 100 % suha snov, zato ob njihovi uporabi ne prihaja do izpustov hlapnih komponent v zrak in do emisij v vodo. Ker ne vsebujejo toksičnih snovi, so varni za uporabnike. Ne vsebujejo vnetljivih komponent, zato ni nevarnosti za vžig ali eksplozijo. Za doseganje povečane korozijske odpornosti končnih izdelkov je potrebno pred lakiranjem s končnim lakom material zaščititi še s protikorozijskim PL. Poglavitni parameter za protikorozijski PL je dobra korozijska obstojnost, ki se določa s standardizirano metodo za določanje relativne korozijske obstojnosti lakiranih ploščic v kontrolirani slani atmosferi. Postopek je potekal v slani komori s pršenjem slane meglice po zahtevah standarda. Ugotovljali smo, kako po določenem času izpostavljenosti v slani komori vzdržijo testni laki v primerjavi s konkurenčnimi. Rezultat je pokazal, da nekateri pigmenti, ki smo jih uporabili, ugodno vplivajo na korozijsko obstojnost PL. Na osnovi dobljenih rezultatov primerjalno na konkurenčni izdelek, smo razvili praškasti lak s protikorozijskim delovanjem (primer), ki je primeren za komercialno uporabo. The aim of this thesis was to develop a powder coating with increased corrosion protection properties with already existing methods and procedures. By testing the influence of various anticorrosion pigments on corrosion performance was established. At the powder coatings development laboratory Cinkarna Celje, PE Kemija Mozirje, we have developed a powder varnish for corrosion protection. Powder coatings (PC) are powder colours that provide protection for all types of metal products. In comparison with conventional coatings these have numerous ecological and economic advantages. Powder varnishes are 100 percent dry matter, and in their application there is no release of volatile components in the air and no emissions to water. Because they do not contain toxic substances are safe for users. They do not contain combustible components, so there is no danger of ignition or explosion. To achieve the increased corrosion resistance of finished products is necessary to protect the material by anticorrosion PC before painting the final varnish. The main parameter for corrosion PC is a good corrosion resistance, which is determined by a standardized method for determining the relative corrosion resistance of varnished tiles in a controlled atmosphere of salt. The procedure took place in a salt chamber with spraying salt mist to the requirements of the standard. The aim was to identify how after a certain time of exposure in the salt chamber the test varnishes withstand compared to the competition. The results showed that some of the pigments we used have a beneficial effect on the corrosion resistance of PC. Based on the comparative results with the competitive product the powder coating with anticorrosion operation (see example) which is suitable for commercial use was developed. praškasti lak korozija protikorozijska zaščita slana komora powder coating corrosion corrosion resistance salt chamber true true false [M. Hrastnik] Slovenski jezik Angleški jezik Diplomsko delo 2012-11-04 13:37:20 2012-11-07 13:06:48 2022-05-04 13:48:44 2021-04-13 03:34:58 2012 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 667.648.2(043.2) 16719382 URN:SI:UM:DK:LMOHG76D VS_Hrastnik_Minka_2012.pdf VS_Hrastnik_Minka_2012.pdf 1 5E2BC9ED89A3C72AF63E49287907AC87 8e87309b3b265ec5d4346f6ff6ac408bd7de7d73823598051ff143fdbc9154a2 95e771d4-7c08-11eb-bb7a-00155d0001ca 20.500.12556/dkum/9ab90e4c-ea80-42bd-aa65-f8ce26161e39 https://dk.um.si/Dokument.php?lang=slv&id=52265 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0