The Effect of UV Irradiation on the Stability of Coated Fir Wood Samples-Reference-Cited by-同舟云学术

The Effect of UV Irradiation on the Stability of Coated Fir Wood Samples

Published:2022-10-01 Issue:19 Volume:18 Page:8-14
ISSN:2537-3161
Container-title:Scientific Bulletin of Valahia University - Materials and Mechanics
language:en
Short-container-title:

Author:

Iancu Lorena¹,Grigorescu Ramona Marina¹,Ion Rodica-Mariana¹²,David Madalina Elena¹²,Slamnoiu-Teodorescu Sofia³

Affiliation:

1. National Institute for Research and Development in Chemistry and Petrochemistry – ICECHIM , 202 Splaiul Independentei, 060021 - Bucharest , Romania

2. Valahia University from Targoviste , Doctoral School of Materials Engineering , 13 Aleea Sinaia, 13004 - Targoviste , Romania

3. Valahia University from Targoviste , Institute of Multidisciplinary Research for Science and Technology , 13 Aleea Sinaia, 13004 -Targoviste .

Abstract

Abstract The aim of the paper consists in assessing the protection of fir wood samples against UV degradation by using polyacrylates and titanium dioxide as absorber. The irradiation was achieved for 648 hours, considered as about 2 years of weathering. Colorimetric, water absorption, and mechanical investigations were performed on samples before and after irradiation. The structural changes were evidenced by FTIR spectroscopy. Small changes in color for coated wood samples are observed after maximum 648 h of UV treatment, with the best results obtained for the specimen covered with Paraloid B72-TiO2. Higher compressive strengths were observed for the polymer-TiO2 coatings, in correlation with a smaller water absorption capacity of the studied samples. FTIR revealed shifted peaks with increased intensities as proof of structural changes produced by irradiation of lignin and polyacrylates. The results highlight that Paraloid B72 and Paraloid B67 mixed with TiO2 can be used as efficient UV protective coatings for fir wood.

Publisher

Walter de Gruyter GmbH

Subject

Pharmacology (medical)

Link

https://www.sciendo.com/pdf/10.2478/bsmm-2022-0012

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1. B72 vs. Paraloid B67 Materials for Conservation of Wood Artifacts;Scientific Bulletin of Valahia University - Materials and Mechanics;2023-10-01