An in-depth study of early colour change due to simulated accelerated sunlight exposure in Scots pine (Pinus sylvestris).

Sharratt, Victoria, Hill, Callum A S and Kint, Darwin (2009) An in-depth study of early colour change due to simulated accelerated sunlight exposure in Scots pine (Pinus sylvestris). Polymer Degradation and Stability, 94 (9). pp. 1589-1594.

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A detailed study of early colour change in Scots pine (Pinus sylvestris) due to accelerated simulated sunlight exposure was undertaken focusing on the 1st 24 hours of change. Colour changes were monitored with a Datacolor check spectrophotometer and compared with a set of controls. Measurements on both samples and controls were performed hourly for the 1st 24 hours and there after daily until 168 hours’ exposure with extra measurements at 200, 350 and 500 hours. A subset of samples was extracted prior to exposure to check the effects of any colour change due to the presence of extractives. Data was analysed using the reflectance spectra (400-700nm) as well as the CIE-L*a*b* system and ΔE. The majority of colour changes were found to occur within the 1st 24 hours. This was unaffected by the removal of extractives from the wood and was independent of temperature.

Item Type: Article
Electronic ISSN: 0141-3910
Additional Information: This research is part of a project funded by Akzo Nobel Decorative Paints. The authors would like to thank Akzo Nobel for their assistance in this research.
Uncontrolled Keywords: Scots pine; Pinus sylvestris; sunlight exposure; colour change; photodegradation; reflectance spectra;
University Divisions/Research Centres: Faculty of Engineering, Computing and Creative Industries > School of Engineering and the Built Environment
Dewey Decimal Subjects: 500 Science > 580 Plants (Botany) > 582 Plants noted for characteristics & flowers > 582.16 Trees
500 Science > 580 Plants (Botany) > 585 Gymnosperms; conifers
Library of Congress Subjects: Q Science > QK Botany
Item ID: 3586
Depositing User: Professor Callum Hill
Date Deposited: 01 Dec 2009 15:06
Last Modified: 09 Oct 2014 15:51

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