| 稻草氧碱浆疏解特性的研究 |
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| 引用本文： | 邵思成,吴初柱,陈克利.稻草氧碱浆疏解特性的研究[J].林产化学与工业,2016(5):107-112. |
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| 作者姓名： | 邵思成 吴初柱 陈克利 |
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| 作者单位： | 昆明理工大学 化学工程学院,云南 昆明,650500 |
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| 基金项目： | 国家自然科学基金资助项目(51363013) |
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| 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。
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| 关 键 词： | 稻草氧碱浆 杂细胞 滤水性能 疏解 灰分 硅 |
Deflaking Characteristics of Rice Straw Alkali-oxygen Pulp |
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| Abstract: | The effects of deflaking on the drainability, fiber morphology as well as the ash and silica contents of rice straw alkali-oxygen pulp were investigated.The results indicated that the beating degree of the pulp without non-fibrous cells fell around 10°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 3.7 percentage 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. |
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| Keywords: | rice straw alkali-oxygen pulp non-fibrous cells drainability deflaking ash silica |
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