Utjecaj hrapavosti i aktivacije površine na kvašenje drva

master's thesis

• Title (english): Influence of roughness and surface activation on wood wetting
• Author: Nikolina Veseličić
• Mentor: Josip Miklečić (mentor)
• Committee member: Josip Miklečić (predsjednik povjerenstva)
• Committee member: Vlatka Jirouš Rajković (član povjerenstva)
• Committee member: Goran Mihulja (član povjerenstva)
• Granter: University of Zagreb; Faculty of Forestry and Wood Technology; (Institute of Furniture and Wood in Construction); Zagreb
• Defense date and country: 2019-09-27, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Wood Technology; Wood Technological Processes

Abstract

U ovom radu istražen je kut kvašenja i hrapavost na toplinski modificiranom i nemodificiranom drvu graba i drvu jasena. Površina je bila aktivirana s tri režima brušenja, blanjanjem i UV zračenjem. Hrapavost je mjerena neposrednom, kontaktnom metodom. Mjerenje je provedeno pomoću uređaja Taylor Hobson Surtronic S116, okomito na vlakanca. Kut kvašenja destilirane vode, vodenog laka i poliuretanskog laka mjeren je pomoću uređaja Goniometar i programa Dinocapture 2.0, a mjeren je nakon 2 s, 10 s i 30 s. Rezultati ispitivanja su pokazali da toplinska modifikacija, te sve vrste aktivacije utječu na hrapavost i kut kvašenja drva.

Abstract (english)

In this paper, the wetting angle and roughness on thermally modified and unmodified hornbeam and ash wood were investigated. The surface was activated with three modes of sanding, planing and UV radiation. Roughness was measured by a direct, contact method using a Taylor Hobson SURTRONIC S116, across the grain. The wetting angle of distilled water, water lacquer and polyurethane lacquer was measured using a Goniometer and Dinocapture 2.0. The wetting angle was measured after 2 s, 10 s and 30 s. Test results have shown that thermal modification and all types of activation affect the roughness and wetting angle of wood.

• Keywords: hrapavost; kvašenje drva; brušenje; poliuretanski lak
• Keywords (english): roughness; wood wetting; sanding; polyurethane coating
• Language: croatian
• URN:NBN: urn:nbn:hr:108:383438
• Study programme: Title: Wood Technology Processes; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka drvne tehnologije (magistar/magistra inženjer/inženjerka drvne tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-10-09 14:04:13