Temperature regulating fibers of high latent heat and strength: Mass production, characterization and applications

Zhang, Guoqing; Xu, Shixiang; Du, Mengyu; Liu, Guojin; Zhou, Lan

doi:10.1016/j.est.2021.103030

Cited by 6 publications

(7 citation statements)

References 35 publications

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“…Thus, when the external temperature exceeds 24 °C, the heat absorption energy from the ambient environment for thermoregulating fibrillating tussah silk is more than that for thermoregulating tussah silk due to the greater surface roughness. 33 First, the unique multimicroporous structure of tussah silk makes it exhibit a high specific surface area, thus helping to penetrate more impregnation solution. Second, the osmotic ability of the finishing liquid molecules was further improved for the fibrillating tussah silk due to its increased cracks and gaps in the morphology structure resulting from fibrillating corrosion.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, the fibrillating tussah silk exhibited a better latent heat property than tussah silk because of increased cracks and gaps in the morphological structure and the improved permeability of PCM molecules. 33,52 In short, tussah silk is considered as an excellent base material for a heat-storage and temperature-regulation textile with promising application prospects.…”

Section: Resultsmentioning

confidence: 99%

“…First, the fibrillating treatment should be conducted on the original tussah silk before its use to improve the rough surface structure and mechanical properties according to our previous report. 33 Then, the functional finishing solution is configured as follows. The emulsifier SDBS is added to the binary fatty acid system of CA-SA to obtain a stable and uniform oil-in-water (O/W) emulsion through high-speed emulsification, which is carried out at 50 °C using a high shear dispersion emulsifier with rotation speed of 10 000 rpm for 30 min.…”

Section: Preparation Of Capric Acid-stearic Acid Binary Fatty Acid Sy...mentioning

confidence: 99%

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Fabrication of air‐conditioning tussah silk with capric–stearic eutectic mixture for effective energy storage and thermal‐regulatory applications

Wang

Zhang

Liu

et al. 2022

Polymer International

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Under the urgent demand of effective energy-storage and thermal-regulatory textile fabrics, the air-conditioning tussah silk as a new arrival is endowed with this excellent property by coupling with the phase change material of capric acid-stearic acid eutectic mixture. In addition, the facile pad-dry-cure technique used with the assistance of ultrasonic waves efficiently avoided the problems of the sophisticated process and low efficiency in traditional post-finishing methods with phase change microcapsules. With optimal preparation conditions, the resultant tussah silk exhibited a superior thermal reliability and thermoregulatory character along with a phase enthalpy of 31.80 J g −1 at a phase change temperature of 24.01 °C. Meanwhile, the tested air permeability, mechanical properties and washing fastness showed its favorable thermal and wear comfort. Benefitting from these admirable merits, this air-conditioning tussah silk with tunable heat storage and release performance could automatically respond to external temperature stimuli, finally contributing to practical application in intelligent protective garments. The intelligent bidirectional temperature-adjusting property corresponding to the efficient management of human skin temperature is beneficial for constructing a comfortable microclimate for the human body. In brief, our study provides a novel heat-storage and temperature-regulating textile with tussah silk as well as unique natural advantages by means of a simple preparation method.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Preparation Of Capric Acid-stearic Acid Binary Fatty Acid Sy...mentioning

confidence: 99%

See 1 more Smart Citation

Fabrication of air‐conditioning tussah silk with capric–stearic eutectic mixture for effective energy storage and thermal‐regulatory applications

Wang

Zhang

Liu

et al. 2022

Polymer International

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“…To overcome the limitations of the low production rate and safety concerns of electrospinning, a safe and massive centrifugal spinning technology has been developed to extrude flexible phase change fibers because no high voltage is required, and its fibrous production rate is hundreds-fold faster than that of electrospinning. [146] Compared to the foregoing techniques, melt spinning, [48,147] a more facile and high-efficiency spinning strategy, has been employed for the mass production of phase change fibers (Figure 10a). Most recently, porous aerogel fibers prepared by freeze-drying [62,148] and supercritical gas drying [49,59] have been developed to serve as new carriers for phase change fibers.…”

Section: Phase Change Fibermentioning

confidence: 99%

Exploring Next‐Generation Functional Organic Phase Change Composites

Zhou

Yang

Feng

et al. 2022

Adv Funct Materials

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As one of the main forms and intermediate carriers of energy, it is impressive to expand the application scope of heat energy, thereby boosting innovations in heat harvesting, conversion, storage, regulation, and utilization associated with the relevant techniques. Phase change materials (PCMs), as a state-of-the-art latent heat storage technique, have garnered increasing interest in heat-related applications over the past decades, and abundant high-performance PCMs with excellent shape stability and salient thermal conductivity have been developed. This review focuses on the issues concerning organic PCMs from the perspectives of flexible, multifunctional, and smart phase change composites, along with emerging applications and processing technologies, which are expected to offer possible guidance for the exploration of next-generation advanced functional phase change composites.

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“…In the past several decades, there has been a great deal of research indicating that phase change materials (PCMs) are an efficient, easy, low cost, and environmentally friendly way for heat storage and temperature regulation . After encapsulation, the PCM microcapsules (MEPCM) have been successfully applied on the textiles by spinning or post-treatment modes. − In the real utilization, the temperature-regulated textiles show a significant temperature regulating effect . However, the realization of the temperature regulation effect requires an adequate temperature fluctuation to drive a solid–liquid phase change of the PCM.…”

Section: Introductionmentioning

confidence: 99%

Sunlight-Triggered Phase Change Energy Storage Composite Materials for Human Body Thermal Management

Zhou

et al. 2022

ACS Appl. Polym. Mater.

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In order to maintain thermal comfort in the human body, photothermal conversion and energy storage microcapsules were designed, developed, and applied in a light-assisted thermoregulatory system. The octyl stearate as a phase change material (PCM) was encapsulated using a polytrimethylolpropane triacrylate (PTMPTA)/polyaniline (PANI) composite as the shell, which was synthesized by adding the intermediate half oxidation state of PANI into the polymerization system of trimethylolpropane triacrylate (TMPTA). In the PCM microcapsules, the PANI particles embedded in the shell can convert sunlight into heat energy to feed the PCM core for energy storage, further realizing the temperature regulation and solving the problem that the phase change behavior cannot be triggered in cold environments. The octyl stearate@PTMPTA/PANI microcapsules exhibit a latent heat of over 103 J/g, good thermal reliability, and 89.12% photothermal conversion efficiency (PCM microcapsules (MEPCM) suspension). Owing to the excellent photothermal performance of the PANI, the thermal energy will be generated under sunshine and simultaneously transferred to the microcapsules for energy storage. As a result, the MEPCM-PTMPTA/PANI can not only achieve a higher temperature than ambient air but also initiate the phase transition process. The obtained microcapsules were further printed on a T-shirt, and a test of self-thermoregulation was carried out in winter. The results suggest that MEPCM-PTMPTA/PANI has good photothermal conversion and temperature regulation capacity under sunshine and low temperature environments.

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Temperature regulating fibers of high latent heat and strength: Mass production, characterization and applications

Cited by 6 publications

References 35 publications

Fabrication of air‐conditioning tussah silk with capric–stearic eutectic mixture for effective energy storage and thermal‐regulatory applications

Fabrication of air‐conditioning tussah silk with capric–stearic eutectic mixture for effective energy storage and thermal‐regulatory applications

Exploring Next‐Generation Functional Organic Phase Change Composites

Sunlight-Triggered Phase Change Energy Storage Composite Materials for Human Body Thermal Management

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