机构地区: 山东轻工业学院
出 处: 《中华纸业》 2009年第20期62-65,共4页
摘 要: 对混合阔叶木进行了不同H因子下硫酸盐制浆性能探讨,并优化了硫酸盐制浆工艺条件。结果表明:混合阔叶木较佳制浆条件为蒸煮H因子不低于800、用碱量16%~20%、蒸煮温度165℃,此条件下,纸浆得率和卡伯值较理想,蒸煮结果较好。蒸煮H因子900、用碱量16%、蒸煮温度165℃时,纸浆得率达最高值44.27%,纸浆强度性能指标较好,裂断长高达8.18km、耐破指数4.81kPa·m2/g、撕裂指数12.7mN·m2/g。但纸浆白度仅为25.8%,卡伯值26.4。高H因子和低用碱量的制浆工艺,可得到较高强度性能指标的纸浆。 The kraft pulp properties of mixed hardwood under different H factor were discussed and the optimization of kraft pulping processing conditions was also made. The results showed that: good pulp properties can be got under the conditions of H factor more than 800, the dosage of alkali ranging from 16%~20%, the temperature 165℃. Pulp strength properties is the best when H factor is 900, effective alkali dosage 16%. Pulp yield, breaking length, bursting strength and tearing index can reach 44.27%, 8.18km, 4.81 kPa^m2/g and 12.7mNom^2/g respectively. But pulp brightness is only 25.8%ISO and kappa number 26.4. The kraft pulp with better strength properties can be obtained in pulping conditions at high H factor and low dosage of effective alkali.