共查询到18条相似文献,搜索用时 125 毫秒
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纳米纤维技术的开发及应用 总被引:17,自引:0,他引:17
介绍了纳米纤维的概念及几种制备方法,包括静电纺丝法,海岛形双组分复合纺丝法,分子喷丝板纺丝法、聚合过程中直接制造直径纳米级纤维,以及采用直接纺丝或后整理方法将纳米粉体材料与纤维复合制备纳米纤维的方法,并例举了纳米纤维的应用及对我国发展纳米纤维的建议。 相似文献
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碳纳米管/聚合物纳米复合纤维静电纺丝研究进展 总被引:1,自引:1,他引:0
简述了静电纺丝装置的发展及其基本原理;介绍了静电纺丝制备碳纳米管/聚合物纳米复合纤维的技术进展,主要技术是碳纳米管在聚合基体中的分散性以及二者之间的界面结合力;详述了碳纳米管/聚丙烯腈纳米复合纤维和碳纳米管/聚氧乙烯(PEO)纳米复合纤维的制备及技术进展。指出今后应进一步发挥碳纳米管的性能,改进静电纺丝装置。 相似文献
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静电纺丝法制备聚合物功能纤维的研究进展 总被引:1,自引:0,他引:1
静电纺丝是一种可以直接、连续制备聚合物纳米纤维的新方法。通过静电纺丝法制备的直径在几纳米到几百纳米的纤维在很多领域都有潜在的应用。简单介绍了静电纺丝的原理、发展以及在各领域的应用前景,综述了静电纺丝纤维作为功能材料在吸附过滤、导电导热和保温隔热等方面的应用,并对静电纺丝技术在制备聚合物纳米纤维功能材料方面的发展前景作出了展望。 相似文献
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静电纺丝纳米纤维的制备工艺及其应用 总被引:3,自引:2,他引:1
简述了静电纺丝制备纳米纤维的原理;探讨了静电纺丝电压、流速、接收距离、溶剂浓度等工艺条件;介绍了同轴静电纺丝制备皮芯结构的超细纤维及中空纤维技术以及静电纺丝纳米纤维毡在生物医药方面的应用。指出静电纺丝纳米纤维材料在生物医用方面具有广阔的应用前景,进一步实现低压纺丝、开发无毒溶剂,控制同轴静电纺丝纳米纤维的释放性能是今后静电纺丝的研发方向。 相似文献
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静电纺纳米纤维的研究及应用进展 总被引:2,自引:1,他引:2
简述了静电纺丝基本原理及纺丝过程中射流存在的几种不稳定性形式;探讨了静电纺丝制备纳米纤维的主要影响因素。回顾了静电纺丝的发展历程,介绍了纳米纤维在电子器件、生物医学领域、滤材、防护服用材料纤维增强复合材料及传感器感知膜等方面的应用。指出静电纺纳米纤维性能优异、应用广泛,应用于生物医学领域是研发热点,必将进一步产业化。 相似文献
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The fabrication process of polymer fibers has been analyzed in various ways, and several studies have been conducted to develop new processes and optimize existing ones. Several studies have been conducted on the electrospinning process, which can easily fabricate nanofibers, and the development of materials manufactured through electrospinning has also been investigated. However, research on the nanofiber fabrication and processing of thermoplastic polymers, such as polypropylene (PP), polyethylene and polyethylene terephthalate, is relatively lacking. Therefore, research on nanofiber fabrication is essential. In this study, PP fibers were successfully manufactured through a melt electrospinning/blowing process, which combined melt blowing and electrospinning. To analyze the melt electrospinning/blowing process, the dynamic behavior of the spinning process was observed using a charge-coupled device camera in real time, and the effects of the different spinning conditions were compared and analyzed. As the hot air or high voltage was increased, the spinning jet area tended to increase. In addition, the average diameter of the fabricated fibers tended to decrease as a high voltage was applied at a hot air pressure of 0.01 MPa; conversely, the average diameter tended to increase at a hot air pressure of 0.03 MPa. A similar trend was observed for the tensile stresses in the PP web fabrics. The polymer fibers produced by this melt electrospinning/blowing process can be applied as a production process for nanomembranes, filters and battery separators. © 2022 Society of Industrial Chemistry. 相似文献
