面板浸酚樹脂合板供地板材料使用可行性探討（II）靜曲、衝擊及硬度性質

Feasibility Study on Flooring Materials Using Plywood Overlaid with Phenolic Resin Impregnated Veneer (II) Static Bending, Impact and Hardness Characteristics

王松永(Song-Yung Wang) ； 劉光甫(Kuang-Fuu Liou)

《林產工業》 12卷1期 (1993/03) Pp. 18-27

https://doi.org/10.6561/FPI.1993.12(1).2

摘要

本報告係探討利用浸酚化粧單板與台板合板進行一次熱壓所製成之合板供為地板材料使用之可行性。化粧單板使用紅檜，栓木及紅櫟木等三種。面板區分為浸酚與無浸酚樹脂，共製成九類三十三種合板，進行其靜曲、衝擊及硬度試驗，其結果歸納於次；（1）面板浸酚樹脂對合板靜曲強度之改善效應較PU塗裝處理為大，而且會顯示出靜曲強度異方性，此異方性除受單板構成比，即t_(//)／t_⊥影響外，面板之單板厚度的影響為最顯著。（2）本實驗之合板如當作地板材料使用，甚跨距間支點距離為30 cm，合板厚度與寬度各為2 cm及10 cm條件時，則跨距中央至少可支撐集中荷重，面板木理方向與跨距方向成平行者為432.9~728.9 kgf，面板木理方向與跨距方向成垂直者為265.8-321.8 kgf。（3）面板浸酚樹脂與單板構成比對合板衝擊彎曲吸收能量均有影響，但較不明顯。（4）面板浸酚樹脂與塗裝PU對合板之硬度均有顯著改善效應，但其值會隨熱壓之壓力不同而異，各為36.8%~207.1%及0%~60%。（5）熱壓之壓力對面板浸酚樹脂合板之強度性質改善效應有硬度＞靜曲性質＞衝擊彎吸收能量之趨勢。

關鍵字

化粧單板浸酚合板 ； 靜曲強度 ； 衝擊彎曲吸收能量 ； 硬度 ； 地板材料

並列摘要

The main purpose of this study was to investigate the feasibiIity of using plywood hot-press overlaid with one layer of decorative veneer impregnated with PF resin for flooring materials. Taiwan red cypress (Chamaecyparis formosensis), Sen (Kalopanax sp. ) and Red oak (Ouercus sp. ) were used as the veneer materials and the face and back of veneers were either unimpregnated or impregnated with alcohol soluble phenolic resin. In total, Nine groups including thirty-three kinds of plywoods with different construction were prepared for this dtudy. The static bending, impact end hardness characteristics of these specimens were studied; and the experimental results are summarized as follows: (1) The improving effect on the bending strength of plywoods were greater for the PF impreghated face veneers than those with PU (polyurthane) coated face veneers. However , the bending strength showed an anisotropic characteristics , it was not only influenced by the proportion of veneer construction，(t_(//)/t_⊥), (t_(//) or t_⊥ represented the thickness of veneer, it's grain direction parallel or perpendicular to the span direction, respectively), but also significantly affected by the thickness of face veneers. (2) When the plywoods were used as the flooring materials, the conditions of flooring construction were, 30 cm for the distance between two supports, 2 cm and 10 cm for the thickness and width of plywoods, respectively, The center of span could support a concentrated load of at least 432.9 kgf~728.9 kgf and 265.8 kgf~321.8 kgf for the plywoods with the grain direction of face veneer parallel to the span direction(_(//)) and those perpendicular ones, respectively. (3) The impact bending absorption energy was influenced by the face veneer impregnated with phenolic formaldehyde resin and the construction of veneer, but the effect was not significant. (4) The hardness properties of plywoods could be improved significantly by the face veneer impregnated with PF resin and coated with PU resin. However, the improving effects varied with the pressure of hot press, they were 36.8%-207.1% and 0%-60%, respectively. (5) The improving effect on the strength of face veneer impregnated with PF resin by the pressure of hot-press showed the following tendency: hardness＞bending strength＞impact bending absorption energy.

並列關鍵字

Plywood overlaid with PF impregnated veneer ； bending strength ； impact bending absorption energy ； hardness ； flooring material