摘要
探讨了NaOH和H2O2对芦苇机械浆的物理性质的影响,对苇片(浆)化学组分在制浆过程的变化进行了考察。实验结果表明,各化学组分在制浆过程中发生了较大的变化,其中1%NaOH抽出物由原料的29.50%下降到成浆的17.45%,苯醇抽出物由3.11%下降到1.06%,木素由24.36%下降到20.16%,戊聚糖由19.76%下降到15.61%。同时,芦苇APMP的白度不断上升,达到55.9%ISO,而得率逐渐下降,最后纸浆得率为79.9%。
The influences of alkaline peroxide impregnation on APMP pulp properties and chemical composition of reed in course of chemi-mechanical processing were investigated. The results showed that the content of chemical composition of reed changed significantly in the course of pulping. 1% NaOH extractives from 29.50% in the raw material decreased to 17.45% in the resultant pulp after chemi-mechanical pulping. Correspondingly, alcohol benzene extractives decreased from 3.11% to 1.06%, lignin content from 24.36% to 20.16%, and pentosan content from 19.76% to 15.61% respectively. With the change of the chemical compositions in the course of pulping,pulp brightness and yield also changed greatly. At the end, pulp brightness reached 55.9% ISO while pulp yield decreased to 79.95%.
出处
《中国造纸》
CAS
北大核心
2005年第8期27-30,共4页
China Pulp & Paper
关键词
芦苇
碱性过氧化氢预处理
化学组分
reed
alkaline peroxide impregnation
chemical compositions
