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| Research on Bleaching Mechanism of Wheat Straw Chemi-mechanical Pulp |
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| DOI:10.11980/j.issn.0254-508X.2011.08.002 |
| Key Words:wheat straw chemi-mechanical pulp sodium borohydride peroxide bleaching lignin of wheat straw |
| Author Name | Affiliation | | 李红斌1,2 | 1.中国林业科学研究院林产化学工业研究所,江苏南京,210042;2.山东晨鸣纸业集团股份有限公司博士后工作站,山东寿光,262700 | | 房桂干1 | 1.中国林业科学研究院林产化学工业研究所,江苏南京,210042 | | 耿光林2 | 2.山东晨鸣纸业集团股份有限公司博士后工作站,山东寿光,262700 | | 邓拥军1 | 1.中国林业科学研究院林产化学工业研究所,江苏南京,210042 | | 李 萍1 | 1.中国林业科学研究院林产化学工业研究所,江苏南京,210042 | | 沈葵忠1 | 1.中国林业科学研究院林产化学工业研究所,江苏南京,210042 | | 焦 健1 | 1.中国林业科学研究院林产化学工业研究所,江苏南京,210042 | | 韩善明1 | 1.中国林业科学研究院林产化学工业研究所,江苏南京,210042 | | 张革仓2 | 2.山东晨鸣纸业集团股份有限公司博士后工作站,山东寿光,262700 | | 王 勇2 | 2.山东晨鸣纸业集团股份有限公司博士后工作站,山东寿光,262700 |
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| Abstract:Lignin structures in wheat straw materials, its chemi-mechanical pulps, the pulps bleached with alkaline H2O2 and the pulps treated by H2O2/NaBH4 were determined in this paper. The results showed that conjugated carbonyl content in the lignin of H2O2 bleached chemi-mechanical pulp decreases by 26.4%, conjugated carbonyl in the lignin of the pulp treated by NaBH4 further decreases by 70.0%. The chromophore in the lignin is broken by bleaching, which improves the pulp brightness. |
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