| 硫酸盐竹浆氧脱木质素和全无氯漂白的研究 |
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| 引用本文： | 高慧,詹怀宇.硫酸盐竹浆氧脱木质素和全无氯漂白的研究[J].林产化学与工业,2009,29(4):41-46. |
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| 作者姓名： | 高慧 詹怀宇 |
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| 作者单位： | 1. 安徽农业大学,林学与园林学院,安徽,合肥,230036;华南理工大学,制浆造纸工程国家重点实验室,广东,广州,510640
2. 华南理工大学,制浆造纸工程国家重点实验室,广东,广州,510640 |
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| 基金项目： | 国家自然科学基金资助项目，安徽农业大学创新团队资助 |
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| 摘 要： | 通过比较不同条件下氧脱木质素后浆料的卡伯值、黏度、得率、白度和脱木质素选择性等指标,研究了硫酸盐竹浆卡伯值25.6氧脱木质素工艺参数,发现用碱量和温度是决定氧脱木质素效果的主要因素.最佳工艺条件为:用碱量3.5%,温度85℃,氧气压力0.6MPa,保温时间80min.两段氧脱木质素(中间不洗涤)可以提高木质素脱除率和选择性.研究还发现,在氧碱脱木质素过程中加入醌类混合物助剂(表示为Oq),可使浆料的黏度和氧脱木质素的选择性大大提高.采用OQ(PO)、(O1O2)Q(PO)、OQ(PO)1(PO)2和OqQ(PO) 4种短漂序都可使竹浆白度达到80%(ISO) 以上,且具有很好的白度稳定性.OQ(PO)、(O1O2)Q(PO)和OQ(PO)1(PO)2 3种漂序漂后浆纸页强度性能相近,OqQ(PO)漂后浆的抗张指数、撕裂指数和耐破指数明显高于其它3种漂序.
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| 关 键 词： | 硫酸盐竹浆 氧脱木质素 全无氯漂白 |
Oxygen Delignification of Bamboo Kraft Pulp and Bleaching Effects Using Totally-chlorine-free Bleaching Sequences |
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| GAO Hui,ZHAN Huai-yu.Oxygen Delignification of Bamboo Kraft Pulp and Bleaching Effects Using Totally-chlorine-free Bleaching Sequences[J].Chemistry & Industry of Forest Products,2009,29(4):41-46. |
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| Authors: | GAO Hui ZHAN Huai-yu |
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| Institution: | 1.College of Forestry and Gardening;Anhui Agricultural University;Hefei 230036;China;2.State Key Laboratory of Pulp and Paper Engineering;South China University of Technology;Guangzhou 510640;China |
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| Abstract: | Bamboo kraft pulp with a Kappa number 25.6 was sampled,and oxygen delignification and totally-chlorine-free bleaching sequences were applied to bleach these bamboo pulp samples.By investigating pulp yield,Kappa number,viscosity,brightness of pulp,and delignification-selectivity,it has been proven that caustic soda dosage and reaction temperature were major factors for oxygen delignification.The optimal conditions for oxygen delignification were proposed as follows:alkali dosage of 3.5% on o.d.pulp-mass,reac... |
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| Keywords: | bamboo kraft pulp oxygen delignification totally-chlorine-free bleaching |
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