Naslov
Interactions in polyvinyil acetat - paper adhesive joint and influence on its adhesion parameters

Autori
Petković, Gorana ; Rožić, Mirela ; Vukoje, Marina ; Pasanec Preprotić, Suzana

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings - 8th International Symposium on Graphic Engineering and Design / Živko Pavlović - Novi Sad : University of Novi Sad, Faculty of Technical Sciences, Department of Graphic Engineering and Design, 2016, 91-101

ISBN
978-86-78928-67-3

Skup
International Symposium on Graphic Engineering and Design, GRID (8 ; 2016 ; Novi Sad)

Mjesto i datum
Novi Sad, Srbija, 03.11.2016. - 04.11.2016

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
adhesion ; PVAc adhesive ; paper ; inorganic fillers ; surface free energy

Sažetak
Adhesives have a wide range of applications in various industries including the printing industry. Water based emulsion adhesives being used in printing industry are most often based on polyvinyl acetate (PVAc) homopolymers, especially in bookbinding for short run book production and caseing in. Polyvinyl acetate emulsion adhesive formulations are affordable, regarded as being nontoxic and easy to handle. Designing durable and quality short run products requires understanding the interactions between used materials in adhesive joint and the basic components of paper and adhesive. In this study, the adhesive parameters of polyvinyl acetate adhesive on five paper samples containing different shares of inorganic fillers (0%, 18.5%, 20.5%, 21% and 30%) have been investigated. Paper samples were investigated in the terms of surface roughness, moisture, ash and CaCO3 content. The moisture content was similar as well as surface roughness of all paper sample, except roughness of paper with 0% of inorganic fillers – filter paper. Ranking based on ash content was same as one based on CaCO3 content. Besides the different paper properties, the varying amount of water (0%, 2.5% and 5%) in adhesive have been studied as well. Polyvinyl acetate adhesive was applied on all samples under the same conditions (23°C and 50% RH) and method. The analysis of the surface free energy (SFE) and its polar and dispersive components of paper and adhesive was performed by contact angle measurements. Based on those measurements, excluding a hydrophilic filter paper again, all other paper samples showed hydrophobic character and small SFE values (under 40 mJ/m2). There was no large impact on SFE of hydrophilic adhesive samples due to added amount of water. According to the obtained results, the interfacial free energy between two phases and mechanical work of the adhesion was calculated.

Izvorni jezik
Engleski

Znanstvena područja
Grafička tehnologija

Napomena
Ovaj rad je u sklopu SuZ financijske potpore istraživanju: “Utjecaj interakcija tiskarska boja - tiskovna podloga na klasično i organsko recikliranje” (voditeljica: prof.dr.sc. Mirela Rožić).

POVEZANOST RADA