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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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静电纺纳米纤维的应用 总被引:1,自引:0,他引:1
综述了静电纺纳米纤维在保护性服用材料、传感器、过滤防护材料、高分子纳米模板、纳米复合改性材料、航空航天等方面的应用;详述了在生物医用材料方面的应用;展望了静电纺丝纳米纤维的发展前景;指出应继续研发具有特殊性能的静电纺纳米纤维新产品,扩大其应用领域,最终实现成果产业化。 相似文献
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静电纺丝纳米纤维较传统纳米材料有许多独特的性能,静电纺丝纳米纤维修饰电极的研究是其新热点;按修饰方法的不同,静电纺丝纳米纤维修饰电极分为直接修饰和非直接修饰电极两大类。综合近年来国内外的静电纺丝纳米纤维修饰电极相关研究,阐述了静电纺丝技术直接修饰电极、静电纺丝技术非直接修饰电极的相关纳米纤维材料的制备、特性及应用;指出由于静电纺丝纳米材料的多样化与优异性,静电纺丝纳米纤维修饰电极具有灵活性与灵敏性,其在生物传感器、生物芯片、染料电池等方面的应用极具开发潜力,在未来多个领域和研究中发挥重要作用。 相似文献
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Jiao Ding Ruihao Lai Wenjie Chen Ming He Guodian Zhu Suqing Huang Guoqiang Yin 《应用聚合物科学杂志》2021,138(18):50348
Waste feather keratin (FK)-based nanofibers by electrospinning and citric acid (CA) vapor modification has been successfully prepared and investigated. FK, poly(vinyl alcohol), and poly(ethylene oxide) have been used as raw materials and CA vapor as cross-linker. The structural, thermal, hydrophobicity, and mechanical properties of FK-based nanofibers by CA vapor modification with various cross-linking time have been completely explored. In order to investigate the effect of H2O vapor on CA vapor modification, H2O vapor modification was performed on the FK-based nanofibers at the same conditions. The results show that the average diameter of nanofibers increased from 250.83 ± 29.65 nm to 338.79 ± 31.43 nm by CA vapor modification with 15 h. Similarly, the thermal stability and water resistance of FK-based nanofibers by CA vapor modification have been significantly improved. The tensile strength (σb) and elongation at breakage point (εb) of FK-based nanofibers after CA vapor modified for 15 h were about 1.5 and 2 times higher than that of nonmodified nanofibers, respectively. By comparison, scanning electron microscopy results suggest that the FK-based nanofibers modified by H2O vapor cannot maintain the morphology of the nanofibers, resulting in large-scale adhesion. The thermal properties of FK-based nanofibers with H2O vapor modification have no obvious change. The hydrophobicity and mechanical properties of FK-based nanofibers by H2O vapor modification are not as good as that of CA vapor modification. In summary, these results exhibit that nontoxic and natural CA can be used as cross-linking agent to enhance the comprehensive performance of FK-based nanofibers. This study provides a new method to modify FK-based nanofibers and refined the waste feathers, which not only protected the environment, but also gained benefits, which has a broad application prospect. 相似文献
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Electrospinning is a relatively simple method to produce submicron fibers from solutions of different polymers and polymer blends. The extensive application in future of electrospinning nanofibers is filtration. In this article, the filtration properties of electrospinning nanofibers were investigated. During the experiments, nanofibers layers with different area weight were electrospun on the spunbonded or meltblown sublayers. Fiber diameter, pore diameter, filtration efficiency as well as filtration resistance of nanofibers web and sublayers were measured, respectively, through a series of experiments. The results show that the fiber diameter of nanofibers is much smaller than that of sublayers. It is also found that the pore diameter of nanofibers web is much smaller than sublayers and coefficient variation of the pore diameter of nanofibers web is much smaller than sublayers. Moreover, the filtration efficiency and filtration resistance of sublayers are lower than nanofibers webs. The balance between efficiency and press drop is also investigated in the article. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 1285–1290, 2006 相似文献
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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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采用单因素实验方法,以选煤废水为研究对象,将鸡毛角蛋白助剂与聚合硫酸铁复配体系用于选煤废水处理,研究复配体系对选煤废水的处理效果。结果表明:复配体系的最佳配置为鸡毛角蛋白助剂0.2 g/L,聚合硫酸铁0.025 g/L,且该复配体系实现了在碱性条件下高效处理选煤废水。该复配体系处理选煤废水的最佳工艺条件为:室温下,选煤废水在pH值为7~8的条件下,投加角蛋白复配体系并搅拌,搅拌速度为120 r/min,反应后沉降30 min,此时,SS(固体悬浮物)去除率达到92%以上。 相似文献
