Fabrication of phase-change core/shell nanofibers based on a eutectic fatty acid mixture to control body temperature fluctuations

Hemmatian, Behrouz; Heidarzadeh, Nina; Fard, Ghazaleh Chizari; Maleknia, Laleh

doi:10.1016/j.matchemphys.2020.122738

Cited by 21 publications

(6 citation statements)

References 30 publications

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“…Subsequently, two aspects of thermoregulation investigation were performed. Considering personal thermal management, the temperature adjustment range of the wearer was 2.3 C, while that of the outdoor temperature regulation reached 4.2 C. Hemmatian et al 101 thermoregulated textiles at 40 C which were cooled at room temperature and photographed every 40 s by an infrared thermal imager, and the thermal images were analyzed and binarized by image processing technology to obtain the surface temperature distribution. As a result, the intelligent textiles with PCM on the surface had a significantly longer cooling process.…”

Section: Thermal Management Of Smart Textiles and Thermoregulating Co...mentioning

confidence: 99%

Research progress of thermoregulating textiles based on spinning of organic phase change fiber of energy storage

Xiao,

Feng,

Jia

et al. 2024

Textile Research Journal

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Thermal energy storage can contribute to the reduction of carbon emissions, motivating the applications in aerospace, construction, textiles and so on. Phase change materials have been investigated extensively in the field of high-performance intelligent thermoregulating fabrics for energy storage. Advances toward fibers or fabrics for thermo regulation are developed, but leakage of phase change medium is a concern when directly coated or filled with fibers or fabrics. Thus, different spinning methods have appeared to integrate phase change materials into copolymer fiber to prepare phase change fiber. The present review has been divided into three parts and first deals with spinning technologies such as wet spinning, melt spinning, electrostatic spinning, and centrifugal spinning with the thermal properties and mechanical properties of phase change fiber. Among them, the phase change medium loading in the phase change fiber with wet spinning is up to 70 wt.%, while the fiber strength is below 2.12 cN/dtex. In contrast, phase change fiber prepared by melt spinning achieves a breaking strength of up to 37.31 cN/dtex, but with an enthalpy of only 8.48 kJ/kg. Considering electrostatic spinning, not only enthalpies are satisfactory but the fiber diameters are mostly below 1000 nm, matching with the softness requirement for fabric. Moreover, centrifugal spinning enables efficient production of phase change fiber of large enthalpy by controlling spinning parameters such as rotational speed and spinning fluid concentration. The second part reports that the thermal management effects of different intelligent thermo regulating fabrics are evaluated by designed experiments or simulations to investigate further the more comfortable conditions of thermal comfort of humans. Simulation and experimental results show that the energy storage of smart fabrics extends the time duration of thermal comfort by more than 300 s. In the last part, multifunctional intelligent thermoregulating fabrics are systematically discussed, such as light and heat response, ultraviolet resistance, air permeability, and water resistance. Practical applications of phase change fibers and intelligent thermoregulating fabrics should be further studied and broadened in the future.

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Section: Thermal Management Of Smart Textiles and Thermoregulating Co...mentioning

confidence: 99%

Research progress of thermoregulating textiles based on spinning of organic phase change fiber of energy storage

Xiao,

Feng,

Jia

et al. 2024

Textile Research Journal

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“…The eutectic mixture of two fatty acids, i.e., LA and palmitic acid (PA), was encapsulated in polyamide 6 (PA6) fibers through coaxial ESP by Hemmatian et al. [ 236 ] PVA was added to the eutectic mixture to facilitate the ESP of the core material. The eutectic T m was measured at 32 °C and the eutectic Δ H m was 93.12 J g −1 .…”

Section: Phase Change Materials In Electrospun Fibersmentioning

confidence: 99%

“…The LA-PS fibers showed a robust cycling stability and reusability without a significant decrease in thermal storage capacity during 100 continuous heating-cooling cycles. The eutectic mixture of two fatty acids, i.e., LA and palmitic acid (PA), was encapsulated in polyamide 6 (PA6) fibers through coaxial ESP by Hemmatian et al [236] PVA was added to the eutectic mixture to facilitate the ESP of the core material. The eutectic T m was measured at 32 °C and the eutectic ΔH m was 93.12 J g −1 .…”

Section: Long-chain Fatty Acids-based Phase Change 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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“…The stable heating and cooling enthalpy of 58.74 J g −1 of and 57.41 J g −1 were obtained for the resultant membrane. Coaxial electrospinning of Nylon 6 as shell and a mixture of Lauric acid/Palmitic acid (69/31) as core to produce a membrane with a melting temperature of 32°C, close to the normal body temperature, was investigated by Hemmatian et al 194 The profound contribution of copper nanoparticles to improve the thermal conductivity of electrospun PAN membrane containing PCMs (methyl palmitate and lauric acid) was demonstrated by Xie et al, 195 who also reported a latent heat as high as 85.07 J/g for this membrane. The electrospinning machinery for industrial production scale relies on the nozzle‐less settings.…”

Section: Thermoregulating Membranesmentioning

confidence: 99%

A review on emerging developments in thermal and moisture management by membrane‐based clothing systems towards personal comfort

Gorji

Mazinani

Gharehaghaji

2022

J of Applied Polymer Sci

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Enhanced heat and moisture management has become highly urgent to clothing systems due to the global need to personalize the ventilation process. As a significant sector of apparel industries, membrane‐based clothing systems offer protection and ventilation functionalities. This review aims at providing a new viewpoint on efforts to improve heat and moisture management in membrane‐based clothing systems according to the latest advances in this field. The study terminates with presenting a perspective on current challenges and opportunities for future research directions in personal thermal and moisture management technologies. In fact, membranes with different functionalities used in clothing systems such as photonic membranes with heating and cooling performances, unidirectional liquid transport membranes, waterproof‐breathable membranes, shape‐memory membranes, thermoregulating membranes, thermal conductive membranes and finally protective membranes are investigated. The essential functions associated to different categories of the investigated membranes along with the relationships between membrane structure and properties are presented.

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Fabrication of phase-change core/shell nanofibers based on a eutectic fatty acid mixture to control body temperature fluctuations

Cited by 21 publications

References 30 publications

Research progress of thermoregulating textiles based on spinning of organic phase change fiber of energy storage

Research progress of thermoregulating textiles based on spinning of organic phase change fiber of energy storage

Thermoactive Smart Electrospun Nanofibers

A review on emerging developments in thermal and moisture management by membrane‐based clothing systems towards personal comfort

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