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Vpliv kakovosti vlaknin na obremenitev odpadnih voda in lastnosti papirja : diplomsko delo (univerzitetni študij) = Effect of fibrins quality on the burdening of waste water and paper characteristics : graduation thesis (university studies)Šinkovec, AndrejRaziskali smo vpliv kakovosti različnih vlaknin na obremenitev odpadnih voda in nekatere mehanske in površinske lastnosti papirja. Primerjali smo lesovino, kemijska in bombažna vlakna z enako stopnjo ... mletja. Iz teh vlaknin in različnih količin ter vrst pomožnih sredstev smo na laboratorijskem oblikovalniku listov za vsako vlaknino izdelali 5 različnih vrst vzorcev papirja. Papir 1. serije je vseboval le vlaknine; v 2. seriji smo vlakninam dodali pomožna sredstva (polnilo, klejivo, snov za izboljšanje odpornosti suhega papirja); v 3., 4. in 5. seriji smo dodali se 0,1 %, 0,3% in 1% retencijskega sredstva. Sitove vode so bile najmanj obremenjene in mehanske lastnosti najboljše pri vseh 3 vlakninah 1. serije izdelave papirja. Ker se papir ne izdeluje le iz vlaken, 1. serije nismo upoštevali. Tako smo dobili najbolj čisto odpadno vodo, vendar najslabše mehanske lastnosti za lesovino 4.serije izdelave papirja. Enako je veljalo za bombaž. Pri kemijskih vlaknih je bila najmanj obremenjena voda 5. serije, najboljše mehanske lastnosti so bile v 2. Primerjava med vlakninami pokaže na najboljšo vezavo polnila v papirju iz bombaža, najslabšo v papirju iz kemijskih vlaken. Daleč najboljše mehanske lastnosti ima papir iz kemijskih vlaken, najslabše papir iz lesovine.Na najboljše mehanske lastnosti papirja iz kemijskih vlaken vpliva najvišja površinska aktivnost in največja dolžina teh vlaken. Pokaže se tudi zakonitost, da slabša retencija dodanih sredstev pozitivno vpliva na mehanske lastnosti papirja.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [A. Šinkovec], 2002Language - slovenianCOBISS.SI-ID - 955529
Author
Šinkovec, Andrej
Other authors
Tišler, Vesna, 1947- |
Rutar, Vera |
Petrič, Marko, 1962-
Topics
vlaknine |
papir |
odpadne vode |
fibrins |
paper |
waste paper
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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 755 IN: 020020270 |
available - reading room |
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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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Tišler, Vesna, 1947- | 02037 |
Petrič, Marko, 1962- | 00395 |
Source: Personal bibliographies
and: SICRIS
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