新疆博斯腾湖芦苇特性及其APMP制浆研究

Characteristics of the Reed from Bosten Lake of Xinjiang Autonomous and APMP Pulping of the Reed

测定了新疆博斯腾湖芦苇的纤维形态和化学组成,发现其纤维平均长度大于其他产地的芦苇,综纤维素含量高,1%NaOH抽出物和戊聚糖含量低。探讨了NaOH用量、H2O2用量、挤压预处理及磨浆过程对新疆博斯腾湖芦苇APMP浆料性能的影响,优选出芦苇APMP制浆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,然后磨浆至打浆度64°SR时,可制得白度57.8%ISO、裂断长2.82km、撕裂指数3.7 mN.m2/g的芦苇APMP。

The fiber morphology of the reed from Bosten Lake of Xinjiang Autonomous Area was investigated in the paper, the main chemical compositious were determined. The resuhs showed that the average fiber length of reed of Bosten Lake is longer than that of other samples from other areas. In addition, the reed used in this study has the characteristics of higher cellulose content and less ash content, less 1%NaOH extractives content and less pentosan content. The influences of alkaline peroxide impregnation on pulping properties and chemical composition of the reed were discussed. APMP experimental results showed that the reed APMP with brightness 57.8%ISO, breaking length 2.82km and tear index 3.7naN·m^2/g can be obtained after two-stage alkaline peroxide pretreatment.