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Xiaotong Zhang Yanxin Wang Zhiyuan Gao Xinhui Mao Jiaxuan Cheng Linjun Huang Jianguo Tang 《应用聚合物科学杂志》2024,141(1):e54746
In recent years, there has been a significant focus on bioactive dressings suitable for treating chronic and acute wounds. Electrospinning nanofibers are considered advanced dressing options due to their high porosity and permeability to air and water, effective barrier properties against external pathogens, and excellent resemblance to the extracellular matrix for wound healing and skin regeneration. This article reviews the recent advancements in the application of electrospinning nanofibers for bioactive wound healing. The review begins with an overview of the wound healing process and electrospinning methods. It then explores the advantages and disadvantages of different synthetic and natural polymers used in the preparation of electrospinning wound dressings. The natural polymers discussed in this review include collagen, gelatin, silk fibroin, chitosan, hyaluronic acid, and sodium alginate. Additionally, the review delves into commonly used synthetic polymers like polyvinyl alcohol, polyvinyl chloride, polyethylene lactone, polylactide, and polyurethane for wound dressing applications. Furthermore, the review examines the blending of natural and synthetic polymers to create high-performance wound dressings. It also explores the incorporation of functional additives, such as antimicrobial agents, growth factors, and natural extracts, into electrospinning nanofibers to expedite wound healing and tissue repair. In conclusion, electrospinning is an emerging technology that provides unique opportunities for designing more effective wound dressings and care products. 相似文献
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廷璋 《高科技纤维与应用》2011,36(1):32-35,43
综述了日本和欧美静电纺丝纳米纤维技术和制品的新进展、已产业化的品种和正在研发的多样新品种和新用途,指出未来的研发方向和动向. 相似文献
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Controlled release of protein from core–shell nanofibers prepared by emulsion electrospinning based on green chemical 下载免费PDF全文
Direct application of active protein in practical food system suffers from the major disadvantage of protein inactivation caused by food components and environmental factors. This study is the first to encapsulate water‐soluble protein into hydrophobic polystyrene (PS) polymer via emulsion electrospinning technique based on green chemical L‐limonene to achieve sustained release of protein. Core–shell nanostructure with elongated domains was observed in electrospun fibers. In vitro release profiles suggest that a sustained release of protein was achieved. The increased release rate with PS molecular weight reveals that the release of protein could be well tuned by tailoring polymeric molecular weight, which is possibly attributed to the association of release rate with fiber inner structure and protein distribution in matrix. These results demonstrate that an excellent protein delivery system could be obtained via emulsion electrospinning based on green chemical for the application in antimicrobial packaging and filtration in food industry. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132, 41811. 相似文献
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静电纺丝制备聚丙烯腈纳米纤维及其预氧化 总被引:1,自引:0,他引:1
利用聚丙烯腈/二甲基甲酰胺纺丝溶液由静电纺丝制备了聚丙烯腈纳米纤维,纳米纤维的直径在220~760nm。随着聚合物溶液浓度和纺丝施加电压的升高,纳米纤维的直径变大。采用热分析和热重分析研究了纳米纤维的热性能,还用红外光谱对纳米纤维预氧化过程分子化学结构的变化进行了表征,结果表明,纳米纤维有一个很尖锐的放热峰,是聚丙烯腈均聚物典型的放热峰。随着预氧化温度的升高,纤维的内部分子结构发生了变化,表现在红外光谱上最突出的是C≡N在2243~2241cm^-1峰的降低,以及C—H在1684cm^-1峰的降低。 相似文献
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静电纺丝制备的纳米纤维孔隙率高、吸附能力强,可用于高效地处理化工行业油污染问题。聚乳酸(PLA)作为生物可降解材料,来源广泛且不会造成二次污染,具有广阔的应用前景。本文利用自制的熔体微分电纺装置,制备了PLA/乙酰基柠檬酸三丁酯(ATBC)纤维膜,探究了物料性质和增塑剂ATBC含量对PLA纤维形貌及吸油性能的影响,并获得了最佳的纺丝温度和ATBC含量。研究表明,在纺丝温度为240℃、ATBC质量分数为10%时制备的纤维直径为320nm。该纤维膜水接触角为145°,表现出良好的疏水性能,吸油倍率为138.4g/g,是市售PP无纺布吸油性能的4~5倍,保油倍率为85.8g/g。重复吸/放油5次循环后,纤维膜仍具有良好的强度而未发生断裂且可继续进行吸油,重复使用性能较好,可被应用于化工行业油污染处理。 相似文献