纳米纤维
Wound care:
The use of nanofiber materials for wound care enables the creation of complex layered dressings that can include multiple therapeutic benefits in a single product. In addition, nanofiber materials offer more surface exposure of active ingredients
Nanofiber
Filtration
Filters are perhaps the most obvious use of nanofibers, where filter performance is based on producing the highest flow rate while trapping and retaining the finest particles without blocking the filter. Nanofibers have improved interception and inertial impaction efficiencies and result in sliesulting in better performance at a given pressure drop. Nanofibers are currently incorporated into commercial filters in air, liquid and automotive applications in both industrial and consumer markets by some of the largest filtration companies in the world.
Nanofiber
Dimensional effects
Due to large specific surface area and volume reduction, the reactivity and selectivity increased obviously, and concrete the super low consumption to.
Nanofiber
Energy
Nanofibers are being applied to photovoltaics and batteries due primarily to increasing surface area of certain absorbent and catalytic materials. Battery separators and even electrodes are being developed from nanofiber materials. Nanofibers generated from ceramics and metals are being developed for capacitors and photovoltaics.
Electrical Properties
Many materials when processed into nanofiber dramatically improve electron transfer. Combined with the extremely thin nature of a nanofiber web, these properties have substantial benefits in energy storage, photocatalytics and sensors.
Reduced Crack Propagation
Achieving the same level of strength with less amount of material is enhanced by the fact that the probability of the failure of one fiber is much higher than the failure of thousands of fibers. Furthermore, upon the development of a structural flaw or crack, it is impossible to propagate to other discrete structural components.
Drug delivery:
The ability for nanofibers to be made from biodegradable, non-biodegradable and hybrid materials enables nanofibers to be utilized for drug delivery for antibiotics. The high surface areas enable high drug loadings and transfer to specific sites.
binding to cells made of awareness of the specific structure of the nanofibers.
Layer structure effect
due to the of nano polymer chain level nano hierarchical structure and new effects.In these effects, the size effect is most effective for the industrial manufacturing of nanofibers
Nanofiber
Textiles
As fiber diameters decrease, desired mechanical properties increase in integrity. Specifically, strength to weight ratios are improved dramatically, reducing the probability of fiber failure. In addition, the nano scale pores created by the fibrous mesh provide the potential for strong insulation properties.
Catalytics
Ceramic nanofibers bearing nanoparticles of several types of noble metals are being developed for catalytic applications in both automotive and industrial settings. The dramatic increase in surface area enables less of the expensive metals (Platinum, Palladium, Rhodium) to be used while achieving the same levels of performance, which leads to severe cost reduction.
Supramolecular arrangement effects
Due to molecular ordered structure, to achieve self-organization, which can show a unified function.
The effect of the cell organism material
Nanofiber
Tensile Strength
Due to the size of nanofibers, the tensile strength of an individual fiber is difficult to analyze; however, tensile strength has been shown to increase by up to 40% over the same weight of material in a bulk or larger format.
Nanofiber
Thermal Properties
Thermal conductivity testing has shown that decreasing fiber diameter into the nanoscale increases thermal resistance of popular insulative materials by almost 50%.
Nanofiber
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概述 纳米纤维的性质 纳米纤维的应用 纳米纤维的制备 PANI纳米纤维的应用
Nanofiber
nanofibers are defined as fibers with diameters less than 1000 nm nanometers. They can be produced by interfacial polymerization, electrospinning, and forcespinning. Carbon nanofibers are graphitized fibers produced by catalytic synthesis. For optical nanofibers see subwavelength-diameter optical fiber.
静电纺丝
静电纺丝是20世纪30年代的发明专利。然而,直到近10年 来,人们才对静电纺丝技术进行了比较系统的理论研究和 实验证实,用静电纺丝法制得的纤维比传统纺丝法制得的纤维 细的多,直径一般在几十纳米至几微米之间,最小直径可达到 1纳米。静电纺丝技术已经成为制备超细纤维和纳米纤维的 重要方法。