Flexible textiles with polypyrrole deposited phase change microcapsules for efficient photothermal energy conversion and storage

Hu, Lecheng; Li, Xiang; Ding, Lei; Chen, Luying; Zhu, Xiangyu; Mao, Zhiping; Feng, Xueling; Sui, Xiaofeng; Wang, Bijia

doi:10.1016/j.solmat.2021.110985

Cited by 67 publications

(17 citation statements)

References 48 publications

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“…In addition to classical PCMs, photothermal energy conversion materials also perform similar functionalities. By absorbing light and converting it into thermal energy, they are used in light-absorbing thermoregulatory textiles [47][48][49].…”

Section: Microcapsules In Functional Textile Productsmentioning

confidence: 99%

Microencapsulation for Functional Textile Coatings with Emphasis on Biodegradability—A Systematic Review

2021

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The review provides an overview of research findings on microencapsulation for functional textile coatings. Methods for the preparation of microcapsules in textiles include in situ and interfacial polymerization, simple and complex coacervation, molecular inclusion and solvent evaporation from emulsions. Binders play a crucial role in coating formulations. Acrylic and polyurethane binders are commonly used in textile finishing, while organic acids and catalysts can be used for chemical grafting as crosslinkers between microcapsules and cotton fibres. Most of the conventional coating processes can be used for microcapsule-containing coatings, provided that the properties of the microcapsules are appropriate. There are standardised test methods available to evaluate the characteristics and washfastness of coated textiles. Among the functional textiles, the field of environmentally friendly biodegradable textiles with microcapsules is still at an early stage of development. So far, some physicochemical and physical microencapsulation methods using natural polymers or biodegradable synthetic polymers have been applied to produce environmentally friendly antimicrobial, anti-inflammatory or fragranced textiles. Standardised test methods for evaluating the biodegradability of textile materials are available. The stability of biodegradable microcapsules and the durability of coatings during the use and care of textiles still present several challenges that offer many opportunities for further research.

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Section: Microcapsules In Functional Textile Productsmentioning

confidence: 99%

Microencapsulation for Functional Textile Coatings with Emphasis on Biodegradability—A Systematic Review

2021

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“…Hu et al modified the phase-change microcapsules with polypyrrole to improve the photothermal conversion efficiency of microcapsules. 23 Yang et al illustrated the effects of the addition of ZnO and CuO nanoparticles on the optical and thermal properties of paraffin wax by experimental and numerical calculation methods and obtained the optimal volume fraction of nanoparticles. 24 Maithya et al reported that the incorporation of GO greatly improved the photothermal conversion efficiency of the phase-change microcapsules.…”

Section: Introductionmentioning

confidence: 99%

“…For example, polyaniline, carbon‐based nanomaterials, 20 noble metal nanomaterials, 21 and semiconductor materials 22 are all common materials with high photothermal conversion performance. Hu et al modified the phase‐change microcapsules with polypyrrole to improve the photothermal conversion efficiency of microcapsules 23 . Yang et al illustrated the effects of the addition of ZnO and CuO nanoparticles on the optical and thermal properties of paraffin wax by experimental and numerical calculation methods and obtained the optimal volume fraction of nanoparticles 24 .…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of novel CuS / SiO ₂ @n‐octadecane phase‐change nanocapsules enhanced photothermal conversion for solar energy utilization

