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Vpliv UV-žarkov na obstojnost lužila pri različnih lesnih vrstah : visokošolska (univerzitetna) diplomska naloga = Impact of UV-rays on stain durability at various wood species : graduation thesisRuparčič, MarijaNa intenzivnost spremembe barve vplivajo vrsta premaznega sredstva, vrsta lesa in čas izpostavitve UV- sevanju, ki nam pokaže, kako sta vrsta premaza in vrsta lesa obstojni na svetlobo. Poleg ... sintetičnih lužil se kot lužilo lahko uporablja tudi tanin, ki v kombinaciji z anorganskimi solmi tvori kompleksne spojine različnih odtenkov barv. Uporabili smo 3% stilbensko frakcijo vodnega ekstrakta smrekove skorje in različne koncentracije vodnega ekstrakta smrekove skorje v kombinaciji z bakrovim (II) kloridom, nitro in vodno lužilo na štirih lesnih vrstah. Po 72 urni izpostavitvi vzorcev UV-sevanju smo primerjali spremembo barve in obstojnost posameznega lužila na 4-ih različnih lesnih vrstah. Spremembo barve smo merili s spektrofotometrom. Rezultati vsebujejo vrednosti spremembe barve L*, a*, b* barvnem sistemu, pripadajoče grafe in slike vzorcev, na katerih je vidna sprememba barve po 72-urni izpostavitvi UV-sevanju. Lužila dobljena z 10%, 25% in 40% koncentracijo vodnega ekstrakta smrekove skorje v kombinaciji z železovim (III) kloridom so se po izpostavitvi UV-sevanju izkazala za najbolj obstojna pri vseh raziskovanih vrstah.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [M. Ruparčič], 2000Language - slovenianCOBISS.SI-ID - 603785
Author
Ruparčič, Marija
Other authors
Mihevc, Vekoslav |
Tišler, Vesna, 1947-
Topics
UV-žarki |
tanin |
bakrove spojine |
železove spojine |
kompleksne spojine |
barvni sistem |
UV-rays |
tannin |
stain |
copper compound |
iron compound |
complex compound |
colour system
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Library | Call number – location, accession no. ... | Copy status |
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BF, Dept. of Wood Technology, Lj. | Knjižnica BF za lesarstvo dn 675 IN: 020000096 |
available - reading room |
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Mihevc, Vekoslav | 01631 |
Tišler, Vesna, 1947- | 02037 |
Source: Personal bibliographies
and: SICRIS
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