3層配向性パーティクルボードの材質に及ぼす層構成比の影響(<小特集>木質材料小特集)

概要

論文の詳細を見る
Three-layer board (OR-board) having flake-type oriented particles (average alignment angle(AAA):10.7deg.) as the faces and strand-type random-oriented particles as the core, cross-oriented three-layer board (CO-board) in which the core consists of strand-type particles oriented (AAA:33.9deg.) perpendicular to the direction of the oriented face layer, and three-layer board (RR-board) having random-oriented face and core partocles and dimensional stability of the boards were investigated.Bending properties in the oriented direction of the OR-board increased with an increase in FW and the ratio of parallel-to-perpendicular (‖/⊥) value for modulous of rupture (MOR) and modulus of elasticity (MOE) of OR-board with the FW of 60 percent was about 5 and 4, respectively.Bending properties of the CO-board with the FW of 15 percent corresponded to those of the RR-board. MOE values of the three-layer board estimated from the thickness and MOE of the individual layer were in good agreement with expermental values under MOE of about 50×10^3kgf/cm^2.The ‖/⊥ ratio for linear expansion of OR-and CO-doard with the FW of 60 percent was 3.8 and 2.9, respectively.
社団法人日本材料学会の論文
1990-09-15