关键词：
林产化学;欧美杨107;化学组成;纤维形态;制浆性能
摘 要：
为给欧美杨107应用空间的扩大提供理论依据,对其木材的化学组成成分、纤维形态、制浆性能及纸张的物理指标进行了测定分析。结果表明:欧美杨107的综纤维素含量为81.07%,硝酸-乙醇纤维素含量为48.59%,木质素含量为21.08%,1%NaOH抽提物含量为19.39%;欧美杨107的纤维平均长度为1 171μm,长宽比为57.54,壁腔比为0.56,且纤维长度呈现正态分布趋势;在保温时间60 min,硫化度24%,蒽醌用量0.1%的条件下,对于未漂浆而言,欧美杨107硫酸盐-蒽醌法制浆工艺条件为14%的用碱量,最高温度为168℃;对于漂白浆而言,欧美杨107的制浆工艺条件为16%的用碱量,最高温度168℃;在相同的制浆条件下,用碱量为14%时的纸张综合强度指数较用碱量16%时高。
译 名：
Pulping Properties of Populus×euramericana cv. ′Neva′
作 者：
ZHANG Li-ping,GAO Hui,NIU Min(School of Forestry & Landscape Architecture,Anhui Agricultural University,Hefei 230036,Anhui,China)
关键词：
forest chemistry;Populus×euramericana cv.′Neva′;chemical composition;fiber morphology;pulping properties
摘 要：
In order to provide theoretical basis for enlarging application field of Populus×euramericana cv.′Neva′,chemical components,fiber morphology and pulping properties of wood and physical properties of paper were determined and analyzed.The results showed that holocellulose content,cellulose content,lignin content and 1% NaOH extractive content in Populus×euramericana cv.′Neva′ wood were 81.07%,48.59%,21.08% and 19.39% respectively.Average length,ratio of length to width and ratio of double wall thickness to lumen diameter of fiber were 1 171 μm,57.54 and 0.56 respectively,and fiber length showed normal distribution.In the KP+AQ pulping techniques,14% alkali and the maximum cooking temperature 168 ℃ were optimum process conditions for unbleached pulp under the conditions of holding time for 60 min,sulphidity 24% and anthraquinone 0.1%,and 16% alkali and the maximum cooking temperature 168 ℃ were best for bleached pulp.Under the same conditions,comprehensive strength index of paper was higher during pulping using 14% alkali than that during pulping using 16% alkali.
