摘要
以美国花旗松锯材剩余物为原料,对其化学组分、纤维形态以及制浆造纸性能进行测定与分析.结果表明:冷水抽提物、热水抽提物、1%NaOH抽提物的含量分别为13.82%、17.04%和23.95%;klason木质素含量为26.57%;综纤维、α纤维素、半纤维素的含量分别为75.44%、50.65%和24.79%;戊聚糖含量为8.59%.纤维的平均长度、平均宽度、腔径、双壁厚分别为3263、17.68、11.14、6.51μm;纤维的长宽比和壁腔比分别为184和0.63;纤维的结晶度为50.85%.制浆造纸的最佳方法是硫酸盐蒽醌法.最佳条件为用碱量23%、硫化度28%、保温时间210 min、蒽醌用量为0.1%.此时,残碱为5.61 g·L-1;粗浆得率为45.34%,卡伯值为17.79,特性粘度为1039.30 mL·g-1,纸张的抗张强度为76.17 Nm·g-1,撕裂指数为24.62mN·m2·g-1,耐破指数为5.32 kPa·m2·g-1,综合强度为20.13.
Lumber residue of Pseudotsuga menziesii was selected, and its chemical composition, fiber morphology and pulping andpapermaklng performance were measured. It was observed that the content of cold water extractive, hot water extractive and 1%NaOH extractive was 13.82%, 17.04% and 23.95%, respectively. The content of klason lignin was 26.57%. The content of halo-cellulose, ct cellulose, hemicellulose and pentosan was 75.44%, 50.65%, 24.79% and 8.59%, respectively. The average fiberlength, the fiber width and the ratio of them were 3263 pin, 17.68 pan and 184. The double cell wall thickness, the lumen diame-ter, and the ratio of them were 6.51 p.m, 11.14 pan and 0.63. The percent of fiber crystallinity was 50.85%. The best pulpingmethod was regarded as sulphate-anthraquinone. The optimum conditions of pulping were alkali 23%, sulfidity 28% and holdingtime 210 rain. Under these conditions, the residual alkali was 5.61 g ·g-1, and the pulp yield, the kappa number, the intrinsicviscosity was 45.34%, 17.79 and 1039.30 mL · g-1 respectively. The tensile strength, tear index, bursting strength index and thecomprehensive strength of the paper was 76.17 Nm · g-1, 24.62 Nm · m2 ·g-1, 5.32 kPa ·g-1 and 20.13, respectively.
出处
《福建农林大学学报（自然科学版）》
CSCD
北大核心
2014年第3期327-331,共5页
Journal of Fujian Agriculture and Forestry University:Natural Science Edition
基金
安徽省自然科学基金资助项目(1208085MC37)
关键词
美国花旗松锯材剩余物
化学组分
纤维形态
制浆造纸
lumber residues of Pseudotsuga menziesii
chemical composition
fiber morphology
pulping and papermaking
