Effect of Iron Oxide on the Protective Photochromism of African Padauk

African padauk is a tree whose wood is an excellent material for producing decorative items. The wood is susceptible to sunlight exposure and degrades severely, even after short exposures, which leads to discoloration. Ultraviolet irradiation is the main factor that produces discoloration. In this s...

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Main Authors: Chen Wang, Ye Qin, Fang Wang, Zhiping Wang, Anmin Huang
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Advances in Polymer Technology
Online Access:http://dx.doi.org/10.1155/2019/8698746
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author Chen Wang
Ye Qin
Fang Wang
Zhiping Wang
Anmin Huang
author_facet Chen Wang
Ye Qin
Fang Wang
Zhiping Wang
Anmin Huang
author_sort Chen Wang
collection DOAJ
description African padauk is a tree whose wood is an excellent material for producing decorative items. The wood is susceptible to sunlight exposure and degrades severely, even after short exposures, which leads to discoloration. Ultraviolet irradiation is the main factor that produces discoloration. In this study, chemical changes occurring on the wood surfaces were analyzed by Fourier transform infrared spectroscopy. The discoloration of the African padauk was mainly because of the photodegradation of lignin and extractives by ultraviolet radiation. Additionally, the inhibitory effect of different concentrations of red iron oxide coating was investigated. The results revealed that the chromatism ΔE⁎ was considerably reduced with the protection of iron oxide. However, the inhibition of the discoloration rate of the specimens covered with a film of red iron oxide increased with values reaching approximately 80%. The red iron oxide coating had a strong inhibitory effect on the discoloration of the African padauk.
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institution Kabale University
issn 0730-6679
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language English
publishDate 2019-01-01
publisher Wiley
record_format Article
series Advances in Polymer Technology
spelling doaj-art-7f1d1201adcb4dec8a3ce09b117124d82025-02-03T01:28:56ZengWileyAdvances in Polymer Technology0730-66791098-23292019-01-01201910.1155/2019/86987468698746Effect of Iron Oxide on the Protective Photochromism of African PadaukChen Wang0Ye Qin1Fang Wang2Zhiping Wang3Anmin Huang4Research Institute of Wood Industry, Chinese Academy of Forestry, Xiangshan Road 2, Haidian 100091, Beijing, ChinaResearch Institute of Wood Industry, Chinese Academy of Forestry, Xiangshan Road 2, Haidian 100091, Beijing, ChinaResearch Institute of Wood Industry, Chinese Academy of Forestry, Xiangshan Road 2, Haidian 100091, Beijing, ChinaResearch Institute of Wood Industry, Chinese Academy of Forestry, Xiangshan Road 2, Haidian 100091, Beijing, ChinaResearch Institute of Wood Industry, Chinese Academy of Forestry, Xiangshan Road 2, Haidian 100091, Beijing, ChinaAfrican padauk is a tree whose wood is an excellent material for producing decorative items. The wood is susceptible to sunlight exposure and degrades severely, even after short exposures, which leads to discoloration. Ultraviolet irradiation is the main factor that produces discoloration. In this study, chemical changes occurring on the wood surfaces were analyzed by Fourier transform infrared spectroscopy. The discoloration of the African padauk was mainly because of the photodegradation of lignin and extractives by ultraviolet radiation. Additionally, the inhibitory effect of different concentrations of red iron oxide coating was investigated. The results revealed that the chromatism ΔE⁎ was considerably reduced with the protection of iron oxide. However, the inhibition of the discoloration rate of the specimens covered with a film of red iron oxide increased with values reaching approximately 80%. The red iron oxide coating had a strong inhibitory effect on the discoloration of the African padauk.http://dx.doi.org/10.1155/2019/8698746
spellingShingle Chen Wang
Ye Qin
Fang Wang
Zhiping Wang
Anmin Huang
Effect of Iron Oxide on the Protective Photochromism of African Padauk
Advances in Polymer Technology
title Effect of Iron Oxide on the Protective Photochromism of African Padauk
title_full Effect of Iron Oxide on the Protective Photochromism of African Padauk
title_fullStr Effect of Iron Oxide on the Protective Photochromism of African Padauk
title_full_unstemmed Effect of Iron Oxide on the Protective Photochromism of African Padauk
title_short Effect of Iron Oxide on the Protective Photochromism of African Padauk
title_sort effect of iron oxide on the protective photochromism of african padauk
url http://dx.doi.org/10.1155/2019/8698746
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