Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/103481
Author(s): Catarina Carneiro
Ricardo Vieira
Adélio M. Mendes
Fernão D. Magalhães
Title: Nanocomposite acrylic paint with self-cleaning action
Issue Date: 2012
Abstract: A nanodispersion of surface-functionalized fumed silica was incorporated into an acrylic paint formulation. SEM imaging indicated good dispersion of silica within the polymer matrix. This hybrid coating showed significantly lower dirt pick-up than the equivalent paint formulation without nanosilica additive, towards both organic and inorganic ashes. Washing with running water further decreases dirt retention. This self-cleaning performance remained unchanged after several dirt/washing cycles, during a 1-month period. Surface hardness measurements indicated no significant differences between the original and composite paint films. The lower dirt pick-up was attributed to nanoroughness created by the nanosilica particles present in the film.
Subject: Engenharia dos materiais
Materials engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia dos materiais
Engineering and technology::Materials engineering
URI: https://repositorio-aberto.up.pt/handle/10216/103481
Related Information: info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projectos de I&DT em Todos os Domínios Científicos/PTDC/EQU-EQU/65300/2006/Nanocompósitos de óxidos metálicos para melhoria da resistência química e ambiental de revestimentos orgânicos/PTDC/EQU-EQU/65300/2006
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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