【摘要】 对我国现有的尾巨桉的纤维形态、化学组成进行了分析,并对尾巨桉硫酸盐法制浆、漂白及其抄纸性能进行了研究。通过正交实验分析得出,尾巨桉KP-AQ制浆较佳的蒸煮工艺条件为:用碱量15%-17%,硫化度20%-22%;升温时间100-110m in,保温时间90-110m in,最高蒸煮温度165-170℃;蒽醌用量0.1%,液比1∶5.5。采用D1EpD2短程序漂白,尾巨桉KP-AQ浆的最终白度达到89.5%,黏度比漂前下降91.0 mL/g。打浆度在46.0°SR左右时,尾巨桉KP-AQ浆各项物理性能指标较好,抗张指数79.5N.m/g,撕裂指数21.90mN.m2/g,耐折度709次,紧度0.55g/cm3。更多还原

【Abstract】 The fiber morphology and chemical components of E.urophylla×grandis were analyzed,as well as its pulping,bleaching and papermaking performances.The results obtained through orthogonal experiments showed that the best cooking conditions are: dosage of alkali 15%～17%,sulfidity 20%～22%,dosage of antraquinon 0.1%,time to maximum temperature 100～110min,retention time at maximum temperature 90～110 min,maximum temperature 165～170℃,liquor to wood ratio 5.5∶1.The brightness of the pulp reaches 89.5% when D1EpD2 bleaching sequence is adopted,and the viscosity decreases from 1096 mL/g to 905 mL/g by 91.0mL/g.The paper properties are quite good,tensile index is 79.5N·m/g, tear index is 21.90mN·m2/g, folding endurance is 709 times,density is 0.55g/cm3 when the beating degree is around 46°SR.更多还原