| 成膜条件对NMMO工艺纤维素膜拉伸强度的影响 |
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| 引用本文： | 李新平,孟卿君.成膜条件对NMMO工艺纤维素膜拉伸强度的影响[J].包装工程,2008,29(2):21-23. |
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| 作者姓名： | 李新平 孟卿君 |
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| 作者单位： | 陕西科技大学,陕西省造纸技术及特种纸品开发重点实验室,西安,710021;陕西科技大学,陕西省造纸技术及特种纸品开发重点实验室,西安,710021 |
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| 摘 要： | 以纤维素为原料,N-甲基吗啉-N-氧化物(简写NMMO)为溶剂,采用相转化法制备非对称纤维素膜.对该工艺法成膜的拉伸强度的影响因素进行了研究,以期为提高薄膜性能提供理论基础.实验结果表明:随着溶解纤维素的温度的升高,薄膜拉伸强度降低;随着刮膜时所施加的外力的增大,薄膜的拉伸强度增强;随着凝固浴温度的升高,薄膜的拉伸强度降低;随着塑化剂(甘油)浓度的增加,薄膜拉伸强度降低.
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| 关 键 词： | NMMO 包装薄膜 拉伸强度 影响因素 |
| 文章编号： | 1001-3563（2008）02-0021-03 |
| 收稿时间： | 2007-10-31 |
| 修稿时间： | 2007年10月31 |
Influences of Film Formation Condition on Mechanical Properties of the Cellulose Membrane Prepared by NMMO Technology |
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| LI Xin-ping,MENG Qing-jun.Influences of Film Formation Condition on Mechanical Properties of the Cellulose Membrane Prepared by NMMO Technology[J].Packaging Engineering,2008,29(2):21-23. |
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| Authors: | LI Xin-ping MENG Qing-jun |
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| Abstract: | The unsymmetrical cellulose membrane was prepared with phase transformation method, with cellulose as raw material and NMMO as solvent. The influencing factors on the tensile strength of the unsymmetrical cellulose membranes were studied with the purpose of providing theoretical base for improvement of its performance. The results showed that the tensile strength of the membranes decrease with the increase of dissolving temperature, the increase of coagulation bath temperature, and the increase of glycerol concentration ; the tensile strength increase with the increase of external force scratching the membranes. |
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| Keywords: | NMMO |
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