摘要
对人工种植构树的化学成分、材性特点、纤维形态及制浆性能进行了研究。结果表明,人工种植构树韧皮部果胶含量较高,达11.67%;皮、杆的冷、热水抽出物及1%NaOH抽出物均比杨木高出几倍;韧皮部纤维平均长度为7.45 mm,而木质部仅为0.58 mm。木质部采用NaOH-AQ法制浆,KMnO4值19.6时,粗浆得率为49.7%;原浆KMnO4值16.6、有效氯用量8.0%时,浆料白度可达到65.7%ISO。木质部采用两段浸渍工艺制APMP,浆料白度能达到72.5%ISO,打浆度49°SR的浆料抄纸后的浆张裂断长为4.65 km。
The chemical composition, wood characteristic, fiber morphology and pulping perfonnance of plantation paper mulberry were studied. The results showed that the contents of Klason lignin and pectin of the bast were 12.0% and 11.7 %, respectively. The extraction contents of cool/hot water and 1% NaOH were several times higher than that of populus tomentosa. The fiber average length of the phloem is 7.45mm and the fiber average length of the xylem is 0.58 mm. The pulp yield is 49.7% when the xylem is cooked with NaOH-AQ process. 65.7%ISO brightness can be achieved when the pulp with KMnO4 value of 16.6 is bleached with 8.0% active chlorine, and the breaking length of the pulp is 6.03km. Adopting two impregnation stages, APMP with 72.5%ISO brightness can be produced by using the xylem as raw material, the breaking length of the pulp with 49°SR is 4.65km.
出处
《中国造纸》
CAS
北大核心
2006年第9期1-5,共5页
China Pulp & Paper
关键词
人工种植构树
化学成分
材性特点
纤维形态
制浆性能
plantation paper mulberry
chemical composition
wood characteristic
fiber morphology
pulping performance
