臺灣杉與玫瑰桉之醇類製漿Ⅰ.製漿與紙漿性質

Alcohol Pulping of Plantation Taiwania and Eucalyptus Part Ⅰ. Pulping and Pulp Properties

谷雲川(Yun-Chuan Ku) ； 王益真(I-Chen Wang) ； 郭夢麟(Mon-Lin Kuo)

《林業試驗所研究報告季刊》 8卷3期 (1993/09) Pp. 169-176

https://doi.org/10.7075/BTFRI.199309.0169

摘要

臺灣杉與玫瑰桉分別以50%乙醇水溶液及含1.5N氫氧化鈉的50%甲醇水溶液製漿。乙醇製漿係以180℃之最高溫蒸煮3小時，而鹼性甲醇製漿則在150℃之最高溫蒸煮2.5小時。結果顯示這兩種製漿法能成功地煮出玫瑰桉漿而對臺灣杉製漿效果不佳。鹼性甲醇製漿法的木質素溶解選擇性比乙醇法高，因此其紙漿收率較高，同時殘餘木質素含量也較低。玫瑰桉的鹼性甲醇漿的品質遠超過其乙醇漿，玫瑰桉的鹼性甲醇漿收率比傳統牛皮漿高出8%，而其各種強度，尤其是撕力，與牛皮漿相等。

關鍵字

臺灣杉 ； 玫瑰桉 ； 有機溶劑製漿 ； 乙醇法 ； 鹼性甲醇法 ； 脫木質素 ； 紙漿收率 ； 紙漿性質

並列摘要

Taiwania (Taiwania cryptomerioides) and eucalyptus (Eucalyptus grandis) chips were pulped with either a 50% aqueous ethanol solution or a 50% alkline aqueous methanol solution containing l.5N NaOH. The ethanol pulping was carried out at the maximum temperature of 180°C for 3 hours, and the alklaine methanol pulping was carried out at the maximum temperature of 150℃ for 2.5 hours. It was found that both methods could be successfully used to pulp eucalyptus but not taiwania. The alkaline methanol pulping showed a much better selectivity in delignification than the ethanol pulping did, resulting in a higher pulp yield and lower residual lignin content in the alkaline methanol pulp. The alkline methanol eucalyptus pulp was far superior than the ethanol eucalyptus pulp. The pulp yield of alkaline methanol eucalyptus pulp exceeded that of conventional kraft pulp by 8% while had stregth properties, especially tear strength, equivalent to those of the conventional kraft pulp of the same species.

並列關鍵字

Taiwania ； eucalyptus ； organosolv pulping ； delignification ； aqueous ethanol ； alkaline methanol ； pulp yield ； pulp properties