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題名 | 速生樹種木材製造粒片板之研究(IV-3):柳杉心邊材對異氰酸鹽膠粒片板性質之影響 |
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作者姓名(中文) | 陳載永; 吳俊萍; | 書刊名 | 農林學報 |
卷期 | 42:2 1993.06[民82.06] |
頁次 | 頁1-8 |
分類號 | 474.5 |
關鍵詞 | 心材與邊材; 木材; 柳杉; 異氰酸鹽膠; 粒片板; Sapwood; Heartwood; Isocyanate glue; Particleblard; |
語文 | 中文(Chinese) |
中文摘要 | 以柳杉疏伐中小徑木之心材及邊材當作粒片材料。而製造異氰酸鹽粒片 板。其靜曲強度、內聚強度及木螺絲釘保持力均隨粒片板密度增加而上升,心材 粒片板僅於靜曲強度呈較高之現象,其他兩性質之差異不明顯。厚度膨脹率亦隨 粒片板密度增加而增大.吸水率則反之;尺寸安定性上之線性總變化及厚度總變 化,亦均隨粒片板密度增加而增加。當心材與邊材原料對粒片板線性安定性影響 不顯著時.而卻在粒片板厚度安定性上,以心材粒片板較佳。 |
英文摘要 | The sap. and heartwood of Japanese fir from thinnings middle and small diameter logwere separated to prepare as particles, which bonded with isocyanate glue to made particleboards. Their MOR @ IB and screw holding strength increased with the density increased.particleboard made from heartwood showed a litter higher MOR than from sapwood only. theanother two properties showed difference no significant. Thickness swelling also increased withthe density increased, but the water absorption showed the reverge; For the dimensional stability of the total linear change and total thickness change increased with the density increased. while the sapwood and heartwood was affected the linear stability of particleboard nosignificant, but the thickness stability of particleboard from heartwood showed better. |
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