| 棉纤维碱法蒸煮时金属离子对纤维素聚合度的影响 |
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| 引用本文： | 汪珍珍,李 群,牛立平. 棉纤维碱法蒸煮时金属离子对纤维素聚合度的影响[J]. 中国造纸学报, 2011, 26(4): 17-20 |
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| 作者姓名： | 汪珍珍 李 群 牛立平 |
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| 作者单位： | 天津科技大学天津市制浆造纸重点实验室,天津,300457 |
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| 摘 要： | 在不同金属离子存在的条件下,对脱脂棉纤维进行了碱法蒸煮,并测定蒸煮后棉纤维聚合度.结果表明,K+在一定程度上会促进棉浆中纤维素的降解,而Mg2+、Ca2和Fe2+在一定程度上抑制了纤维素的降解.
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| 关 键 词： | 纤维素 碱性降解 金属离子 碱法蒸煮 黏度 |
Effect of Metal Ions on the Viscosity of Cellulose in Cotton Fiber Cooking with Alkali |
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| WANG Zhen-zhen , LI Qun , NIU Li-ping. Effect of Metal Ions on the Viscosity of Cellulose in Cotton Fiber Cooking with Alkali[J]. Transactions of China Pulp and Paper, 2011, 26(4): 17-20 |
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| Authors: | WANG Zhen-zhen LI Qun NIU Li-ping |
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| Affiliation: | WANG Zhen-zhen LI Qun NIU Li-ping (Tianjin University of Science and Technology,Tianjin Key Lab of Pulp & Paper,Tianjin,300457) |
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| Abstract: | Similar to alkaline pulping,absorbent cotton was cooked by alkali in this experiment.This paper introduced the experiment conditions.The effect of different metal ions(K+,Mg2+,Ca2+ and Fe2+) on alkaline degradation of cellulose was studied.The copper ethylenediamine(CED) method was used to measure the viscosity of absorbent cotton pulp,then the degree of polymerization(DP) of the cellulose was derivated.The results indicated that K+ promotes alkaline degradation of cellulose in a certain degree;however,Mg2+... |
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| Keywords: | cellulose alkaline degradation metal ions alkaline cooking viscosity |
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