稻草氧碱浆疏解特性的研究  

Deflaking Characteristics of Rice Straw Alkali-oxygen Pulp

作　　者：邵思成 吴初柱 陈克利[1] 

机构地区：[1]昆明理工大学化学工程学院,云南昆明650500

出　　处：《林产化学与工业》2016年第5期107-112,共6页Chemistry and Industry of Forest Products

基　　金：国家自然科学基金资助项目(51363013)

摘　　要：对稻草经氧碱蒸煮后进行疏解,研究疏解对稻草氧碱浆滤水性能的影响,并分析纤维质量、浆中灰分及硅含量的变化。结果表明:去除杂细胞后浆料的打浆度能降低近10°SR,疏解对浆料滤水性能的下降作用明显,同时疏解对纤维细胞的变形作用影响了浆料的打浆度,而杂细胞的存在与否对疏解浆料的打浆度影响不明显。与除杂浆料相比,未除杂浆料在疏解过程中细小纤维组分增加3.7个百分点,未除杂浆的扭结指数、卷曲指数、纤维宽度以及所含灰分中的硅含量随疏解而下降。The effects of deflaking on the drainability,fiber morphology as well as the ash and silica contents of rice straw alkalioxygen pulp were investigated. The results indicated that the beating degree of the pulp without non-fibrous cells fell around10°SR. Deflaking played a negative role in the drainability of the pulp. However,the development trend of the beating degree originated from deflaking depended marginally on non-fibrous cells,but greatly on pulp fibers. This resulted from the fibrous deformation sensitive to deflaking. On the other hand,it was found that owing to the presence of a large quantity of non-fibrous cells,the deflaking could increase the content of fines component in the straw pulp with non-fibrous cells markedly by 3. 7percentage points. Also,it presented an ever-decreasing tendency in terms of kink index,curl index,width and silica proportion in its ash. This was opposite to the behavior of the pulp without non-fibrous cells.

关 键 词：稻草氧碱浆 杂细胞 滤水性能 疏解 灰分 硅 

分 类 号：TQ35[化学工程]