Colour changes of Brazilian eucalypts wood by natural weathering

被引：23

作者：

Mattos, B. D. ^{[1
]}

de Cademartori, P. H. G. ^{[2
]}

Lourencon, T. V. ^{[1
]}

Gatto, D. A. ^{[1
]}

机构：

[1] Univ Fed Pelotas, POB 354, BR-96010900 Pelotas, Brazil

[2] Univ Fed Parana, BR-80210170 Curitiba, Parana, Brazil

来源：

INTERNATIONAL WOOD PRODUCTS JOURNAL | 2014年 / 5卷 / 01期

关键词：

Photodegradation; Colorimetry; Colour stabilisation; Wood technology;

D O I：

10.1179/2042645313Y.0000000035

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

This study aimed to characterise wood discolouration of three Brazilian eucalypt species exposed to the action of natural weathering in two distinct places. To achieve this, tests were performed at an exposed outdoor site and under a forest canopy; both located in the state of Rio Grande do Sul, Brazil. Colorimetric measurements were performed every 45 days during the period of 1 year in order to obtain the parameters L*, a*, b*, C* and h*. The main results showed significant darkening in the first 4 months and subsequently increased the greyish colour. Colour variations were observed between species, field and exposure time in service.

引用

页码：33 / 38

页数：6

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