Physico-mechanical properties of oriented strand boards of Eucalyptus grandis and Cupressus glauca

被引：0

作者：

Arakaki Okino, Esmeralda Yoshico ^{[1
]}

Teixeira, Divino Eterno ^{[1
]}

de Souza, Mario Rabelo ^{[1
]}

Eduardo Santana, Marcos Antonio ^{[1
]}

de Sousa, Maria Eliete ^{[1
]}

机构：

[1] Serv Florestal Brasileiro SFB, Lab Prod Florestais, BR-70818900 Brasilia, DF, Brazil

来源：

SCIENTIA FORESTALIS | 2008年 / 36卷 / 78期

关键词：

Oriented strand board; OSB; Eucalyptus; Cypress; Urea- and phenol-formaldehyde; Physical properties; Mechanical properties;

D O I：

暂无

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

The objective of this research was to evaluate the technical feasibility of the use of Eucalyptus grandis W. Hill ex Maiden and Cupressus glauca Lam. wood to manufacture oriented strand boards (OSB). Boards of three layers with the ratio of 1:2:1 were bonded with 5% and 8% of urea- (UF) and phenol-formaldehyde (FF) resins, based on dry weight of particles and with an apparent nominal specific density of 0.75 g/cm(3). As for eucalyptus OSB boards, they presented mechanical properties above the value required by the standard CSA O437.0, class O-2, except for the rupture modulus, parallel alignment, bonded with urea-formaldehyde adhesive. All mechanical properties of cypress boards were higher than Eucalyptus boards and also higher than Canadian standards requirements. All the boards presented low dimensional stability and after 24h swelling in water immersion, were not up to the Canadian norms CSA 047, class O-2. Among all treatments studied, 8% FF presented the best performance. Eucalyptus and cypress woods have shown to be a feasible alternative as raw material for OSB panels manufacturing.

引用

页码：123 / 131

页数：9

共 22 条

[1] American Society for Testing and Materials (ASTM), 2011, ASTM C496/C496M-11
[2] [Anonymous], 1999, ANN BOOK ASTM STAND, V03.02
[3] ANSI - AMERICAN NATIONAL STANDARD, 1993, A208193 ANSI NAT PAR
[4] ASTM - AMERICAN SOCIETY FOR TESTING AND MATERIALS, 1967, ANN BOOK ASTM STAND
[5] BOTELHO G.M.L., 1997, CARACTERIZACAO QUIMI
[6] Brumbaugh J., 1960, Forest Products Journal, V10, P243
[7] COUVEIA E N., 2001, THESIS U FEDERAL VIC
[8] CSA-CANADIAN STANDARDS ASSOCIATION, 1993, 043793 CSA OSB
[9] Gouveia Fernando Nunes, 2003, Rev. Árvore, V27, P365, DOI 10.1590/S0100-67622003000300013
[10] GOUVEIA F.N., 1999, UTILIZACAO MADEIRA E

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