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在制备纳米材料的各种方法中,静电纺丝和静电喷雾技术在过去数十年中开辟了低成本、简便、高效和可连续的纳米纤维制造技术路线,引起了科研工作者的广泛关注。本文介绍了静电纺丝和静电喷雾技术的基本原理、影响参数及种类(溶液静电纺丝、熔融静电纺丝、气流静电纺丝、乳液静电纺丝、同轴静电纺丝、多喷嘴静电纺丝和无针静电纺丝),并阐明了不同静电纺丝技术种类的原理及特点。文章进一步着重介绍了静电纺丝和静电喷雾技术的优势及其在电池领域的前沿应用,特别是在锂离子电池、燃料电池、太阳能电池及超级电容器的应用,最后展望了静电纺丝和静电喷雾先进制造技术面临的挑战和发展前景。 相似文献
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以纯角蛋白为原料,采用静电纺丝技术制备的角蛋白纳米纤维膜脆性大、力学性能差,添加化学助剂能够明显改善角蛋白溶液的可纺性,提高角蛋白纳米纤维膜的综合性能。本文主要介绍了在静电纺丝过程中优化和改善角蛋白纳米纤维膜性能的三类化学助剂,包括改善纺丝液可纺性的助纺剂、增强纳米纤维膜综合性能的交联剂以及增加纳米纤维膜特殊功能的抗菌剂。阐述了以上三类化学助剂在静电纺角蛋白纳米纤维膜材料中的相关作用机理,对比了添加化学助剂前后角蛋白纳米纤维膜的结构和性能的变化情况,展望了化学助剂在静电纺角蛋白纳米纤维材料中潜在的应用价值和广阔的应用前景,提出了今后化学助剂在优化静电纺角蛋白纳米纤维综合性能方面的研究方向。 相似文献
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静电纺丝制备聚丙烯腈纳米碳纤维 总被引:1,自引:1,他引:0
利用静电纺丝制备连续的聚丙烯腈纳米碳纤维;介绍了静电纺丝的原理、影响静电纺丝的主要因素以及制备纳米碳纤维、纳米活性炭纤维、纳米碳纤维复合材料的方法和原理;分析了静电纺丝产率低,难以得到单向平铺的纤维等问题,影响静电纺丝的参数主要有溶液特性、纺丝工艺参数、纺丝环境参数。由静电纺丝得到纳米聚丙烯腈纤维,然后再经预氧化和碳化制备纳米碳纤维,或把纳米纤维预氧化,经活化、碳化制备纳米活性炭纤维。并指出纳米碳纤维具有巨大的潜在应用空间。 相似文献
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Mass Production of Functional Amine–Conjugated PAN Nanofiber Mat via Syringeless Electrospinning and CVD
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Polymeric nanofiber webs have attained much attention because they can provide high surface area with various functional groups. To obtain the polymeric nanofiber webs, electrospinning is the most attractive method because this can provide the versatility of material selection. However, it is relatively difficult to obtain the nanofiber webs, which have highly reactive functional groups and high mechanical strength with high production rate. Here, the helically probed rotating cylinder (HPRC) system based on syringeless electrospinning and chemical vapor deposition (CVD) is introduced to prepare the polyacrylonitrile (PAN) nanofiber webs, having high functional groups and high mechanical strength in fast production rate. The HPRC system can provide the PAN nanofiber webs in high production rate, and the CVD process can provide high reactive functional groups on the PAN nanofiber. In addition, the nanofiber webs can be applied to diverse potential application fields, which require a high number of functional moieties. 相似文献