| 表面活性剂强化的氧脱木素的研究 |
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| 引用本文： | 王习文,詹怀宇,何为,李兵云,徐莉莉.表面活性剂强化的氧脱木素的研究[J].中国造纸学报,2003,18(2):43-46. |
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| 作者姓名： | 王习文 詹怀宇 何为 李兵云 徐莉莉 |
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| 作者单位： | 华南理工大学制浆造纸工程国家重点实验室,广州,510640 |
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| 基金项目： | 国家自然科学基金(2 0 1 76 0 1 5)，教育部博士点基金(2 0 0 0 0 56 1 0 1)资助项目 |
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| 摘 要： | 氧脱木素是TCF漂白和大部分ECF漂白的重要组成部分。为了提高氧脱木素率，尝试在氧脱木素中加入4种不同类型的表面活性剂，结果发现：阴离子型表面活性剂和非离子．阴离子复合型表面活性剂能有效地提高木素脱除率，且纤维粘度的损失不大，而阳离子型表面活性剂对脱木素有负面作用。当阴离子表面活性剂用量为1％时，木素脱除率从28．7％提高到51．5％，白度提高了8．83％ISO。纤维的SEM观察表明，表面活性剂强化的氧脱木素浆的纤维更为柔软润胀，部分分丝，暴露出更多的S2层。表面活性剂强化的氧脱木素和酶漂段、H2O2漂白结合的TCF漂白流程可将麦草烧碱．AQ浆漂到80％ISO以上的白度，而且浆料有很好的强度。
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| 关 键 词： | 氧脱木素 TCF漂白 白度 ECF漂白 H2O2漂白 纤维 麦草 阳离子型表面活性剂 烧碱 阴离子型表面活性剂 |
| 文章编号： | 1000-6842(2003)02-0043-04 |
| 修稿时间： | 2003年7月18日 |
Surfactant Reinforced Oxygen Delignification |
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| Wang Xiwen,Zhan Huaiyu He Wei Li Bingyun Xu Lili.Surfactant Reinforced Oxygen Delignification[J].Transactions of China Pulp and Paper,2003,18(2):43-46. |
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| Authors: | Wang Xiwen Zhan Huaiyu He Wei Li Bingyun Xu Lili |
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| Affiliation: | Wang Xiwen * Zhan Huaiyu He Wei Li Bingyun Xu Lili |
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| Abstract: | Oxygen delignification is widely applied in TCF bleaching to m ee t stringent environmental regulation worldwide In this study, in order to impro ve oxygen delignification efficiency,four surfactants were selected and applied to oxygen delignification It was found that anionic surfactant and non-ionic -a nionic complex surfactant could efficiently improve the delignification when ani onic surfactant dosage was 1%,the delignification rate increased from 28 7% to 51 5% and brightness increased 8 83%ISO without significantly affecting the v iscosity of oxygen delignified pulp But the cationic surfactant had negative ef fect on the delignification The SEM observation showed that the surfactant coul d improve the fibers swelling,softening and splitting of the oxygen delignified pulp The high brightness (+80%ISO) and good strength TCF bleached pulp was obt ained with the surfactant reinforced oxygen delignification combined with enzyme and H 2O 2 bleaching |
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| Keywords: | oxygen delignification surfactant TCF bleaching |
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