Naslov
Enhancement of Polyvinyl Acetate (PVAc) Adhesion Performance by SiO2 and TiO2 Nanoparticles

Autori
Petković, Gorana ; Vukoje, Marina ; Bota, Josip ; Pasanec Preprotić, Suzana

Izvornik
Coatings (2079-6412) 9 (2019), 707; 9110707, 17

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
PVAc adhesive ; nano-enhanced adhesive ; adhesive joint ; adhesion performance ; peel resistance
(PVAc adheziv ; nano modificirani adheziv ; adhezijski spoj ; uspješnost adhezije ; otpornost na ljuštenje)

Sažetak
Post press processes include various types of bonding and adhesives, depending upon the nature of adherends, the end use performance requirements and the adhesive bonding processes. Polyvinyl acetate (PVAc) adhesive is a widely used adhesive in the graphic industry for paper, board, leather and cloth. In this study, the enhancement of PVAc adhesion performance by adding different concentrations (1%, 2% and 3%) of silica (SiO2) and titanium dioxide (TiO2) nanoparticles was investigated. The morphology of investigated paper-adhesive samples was analyzed by SEM microscopy and FTIR spectroscopy. In addition, the optimal adhesion at the interface of paper and adhesive was found according to calculated adhesion parameters by contact angle measurements (work of adhesion, surface free energy of interphase, wetting coefficient). According to obtained surface free energy (SFE) results, optimum nanoparticles concentration was 1%. The wettability of the paper-adhesive surface and low SFE of interphase turned out as a key for a good adhesion performance. The end use T-peel resistance test of adhesive joints confirmed enhancement of adhesion performance. The highest strength improvement was achieved with 1% of SiO2 nanoparticles in PVAc adhesive.

Izvorni jezik
Engleski

Znanstvena područja
Grafička tehnologija

Napomena
Rad objavljen u sklopu SuZ financijske potpore
istraživanju:"Modifikacije konvencionalnih grafičkih materijala
nanočesticama i kromogenim materijalima i njihova zdravstvena
ispravnost" (voditeljica: prof.dr.sc. Mirela Rožić)

Glavna autorica rada: Petković Gorana
Druga glavna autorica rada: Vukoje Marina

POVEZANOST RADA