| 纳米硝化纤维素的制备及性能表征 |
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| 引用本文： | 夏敏,罗运军,华毅龙. 纳米硝化纤维素的制备及性能表征[J]. 含能材料, 2012, 20(2): 167-171 |
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| 作者姓名： | 夏敏 罗运军 华毅龙 |
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| 作者单位： | 北京理工大学材料学院,北京,100081 |
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| 摘 要： | 采用静电纺丝技术制备了硝化棉纳米纤维,确定了硝化纤维素纺丝液溶剂体系的组成。优化了静电纺丝工艺参数。研究结果表明,体积比为11的丙酮/乙醇混合液可作为制备硝化棉静电纺丝液的溶剂;优化得到的纺丝工艺条件为:纺丝电压14 kV,纺丝液浓度9%,纺丝液流量0.1 mL.h-1,接受距离22 cm,在该优化的工艺条件下可得到平均直径为80 nm的硝化棉纳米纤维。静电纺丝没有改变硝化纤维素的分子链结构,纳米硝化纤维素的分解热为1835.80 J.g-1,高于纺丝前硝化纤维素的分解热。
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| 关 键 词： | 材料学 硝化棉 静电纺丝 纳米 |
| 收稿时间： | 2011-04-12 |
| 修稿时间： | 2011-08-03 |
Preparation and Characterization of Nitrocellulose Nano-fibers |
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| XIA Min,LUO Yun-jun and HUA Yi-long. Preparation and Characterization of Nitrocellulose Nano-fibers[J]. Chinese Journal of Energetic Materials, 2012, 20(2): 167-171 |
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| Authors: | XIA Min LUO Yun-jun HUA Yi-long |
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| Affiliation: | Beijing Institute of Technology, Beijing 100081, China;Beijing Institute of Technology, Beijing 100081, China;Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | The nitrocellulose(NC) nano-fibers were prepared by means of electrostatic spinning.The composition of spinning solvent systems used in the preparation was determined with optimized condition.Results show that the nitrocellulose nano-fibers with diameter of 80 nm can be obtained when the mixed liquid composed of acetone and ethanol is in the volume ratio of 11,and spinning voltage14 kV,spinning concentration 9%,spinning fluid flow 0.1 mL·h-1 and received distance 22 cm.The electrostatic spinning does not change the molecular chain structure of nitrocellulose.The decomposition heat of nitrocellulose nano-fibers is 1835.80 J·g-1 which is higher than that of traditional nitrocellulose. |
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| Keywords: | Beijing Institute of Technology Beijing 100081 China |
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