浸酚樹脂處理對柳杉及杉木之尺寸安定性與強度性質的影響

The Effects of Phenolic-resin Impregnation Treatments on the Dimensional Stability and Strength Properties of Japanese cedar and China-fir

王松永(Song-Yung Wang) ； 莊世滋(Shih-Tzu Chuang)

《林產工業》 14卷4期 (1995/12) Pp. 528-538

https://doi.org/10.6561/FPI.1995.14(4).3

摘要

本報告係探討經低毒性酚樹脂（PF）含浸處理柳杉及杉木材，於高溫熱壓後，對其尺寸安定性及機械強度特性的改善效應。結果歸納如次：（1）柳杉材之PF吸收率會大於杉木材，但其厚度壓縮率則柳杉材會小於杉木材。（2）未浸酚樹脂試材浸水24小時後之浸水厚度膨脹率會大於浸酚樹脂試材。柳杉為1.66% ＞ 1.37%，杉木為1.78% ＞ 1.35%。（3）浸酚樹脂試材浸水處理後，各種強度均會較其氣乾材為低，此意味著浸酚樹脂試材仍保持有木材原有特性。（4）浸酚樹脂試材之各種強度值均會較未浸酚樹脂試材為大。就氣乾材而言，其改善效應以硬度最佳，靜曲與縱向壓縮則相差不多。就濕潤材而言，則其改善效應是以靜曲性質為佳，其次為硬度，縱向壓縮強度。

關鍵字

造林木柳杉及杉木 ； 浸酚樹脂材 ； PF吸收率 ； 厚度壓縮率 ； 尺寸安定性 ； 強度性質

並列摘要

The main purpose of this study was to investigate the effects of low toxic phenolic-resin impregnation treatment with high temperature hot press on the dimensional stability and mechanical properties of Japanese cedar and China-fir. The experimental results are summarized as follows: (1) The absorbed percentage (%) of phenolic-resin (PF) for Japanese cedar wood was greater than that of China-fir wood. However, the pressing percentage (%) in thickness for Japanese cedar wood was less than that for China-fir wood. (2) The swelling percentage (%) in thickness for untreated wood after dipping in water for 24 hours was greater than that of PF-impregnation treated wood. They were 1.66% ＞ 1.37% for Japanese cedar, and 1.78% ＞ 1.35% for China-fir, respectively. (3) The strength of PF- impregnation treated wood in wet condition was less than that of air-dried condition, it means that the PF-impregnation treated wood also maintained the original characteristics of wood. (4) The strength of PF-impregnation treated wood was greater than that of untreated wood (control group). The improvement efficiency showed a decreasing trend as follows: For air-dried wood; the hardness showed best, the static bending and compression were same results. for wet wood, the order was: static bending ＞ hardness ＞ compression strength.

並列關鍵字

plantation timber of Japanese cedar and China-fir ； PF-impregnation treated wood ； absorbed percentage of phenolic-resin and pressing percentage ； dimensional stability ； strength property.