Wood protective coatings based on fluorocarbosilane

Karol Szubert,Michał Dutkiewicz,Hieronim Maciejewski,Agnieszka Dutkiewicz

doi:10.1007/s10570-019-02737-x

Karol Szubert, Michał Dutkiewicz + Show 2 more

Open Access

https://doi.org/10.1007/s10570-019-02737-x

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Journal: Cellulose	Publication Date: Sep 13, 2019
Citations: 11	License type: open-access

Affiliation: Adam Mickiewicz University in Poznań

Abstract

The effectiveness of protective coatings based on 3-(2,2,3,3,4,4,5,5-octafluoropentyloxy)propyltriethoxysilane in the protection of wood surface from the effects of water was tested. No earlier attempts at using the mentioned fluorocarbosilane for the protection of wood have been reported in the literature. The coatings were deposited by the sol–gel method. As a result of the generation of chemical bonds between the wood surface and silane, a coating was produced that permanently increased the wood hydrophobicity. Fluorinated chains attached to the silicon atoms make an effective barrier preventing the access of water and limiting the effects of water on the wood surface.

Highlights

Wood is one of the most important construction materials. It undergoes a steady, slow process of deterioration when exposed to the natural elements such as water, oxygen and irradiation, so it must be protected against their influence
The condensation of silica nanoparticles proceeded in a basic environment, while the condensation of the OFTES-based coatings proceeded in acetic acid
The obtained gel was deposited on the wood surface

Summary

Introduction

Wood is one of the most important construction materials. it undergoes a steady, slow process of deterioration when exposed to the natural elements such as water, oxygen and irradiation, so it must be protected against their influence. Fluoroalkylsilanes are used as surfactants, Cellulose (2019) 26:9853–9861 as agents for the modification of lenses and fiber optic cables, as components of many cosmetic preparations and as modifiers of fluorinated polymers and silicon rubbers. Attractive is their use in the production of surfaces resistant to oil, dirt and water (Bukowski et al 2005; Dopierala et al 2013; Iacono et al 2007; Riess and Krafft 1998; Wong et al 2003). The wood-protecting properties of the coatings made of these materials have been studied by a number of methods for surface analysis and water absorption tests. All the obtained coatings were tested on three samples in parallel and the results were averaged

Results and discussion

Conclusions

Compliance with ethical standards