BF, Dept. of Wood Technology, Lj. (BFLES)
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Vpliv povzročene deformacije med utrjevanjem lepila na končno trdnost spoja : diplomsko delo - visokošolski strokovni študij = Influence of caused deformation during curing to final strength of adhesive bond : graduation thesis - higher professional studiesGladoić, DanijelProučevali smo vpliv deformacije med utrjevanjem lepila na končno trdnost lepilnega spoja. Uporabili smo fenol-formaldehidno (FF) lepilo za lepljenje vezanega lesa in bukov furnir (Fagus sylvatica ... L.). Debelina furnirja je bila 1,1 mm in nanos lepila je bil 200 g/m2. Preskušance smo testirali z univerzalnim testirnim strojem ZwickZ100 po prilagojeni metodi DGST "Dinamika Graditve Strižne Trdnosti", ki je prilagojena metoda ABES "Automated Bonding Evaluation System". Stroj je imel nameščeno manjšo vročo stiskalnico s posebnim ventilom, ki je pri povzročanju deformaciji znižal tlak stiskanja na 0 MPa, ne da bi se stiskalnica odprla. Preskušance smo lepili pri temperaturi stiskalnice 140 °C in tlaku 1,2 MPa. Med lepljenjem smo povzročali deformacije velikosti 0,5 mm, 0,75 mm in 1mm, pri različnih časih stiskanja (od 10 do 55 sekund po pričetku stiskanja). Rezultati raziskave so pokazali, da velikost deformacije ni bistveno vplivala na končno trdnost spoja, bolj je vplival čas pri katerem smo deformacijo povzročili. Deformacija povzročena po 10 sekundah stiskanja še ni imela vpliva na končno trdnost, pri 15 sekundah pa se je že opazil padec trdnosti in po 50 sekundah je bila končna trdnost spoja enaka 0 N/mm2. Številne nastale vezi v lepilu se namreč porušijo in se v tej fazi ne morejo več obnoviti.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [D. Gladoić], 2016Language - slovenianCOBISS.SI-ID - 2666121
Author
Gladoić, Danijel
Other authors
Šernek, Milan |
Jošt, Matej, lesar |
Kariž, Mirko
Topics
fenol-formaldehidno lepilo |
deformacija |
utrjevanje |
strižna trdnost |
phenol-formaldehyde adhesive |
deformation |
curing |
shear strength
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Knjižnica BF za lesarstvo vsn 0000000431 IN: 020160200 Knjižnica BF za lesarstvo vsn 431 IN: 020160200 |
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DRS, in which the journal is indexed
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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Gladoić, Danijel | ![]() |
Šernek, Milan | 16382 |
Jošt, Matej, lesar | 24295 |
Kariž, Mirko | 29227 |
Source: Personal bibliographies
and: SICRIS
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