SUPERHYDROPHOBIC COATINGS BASED ON CELLULOSE ACETATE FOR PINEWOOD PRESERVATION.

Autor: DAVID, MADALINA ELENA, ION, RODICA-MARIANA, ANDREI, ELENA RAMONA, GRIGORESCU, RAMONA MARINA, IANCU, LORENA, FILIPESCU, MIRCEA IOAN
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Zdroj: Journal of Science & Arts; Mar2020, Vol. 20 Issue 1, p163-170, 8p
Abstrakt: This study deals with the investigation of the preservation of cellulose acetate based micronized particles (ZnO and TiO2) for the artificial wood preservation. The protection of wood artifacts has raised serious problems, due to the main factors that affect the wood structure, such as low temperature, fire and microbiological agents. These factors act on the wood structure and induce some degradation processes, such as discoloration, fragility and unsightly appearance. The capacity of these new composites used as a coating for wood was investigated on young and aged wood samples. First, it was tested the aspect of the samples after treatment and the colorimetric measurements have confirmed that all consolidates doesn’t significantly influence the color of the samples. Then, the mechanical character of the samples has demonstrated that the presence of the cellulose acetate has increased the resistance of the samples, even in the case of the aged samples. The efficacy of the treated samples to wet environment has confirmed that all the composites used as coating created a hydrophobic surface that has the role to protect the wood surface against long-term exposure to environmental changes. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index