【摘要】 对芦苇碱性过氧化氢机械浆(APMP)和磺化化学机械浆(SCMP)的制浆性能进行了研究。测定了芦苇的化学成分,发现其综纤维素含量高,1%NaOH抽出物和戊聚糖含量低。通过正交试验优选出芦苇APMP和SCMP的适宜预处理工艺条件。结果表明,经过两段碱性过氧化氢预处理,然后磨浆,可制得白度达57.8%(ISO,以下同)、裂断长2.82 km、撕裂指数3.7 mN.m2/g的芦苇APMP。经过磺化处理,然后磨浆,可制得白度40.6%、裂断长3.48 km、撕裂指数达4.2 mN.m2/g的芦苇SCMP。芦苇SCMP经H2O2单段漂白,H2O2用量为2.0%(质量分数,以下同)时,成浆白度达51.3%,裂断长为3.81 km,撕裂指数4.6 mN.m2/g。更多还原

【Abstract】 Properties of alkaline peroxide mechanical pulp （APMP） and sulfonated chemi-mechanical pulp（SCMP） from reed were investigated, and the main chemical constituents of reed were determined.The results showed that reed used in this study has the characteristics of high cellulose content, and low contents of 1 %NaOH extractives and pentosan.Optimum pretreatment conditions of APMP and SCMP of reed were selected through orthogonal or conditional experiments.APMP experimental results showed that properties of reed APMP such as brightness 57.8 %（ISO）,breaking length 2.82 km and tear index（3.7 mN·m²/g） can be obtained after two-stage alkaline peroxide pretreatment.SCMP experimental results showed that brightness,breaking length and tear index of unbleached reed SCMP are 40.6 %（ISO）,3.48 km and 4.2 mN·m²/g,respectively.High brightness of 51.3 %（ISO）could be obtained when the pulp was further bleached with 2 % H₂O₂ under the optimum condition of single stage peroxide bleaching.更多还原