Liu

Liang

Cheng

et al. 2022

Intl J of Energy Research

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Summary The design of CuS/SiO2@n‐octadecane nanocapsules with high sensitivity to light and heat is being conducive to photothermal conversion and efficient utilization of solar energy. In this work, CuS was deposited on the surface of the SiO2 shell by the chemical bath deposition method. Through the characterization of microstructure and chemical composition, the granular CuS crystal was uniformly coated on the SiO2 shell. The synthesized nanocapsules are spherical and have a perfect core‐shell structure. The quantity, distribution, and size of CuS deposited on the shell can be adjusted by regulating the synthesis parameters. The prepared CuS/SiO2@n‐octadecane nanocapsules have a melting temperature of 26.85°C and melting enthalpy of 65.0 J/g at the optimum preparation condition (10 mmol/L cetyltrimethylammonium bromide, 70°C, 0.02 mol/L Cu2+) and have excellent durability. The light absorption performance of CuS/SiO2 nanocapsules in the Vis‐NIR was significantly enhanced, photothermal conversion efficiency reached 52.7%. In addition, the CuS/SiO2 nanocapsules also showed good photocatalytic performance, and the degradation degree of methyl orange reached 71% within 3 hours. These results show that the designed photo‐driven nanocapsules have excellent performance and great potential in solar energy utilization and intelligent fabric. Highlights We have creatively synthesized PCM nanocapsules with CuS/SiO2 shells. The melting enthalpy and melting temperature are 65.0 J/g and 26.85°C, respectively. The activity of the SiO2 shell was increased by amino coupling agent modification. CuS has increased 4‐5 times of photothermal conversion efficiency in Vis‐NIR.

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“…Recently, Hu etc. [ 28 ] fabricated flexible photothermal PCFs by compositing PU and photothermal phase change microcapsules modified by polypyrrole (PPy). The micro-PCMs/PU composite fiber exhibited high enthalpy (184 J/g) and favorable elasticity (372% elongation), but the key point is that the tendency of microcapsules agglomeration is inevitable, which makes the preparation process complex, and the strength of fiber is only 0.54 MPa [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Phase Change Energy Storage Elastic Fiber: A Simple Route to Personal Thermal Management

Wang³

et al. 2021

Polymers

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A novel thermoplastic polyurethane (TPU) PCFs possessing a high loaded ratio and high elasticity was simply prepared by vacuum absorption following wet spinning, then coated by waterborne polyurethane (WPU). Octadecane (OCC), hexadecanol (HEO), and stearic acid (SA), which have different tendencies to form hydrogen bonds with TPU, were selected as PCMs, and their thermal behavior, thermal storge properties, and elasticity were systematically studied, respectively. The hierarchical pore structure though from the sheath to the core part of TPU filaments weakened the influence of the nonfreezing layer and hydrogen bond on the crystallization behavior of PCMs. The resulting HEO/TPU fiber has the highest enthalpy of 208.1 J/g compared with OCC and SA. Moreover, the HEO/TPU fiber has an elongation at break of 354.8% when the phase change enthalpy is as high as 177.8 J/g and the phase change enthalpy is still 174.5 J/g after fifty cycles. After ten tensile recovery cycles, the elastic recovery rate of HEO/TPU fiber was only 71.3%. When the HEO in the fiber was liquid state, the elastic recovery rate of HEO/TPU fiber promoted to 91.6%. This elastic PCFs have excellent thermal cycle stability, elastic recovery, and temperature sensitivity. It has great application potential in the fields of flexible wearable devices, intelligent fabrics, and temperature sensors.

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Flexible textiles with polypyrrole deposited phase change microcapsules for efficient photothermal energy conversion and storage

Cited by 67 publications

References 48 publications

Microencapsulation for Functional Textile Coatings with Emphasis on Biodegradability—A Systematic Review

Microencapsulation for Functional Textile Coatings with Emphasis on Biodegradability—A Systematic Review

Preparation and characterization of novel CuS / SiO ₂ @n‐octadecane phase‐change nanocapsules enhanced photothermal conversion for solar energy utilization

Phase Change Energy Storage Elastic Fiber: A Simple Route to Personal Thermal Management

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Flexible textiles with polypyrrole deposited phase change microcapsules for efficient photothermal energy conversion and storage

Cited by 67 publications

References 48 publications

Microencapsulation for Functional Textile Coatings with Emphasis on Biodegradability—A Systematic Review

Microencapsulation for Functional Textile Coatings with Emphasis on Biodegradability—A Systematic Review

Preparation and characterization of novel CuS / SiO 2 @n‐octadecane phase‐change nanocapsules enhanced photothermal conversion for solar energy utilization

Phase Change Energy Storage Elastic Fiber: A Simple Route to Personal Thermal Management

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Product

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Preparation and characterization of novel CuS / SiO ₂ @n‐octadecane phase‐change nanocapsules enhanced photothermal conversion for solar energy utilization