Thermochromic Fibers via Electrospinning

Nguyen, Jimmy; Stwodah, Ratib M.; Vasey, Christopher L; Rabatin, Briget E; Atherton, Benjamin; D’Angelo, Paola A.; Swana, Kathleen W; Tang, Christina

doi:10.3390/polym12040842

Cited by 20 publications

(32 citation statements)

References 44 publications

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“…The iridescence temperature sensitiveness of analogous fibers, containing N‐(4‐methoxybenzylidene)‐4‐butylaniline in the core, was studied by Bertocchi et al., [ 216 ] highlighting a significant reversible change in the temperature range of 30–42 °C. Nguyen et al [ 217 ] compared fibers obtained by blending a liquid crystal formulation with PS and by using coaxial ESP to incorporate LC in the core of a PEO fiber. They obtained, however, thermochromic fibers only with the coaxial ESP method.…”

Section: Thermo‐optically Responsive Electrospun Fibersmentioning

confidence: 99%

Thermoactive Smart Electrospun Nanofibers

Liguori

Pandini²,

Rinoldi

et al. 2022

Macromol. Rapid Commun.

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The recent burst of research on smart materials is a clear evidence of the growing interest of the scientific community, industry, and society in the field.The exploitation of the great potential of stimuli-responsive materials for sensing, actuation, logic, and control applications is favored and supported by new manufacturing technologies, such as electrospinning, that allows to endow smart materials with micro-and nanostructuration, thus opening up additional and unprecedented prospects. In this wide and lively scenario, this article systematically reviews the current advances in the development of thermoactive electrospun fibers and textiles, sorting them, according to their response to the thermal stimulus. Hence, several platforms including thermoresponsive systems, shape memory polymers, thermo-optically responsive systems, phase change materials, thermoelectric materials, and pyroelectric materials, are described and critically discussed. The difference in active species and outputs of the aforementioned categories is highlighted, evidencing the transversal nature of temperature stimulus. Moreover, the potential of novel thermoactive materials are pointed out, revealing how their development could take to utmost interesting achievements.

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Section: Thermo‐optically Responsive Electrospun Fibersmentioning

confidence: 99%

Thermoactive Smart Electrospun Nanofibers

Liguori

Pandini²,

Rinoldi

et al. 2022

Macromol. Rapid Commun.

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“…Electrical energy can be easily transferred to the working fluid when a metal capillary is exploited as a spinneret, and spinnerets are acknowledged to be the most important part of an electrospinning system. The three other parts of an electrospinning system are the fluid-driving pump, high power supply, and fiber collector [ 29 , 30 , 31 ]. Thus far, the influence of the surface between the spinneret’s texture and the passing fluid has received little attention.…”

Section: Introductionmentioning

confidence: 99%

Energy-Saving Electrospinning with a Concentric Teflon-Core Rod Spinneret to Create Medicated Nanofibers

et al. 2020

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Although electrospun nanofibers are expanding their potential commercial applications in various fields, the issue of energy savings, which are important for cost reduction and technological feasibility, has received little attention to date. In this study, a concentric spinneret with a solid Teflon-core rod was developed to implement an energy-saving electrospinning process. Ketoprofen and polyvinylpyrrolidone (PVP) were used as a model of a poorly water-soluble drug and a filament-forming matrix, respectively, to obtain nanofibrous films via traditional tube-based electrospinning and the proposed solid rod-based electrospinning method. The functional performances of the films were compared through in vitro drug dissolution experiments and ex vivo sublingual drug permeation tests. Results demonstrated that both types of nanofibrous films do not significantly differ in terms of medical applications. However, the new process required only 53.9% of the energy consumed by the traditional method. This achievement was realized by the introduction of several engineering improvements based on applied surface modifications, such as a less energy dispersive air-epoxy resin surface of the spinneret, a free liquid guiding without backward capillary force of the Teflon-core rod, and a smaller fluid–Teflon adhesive force. Other non-conductive materials could be explored to develop new spinnerets offering good engineering control and energy savings to obtain low-cost electrospun polymeric nanofibers.

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“…Adding some functional materials into the fibers can respond to external stimuli, such as, light, heat, electric, and magnetic fields, making these materials have applications in monitoring, control, and sensing. [32][33][34][35] Phase change thermochromic materials have received widespread attention due to their heatsensitive reversible color and temperature regulation characteristics. The Japanese Dream Company has produced color-changing octopus toys, which are deeply loved by children.…”

Section: Introductionmentioning

confidence: 99%

Reversibly thermochromic and high strength core‐shell nanofibers fabricated by melt coaxial electrospinning

Wang

Fang

et al. 2021

J of Applied Polymer Sci

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Recent years, phase change materials (PCMs) with potential to store and transform energy have attracted broad attention, especially in the field of thermal energy storage. However, the instability and leak proneness of PCMs limit their universal application. In this paper, core-shell fibers with 1-tetradecanol (TD) as core and poly(vinylidene fluoride) (PVDF) as shell were prepared via melt coaxial electrospinning method, and for improvement, the dye composed of crystal violet lactone (CVL) and bisphenol A (BPA) was added to the core to endow the fiber the function of reversible thermochromism. During the preparation process, it was found that the addition of NaCl could regulate the fiber morphology and strength its mechanical property. By adjusting the concentration of shell solution and the flow rate of core solution, the high-strength reversible thermochromic fibers were produced when polymer concentration was 24 wt% with a core feed rate of 0.4 ml/h. The latent heat of these fibers is up to 88.71 J/g. Besides, its color can change from blue to white when heated, and the transition temperature is around 38 C. And 100 thermal cycle tests of the fiber showed its strong thermal stability and thermochromic property.

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Thermochromic Fibers via Electrospinning

Cited by 20 publications

References 44 publications

Thermoactive Smart Electrospun Nanofibers

Thermoactive Smart Electrospun Nanofibers

Energy-Saving Electrospinning with a Concentric Teflon-Core Rod Spinneret to Create Medicated Nanofibers

Reversibly thermochromic and high strength core‐shell nanofibers fabricated by melt coaxial electrospinning

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