刚果12号桉的木材性质及制浆试验  

WOOD PROPERTIES AND PULPING EXPERIMENT OF EUCALYPTUS ABL NO.12

作　　者：蔡则谟[1] 

机构地区：[1]中国林业科学研究院热带林业研究所

出　　处：《林业科学》1996年第4期361-365,共5页Scientia Silvae Sinicae

基　　金：广东省林业厅资助

摘　　要：进行了５龄刚果１２号桉的木材性质和制浆试验。以胸高圆盘加权平均数为单元，平均导管直径９０μｍ，管孔数１６Ｎ／ｍｍ２；射线数１５Ｎ／ｍｍ；纤维长度０．８６８ｍｍ，壁厚２．９μｍ；组织比量（％）：导管１４．０，薄壁组织２９．８，纤维５６．２；基本比重０．５７７。研究了这些性质的径向变异性。木材强度中等。综纤维素含量７７．６２％，木素含量２５．０９％。烧碱－蒽醌法制浆试验表明，容易成浆，粗浆得率４６．９２％，漂浆白度７３．８％，纸片成型性良好，耐破指数４．５８ｋＰａ·ｍ２／ｇ，撕裂指数７．５３ｍＮ·ｍ２／ｇ。The tests of wood properties and pulping experiment were carries out with the 5-year-old Eucalyptus ABL No.12 grown in Guangdong province. With the weighted mean of the BH disc as the unit,the average values of the following properties were: 90μm of tangential diameter of vessels, 16N/mm2 of pores number, 15N/mm of rays number, 0. 868mm of fibre length, 2. 9 μm of fibre wall thickness, 14. 0 of vessels percentage, 29. 8 of parenchyma percentage,56. 2 of fibre percentage,and 0. 577 of basic specific gravity. The radial variation of these properties was investigated. The wood belonged to a medium class of strength, and contained 77. 62% of holocellulose and 25. 09% of lignin. A pulping experiment of alkali-AQ process showed that it was easy to pulp,with 46. 92% of yield of coarse pulp and 73. 8% of bleaching degree, and the sheet formation was good,with 4. 58kPa. m2/g of burst index and 7. 53mN. m2/g of tear index.

关 键 词：刚果12号桉 木材性质 制浆试验 

分 类 号：S781.42[农业科学—木材科学与技术] TS749.1[农业科学—林学]