Hydrophobic and thermal behaviour of nylon 6 nanofibre web deposited on cotton fabric through electrospinning

Dhineshbabu, N. R.; Manivasakan, Palanisamy; Rajendran, V.

doi:10.1049/mnl.2014.0161

Cited by 3 publications

(3 citation statements)

References 18 publications

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“…We note that the water contact angle of the patterned fibers was comparable to the electrospun fibers collected on foil, i.e., randomly deposited fibers with no pattern, with a water contact angle 137 ± 8° consistent with previous results for electrospun nylon [ 34 , 37 , 40 ]. This result suggests that the individual fiber-to-fiber spacing within the fiber mat is the most dominant spatial feature of the hierarchical surface roughness in the patterned samples compared to the millimeter features of the mesh.…”

Section: Resultssupporting

confidence: 89%

“…The flexural rigidity physically represents the resistance to bending that would be appreciated by the fingers and can be measured non-destructively [ 32 , 33 ]. Another important functional property would be hydrophobicity For example, materials with water-repellent properties may have applications in protective wear [ 34 ]. Water-repellent properties can be determined from the contact angle of the surface with the drop of water [ 21 ].…”

Section: Resultsmentioning

confidence: 99%

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Direct Fabrication of Functional Shapes on 3D Surfaces Using Electrospinning

et al. 2023

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In this work, we demonstrate the ability to simultaneously pattern fibers and fabricate functional 2D and 3D shapes (e.g., letters, mask-like structures with nose bridges and ear loops, aprons, hoods) using a single step electrospinning process. Using 2D and 3D mesh templates, electrospun fibers were preferentially attracted to the metal protrusions relative to the voids so that the pattern of the electrospun mat mimicked the woven mesh macroscopically. On a microscopic scale, the electrostatic lensing effect decreased fiber diameter and narrowed the fiber size distribution, e.g., the coefficient of variation of the fiber diameter for sample collected on a 0.6 mm mesh was 14% compared to 55% for the sample collected on foil). Functionally, the mesh did not affect the wettability of the fiber mats. Notably, the fiber patterning increased the rigidity of the fiber mat. There was a 2-fold increase in flexural rigidity using the 0.6 mm mesh compared to the sample collected on foil. Overall, we anticipate this approach will be a versatile tool for design and fabrication of 2D and 3D patterns with potential applications in personalized wound care and surgical meshes.

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Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Direct Fabrication of Functional Shapes on 3D Surfaces Using Electrospinning

et al. 2023

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“…Attributed to their high volume-to-length ratio, large specific surface area, small pore size and high porosity, electrospun nanofibers have found applications in a wide range of fields, such as air filtration [1], water treatment [2], energy production [3], medical and bioengineering [4,5], environmental remediation [6], etc. Synthetic polymers, e.g., polyacrylonitrile [7], polyvinylidene fluoride [8], polyamide [9], nylon [10] and polyvinyl butyral [11], are generally used to make electrospun nanofibers because of their excellent spinnability, high purity, large molecular weight and outstanding performances. Compared with the above-mentioned organic solvent-soluble polymers, the manufacturing and application of water-soluble polymer nanofibers have many remarkable merits, e.g., no release of organic solvent, safe production and low cost.…”

Section: Introductionmentioning

confidence: 99%

A Water-Soluble Epoxy-Based Green Crosslinking System for Stabilizing PVA Nanofibers

et al. 2022

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With the ever-growing concern about environmental conservation, green production and water-based nanofibers have attracted more and more interest from both academic and industrial fields; nevertheless, the stabilization process of water-based nanofibers is primarily relying on the application of organic solvent-based crosslinking agents. In this work, we develop a green approach to fabricate water-resistant polyvinyl alcohol (PVA) nanofibers by using a water-based epoxy compound, N1, N6-bis(oxiran-2-ylmethyl) hexane-1,6-diamine (EH), as the crosslinker. This EH/sodium carbonate/sodium bicarbonate (CBS) solution system can break down large aggregates of PVA molecules into small ones and promote the uniform distribution of EH in the solution, resulting in the improved stability of crosslinked PVA nanofibers. We firstly report that the uniform dispersion of crosslinking agents in the electrospinning solution plays a vital role in improving the stability of spinning solutions and the water resistance of crosslinked PVA nanofibers by comparing crosslinking performances between water-based epoxy and conventional water-based blocked isocyanate (BI). This work could open up a novel strategy and green approach for the stabilization of water-based nanofibers.

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