| 动态线纺聚乙烯醇/海藻酸钠纳米纤维膜的制备 |
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| 引用本文： | 许文婷,李婷婷,王静,闫梦雪,林佳弘,楼静文. 动态线纺聚乙烯醇/海藻酸钠纳米纤维膜的制备[J]. 高分子材料科学与工程, 2020, 0(2): 140-146 |
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| 作者姓名： | 许文婷 李婷婷 王静 闫梦雪 林佳弘 楼静文 |
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| 作者单位： | 天津工业大学纺织科学与工程学院智慧纺织与节能制品创新平台;天津工业大学教育部与天津市共建先进复合材料重点实验室;台湾逢甲大学纤维与复合材料学系;亚洲大学生物信息与医学工程学系 |
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| 基金项目： | 福建省自然科学基金资助项目(2018J01504,2018J01505);天津市高等学校创新团队项目(TD13-5043);天津市自然科学基金资助项目(18JCQNJC03400);绿色染整福建省高校工程研究中心开放基金(2017001A,2017001B,2017002B). |
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| 摘 要： | 为了实现静电纺纳米纤维产量化的制备,使用自主设计的无针式动态线性电极静电纺丝机制备聚乙烯醇(PVA)/海藻酸钠(SA)(AP)纳米纤维膜。采用扫描电子显微镜(SEM)研究PVA/SA配比、收集距离和纺丝电压对纤维形貌及直径分布的影响。结果表明,PVA/SA配比对纤维形貌影响最大,随着SA含量降低,溶液牵伸顺利;在此基础上随着距离增加,纤维形貌逐渐改善但不匀率有所增加。当7.5%PVA与2%SA按体积比9∶1共混时,所得纤维形貌及直径分布最佳,最佳纺丝电压和距离分别为75 kV和25 cm,纤维平均直径为(187±44)nm,产量可达2.5 g/h。为AP纳米纤维膜的规模化制备提供了参考。
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| 关 键 词： | 静电纺丝 线性电极 纤维形貌 可纺性 结构调控 |
Preparation of Dynamic Linear Spinning Polyvinyl Alcohol/Alginate Nanofiber Membranes |
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| Affiliation: | (Innovation Platform of Intelligent and Energy-Saving Textiles,School of Textile Science and Engineering,Tiangong University,Tianjin 300387,China;Tianjin and Ministry of Education Key Laboratory of Advanced Textile Composite Materials,Tiangong University,Tianjin 300387,China;Department of Fiber and Composite Materials,Feng Chia University,Taichung 40724,China;Department of Bioinformatics and Medical Engineering,Asia University,Taichung 41354,China) |
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| Abstract: | For realizing high production of electro-spun nanofibers, polyvinyl alcohol(PVA)/sodium alginate(SA)(AP) nanofiber membranes were prepared by a self-designed needleless dynamic linear electrode electrospinning machine. The influences of PVA/SA ratio, distance and spinning voltage on the morphology and diameter distribution of fibers were studied by scanning electron microscopy(SEM). The results show the ratio of PVA/SA has the greatest influence on the morphology of spun fibers. With the decrease of SA content, the solution drafting was smooth. On this basis, as the distance increases, the fiber morphology is gradually improved, and the unevenness rate is increased. When 7.5% PVA and 2% SA are blended by the volume ratio of 9∶1, the fiber morphology and diameter distribution are optimal. The optimum spinning voltage and distance are 75 kV and 25 cm, respectively. The average fiber diameter is(187±44) nm and the yield can reach 2.5 g/h. This study provides a reference for the large-scale preparation of AP nanofiber membranes. |
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| Keywords: | electrospinning linear electrode fiber morphology spinnability structure control |
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