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A Silicone Resin Coating with Water-Repellency and Anti-Fouling Properties for Wood Protection
oleh: Zehao Ding, Wensheng Lin, Wenbin Yang, Hanxian Chen, Xinxiang Zhang
Format: | Article |
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Diterbitkan: | MDPI AG 2022-07-01 |
Deskripsi
The strong hygroscopicity of wood greatly shortens its service life. Here, a simple impregnation modification approach was used to construct superhydrophobic silicone resin coatings on wood surfaces. Briefly, with hydrofluorosilicone oil (HFSO), tetramethyl tetravinyl cyclotetrasiloxane (V<sub>4</sub>), and hydrophobic SiO<sub>2</sub> from industrial production as raw materials, superhydrophobic wood samples (water contact angle ~160.8°, sliding angle ~3.6°) can be obtained by simply dipping the wood in the HFSO/V<sub>4</sub>/SiO<sub>2</sub> modifier solutions. As a result, the superhydrophobic silicone resin coating constructed on the wood surface still has good water repellency after finger touching, tape peeling, and sandpaper abrasion. When the mass ratio of HFSO to V<sub>4</sub> is 2:1, the water absorption of the resulting wood after soaking in water for 24 h is only 29.2%. Further, the resulting superhydrophobic wood shows excellent anti-fouling properties. Finally, we believe that the impregnation modification method proposed in this study can be applied to the protection of cellulose substrates.