The Potential of Functionalized Ceramic Particles in Coatings for Improved Scratch Resistance
by
Caterina Lesaint Rusu 1, Malin Brodin 2, Tor Inge Hausvik 3, Leif Kåre Hindersland 3, Gary Chinga-Carrasco 2
, Mari-Ann Einarsrud 1 and Hilde Lea Lein 1,*
Caterina Lesaint Rusu 1, Malin Brodin 2, Tor Inge Hausvik 3, Leif Kåre Hindersland 3, Gary Chinga-Carrasco 2, Mari-Ann Einarsrud 1 and Hilde Lea Lein 1,*
1
Department of Materials Science and Engineering, NTNU, N-7491 Trondheim, Norway
2
RISE PFI AS, 7034 Trondheim, Norway
3
Berry Alloc, 4580 Lyngdal, Norway
*
Author to whom correspondence should be addressed.
Coatings 2018, 8(6), 224; https://doi.org/10.3390/coatings8060224
Received: 28 May 2018 / Revised: 15 June 2018 / Accepted: 16 June 2018 / Published: 19 June 2018
(This article belongs to the Special Issue Active Organic and Organic-Inorganic Hybrid Coatings and Thin Films: Challenges, Developments, Perspectives)
The top layer of a typical high pressure floor laminate (HPL) consists of a melamine formaldehyde (MF) impregnated special wear layer (overlay) with alumina particles. This top layer plays a crucial role in determining the mechanical properties of the laminate. For HPLs, scratch resistance and scratch visibility are particularly important properties. This study aimed to improve the mechanical properties, particularly the scratch resistance, by adjusting the composition of the overlay. Laminates containing alumina particles were prepared and tested. These alumina particles were additionally functionalized with a silane coupling agent to ensure better adhesion between the particles and the resin. The functionalized particles led to enhanced scratch resistance of the laminates as well as improved dispersion of the particles within the resin. Micro scratch testing revealed that by using functionalized particles, the scratch surface damage was reduced and the recovery characteristics of the surface layer were improved. Higher scratch resistance and scratch hardness were thus obtained, along with a reduced scratch visibility.
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Keywords:
high pressure laminates (HPL); overlay; alumina; functionalization; silane coupling agent; scratch resistance; scratch visibility; scratch hardness
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
MDPI and ACS Style
Rusu, C.L.; Brodin, M.; Hausvik, T.I.; Hindersland, L.K.; Chinga-Carrasco, G.; Einarsrud, M.-A.; Lein, H.L. The Potential of Functionalized Ceramic Particles in Coatings for Improved Scratch Resistance. Coatings 2018, 8, 224.
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