Light-to-Thermal Conversion and Thermoregulated Capability of Coaxial Fibers with a Combined Influence from Comb-like Polymeric Phase Change Material and Carbon Nanotube

Li, Shuqin; Wang, Haixia; Mao, Huiqin; Li, Jing; Shi, Haifeng

doi:10.1021/acsami.9b02387

Cited by 41 publications

(15 citation statements)

References 40 publications

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“…Over the past few decades, organic PCMs have been extensively used in various high technology fields, including solar energy conversion and storage [11][12][13], smart thermosregulated textiles [14][15][16], thermal protection electronic devices [17,18] and healthcare services [19][20][21] due to its high latent heat storage capacity, desired physicochemical stability and remarkable energy-saving capability [22,23]. Nevertheless, the possibility of liquid leakage and inferior solar-thermal energy conversion efficiency has severely restricted the practical applications for most commonly available organic PCMs.…”

Section: Introductionmentioning

confidence: 99%

Silver/Polypyrrole-Functionalized Polyurethane Foam Embedded Phase Change Materials for Thermal Energy Harvesting

et al. 2021

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Conversion of solar energy into thermal energy stored in phase change materials (PCMs) can effectively relieve the energy dilemma and improve energy utilization efficiency. However, facile fabrication of form-stable PCMs (FSPCMs) to achieve simultaneously energetic solar–thermal, conversion and storage remains a formidable challenge. Herein, we report a desirable solar–thermal energy conversion and storage system that utilizes paraffin (PW) as energy-storage units, the silver/polypyrrole-functionalized polyurethane (PU) foam as the cage and energy conversion platform to restrain the fluidity of the melting paraffin and achieve high solar–thermal energy conversion efficiency (93.7%) simultaneously. The obtained FSPCMs possess high thermal energy storage density (187.4 J/g) and an excellent leak-proof property. In addition, 200 accelerated solar–thermal energy conversion-cycling tests demonstrated that the resultant FSPCMs had excellent cycling durability and reversible solar–thermal energy conversion ability, which offered a potential possibility in the field of solar energy utilization technology.

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Section: Introductionmentioning

confidence: 99%

Silver/Polypyrrole-Functionalized Polyurethane Foam Embedded Phase Change Materials for Thermal Energy Harvesting

et al. 2021

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“…Meanwhile, the fluorescence image further proves the formation of the coaxial structure and the homogeneous distribution of ZrC particles in the core layer, where ZrC particles are colored by a fluorescein isothiocyanate of rhodamine B. 8,15 Figure S3 presents the cross-section of fabricated coaxial fiber and corresponding EDS spectrum. It is noticed that a distinct coaxial structure is exhibited in the fiber, while the cortex layer depicts a bark-like rough structure.…”

Section: Resultsmentioning

confidence: 90%

Moisture-Wicking and Solar-Heated Coaxial Fibers with a Bark-like Appearance for Fabric Comfort Management

Kan

et al. 2021

ACS Appl. Mater. Interfaces

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Maintaining the human body’s comfort is a predominant requirement of functional textiles, but there are still considerable drawbacks to design an intelligent textile with proper moisture absorption and evaporation properties. Herein, we develop moisture-wicking and solar-heated coaxial fibers with a bark-like appearance for fabric comfort management. The cortex layer of coaxial fibers can absorb moisture via the synergistic effect of the hierarchical roughness and the hydrophilic polymeric matrix. The core layer containing zirconium carbide nanoparticles can assimilate energy from the body and sunlight, which raises the surface temperature of the material and accelerates moisture evaporation. The resulting coaxial fiber-based membrane exhibits an excellent droplet diffusion radius of 2.73 cm, an excellent wicking height of 6.97 cm, and a high surface temperature of 61.7 °C which is radiated by simulated sunlight. Moreover, the designed fabric also exhibits a significant UV protection factor of 2000. Overall, the successful synthesis of such fascinating fibrous membranes enables the rapid removal of sweat from the human body textile, providing a suitable and comfortable microenvironment for the human body.

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“…This might be attributed to two factors: (a) the added dye only increases the weight without phase transition occurs, which leads to to a decrease in enthalpy, and (b) some aggregation and hindrance to TD from the dye play a dominant effect, which is attributed to molecular limitations. 48 Thermogravimetric analysis (TGA) was used to evaluate the thermal stability of PVDF, CBT, and PVDF-NaCl@CBT-V 0.4 . The results are shown in Figure 9 in terms of the percentage of weight loss versus temperature.…”

Section: Resultsmentioning

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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Light-to-Thermal Conversion and Thermoregulated Capability of Coaxial Fibers with a Combined Influence from Comb-like Polymeric Phase Change Material and Carbon Nanotube

Cited by 41 publications

References 40 publications

Silver/Polypyrrole-Functionalized Polyurethane Foam Embedded Phase Change Materials for Thermal Energy Harvesting

Silver/Polypyrrole-Functionalized Polyurethane Foam Embedded Phase Change Materials for Thermal Energy Harvesting

Moisture-Wicking and Solar-Heated Coaxial Fibers with a Bark-like Appearance for Fabric Comfort Management

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

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