Enhancement of Polyvinyl Acetate (PVAc) Adhesion Performance by SiO2 and TiO2 Nanoparticles
| Autor: | Gorana Petković, Marina Vukoje, Josip Bota, Suzana Pasanec Preprotić |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Materials science Adhesive bonding Nanoparticle 02 engineering and technology 01 natural sciences Contact angle chemistry.chemical_compound peel resistance 010608 biotechnology Materials Chemistry adhesion performance PVAc adhesive nano-enhanced adhesive adhesive joint Composite material Polyvinyl acetate Surfaces and Interfaces Adhesion 021001 nanoscience & nanotechnology Surface energy Surfaces Coatings and Films chemistry lcsh:TA1-2040 Wetting Adhesive pvac adhesive 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) |
| Zdroj: | Coatings, Vol 9, Iss 11, p 707 (2019) Coatings Volume 9 Issue 11 |
| ISSN: | 2079-6412 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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