Reversible dual-responsive color-changing fabric based on thermochromic microcapsules for textile fashion and intelligent monitoring

Dyes and Pigments, Год журнала: 2024, Номер 231, С. 112397 - 112397

Опубликована: Авг. 10, 2024

Язык: Английский

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Thermochromic paint with three‐stage colour transition effect based on thermochromic microcapsules and its crosslinking modification

Coloration Technology, Год журнала: 2025, Номер unknown

Опубликована: Янв. 2, 2025

Abstract To expand the colour change range of thermochromic materials, two types microcapsules (TCMs) with different temperatures and effects were utilised to prepare a TCMs blending system exhibiting three‐stage transition at ranging from 10 60°C. Thermochromic paints then prepared based on this using modified waterborne polyurethane (WPU). The properties impact crosslinking modification coating investigated. findings revealed that ratio influences effect temperature system. With variations, can reversibly between blue, green yellow, offering more vibrant compared conventional materials. WPU enabled preparation paint system, which was applied fabric surfaces create multistage fabrics. mechanical properties, water resistance adhesion enhanced, fastness washing fabrics improved by grades. This study has practical significance for application development colour‐changing textiles.

Язык: Английский

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Reversible thermo- and photochromic bifunctional nanofibers prepared by conjugate bubble electrospinning

Materials Chemistry and Physics, Год журнала: 2025, Номер unknown, С. 130691 - 130691

Опубликована: Март 1, 2025

Язык: Английский

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Development of Hybrid Functional Thermoregulating and Thermochromic Microcapsules and Polyester Textiles

Energy Storage, Год журнала: 2025, Номер 7(3)

Опубликована: Март 14, 2025

ABSTRACT The aim of this research was to prepare a microencapsulated thermochromic system capable thermal energy storage for comfort and sensory applications in textiles demonstrate its efficacy when applied polyester fabrics. Therefore, fluoran dye‐based systems (TSs) were prepared poly(methyl methacrylate‐co‐methacrylamide) (PMMA‐co‐MAA) shell using the emulsion polymerization process. contain dye, phenolphthalein (PP), 1‐tetradecanol (TD). Scanning electron microscopy (SEM) images showed that microcapsules spherical homogeneous size. have typical particle size 12–15 μm, making them suitable textile applications. latent heat capacity satisfactory, with melting enthalpy values ranging from 144.2 176.1 J/g. Thermal gravimetric analysis (TGA) disintegrated two unique steps. thermochromicity confirmed UV–Vis spectrophotometer, photographic taken camera. impregnated into 100% fabric after causticizing anionizing pretreatments. SEM presence packed, dense within structures. sample darker color improved homogeneity. hot‐cold measurements total difference (Δ E ) 19.08 23.97. containing has 31.9 J/g heated 34.2°C.

Язык: Английский

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Reversible Thermochromic and Fluorescent Poly(methyl Methacrylate) Nanocapsules for Wearable Devices, Thermal Energy Regulation, and High-Security Anticounterfeiting Inks

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Март 16, 2025

Encapsulated phase change materials have gained significant interest in thermal energy storage recent years. Herein, novel thermochromic and fluorescent nanoencapsulated were developed by coencapsulation of crystal violet lactone, bisphenol A, cetyl alcohol or 1-dodecanol, hexadecane into poly(methyl methacrylate) (PMMA) shell cross-linked a coumarin cross-linker through miniemulsion polymerization. Different ternary mixture to PMMA ratios selected elucidate their effect on the final properties dual nanocapsules. Encapsulation core structure investigated Fourier-transform infrared spectroscopy proton nuclear magnetic resonance spectroscopy. The nanometric size, core–shell morphology, relatively uniform particle size distribution nanocapsules confirmed field-emission scanning electron microscopy, transmission dynamic light scattering. Ultraviolet–visible diffuse reflectance fatigue resistance over 10 cooling–heating cycles, fluorescence illustrated Thermal encapsulation efficiencies measured using differential calorimetry. stability prepared was thermogravimetric analysis. sample with 3:1 ratio encapsulated containing 1-dodecanol as an optimal for different applications due its high color rate −16 26 °C. optimized used anticounterfeiting inks security documents packaging distinguish between original products counterfeit counterparts. In addition, they prepare thermal-energy-regulating windows coatings buildings. can be temperature regulation buildings embellish interior spaces architectural design. also wearable devices that adjust ambient around body absorbing, storing, releasing amount latent heat during process.

Язык: Английский

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An Eco-friendly Approach of Preparation Electric-driven Thermochromic Fabrics Based on Foam Finishing

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2024, Номер unknown, С. 135367 - 135367

Опубликована: Сен. 1, 2024

Язык: Английский

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Design of Thermochromic Cotton Fabrics with Thermoregulation Behavior Through Application of Chitosan–Sodium Alginate/Cvl/1-Tetradecanol-Based Thermochromic Phase Change Microcapsules

Fibers and Polymers, Год журнала: 2024, Номер 25(9), С. 3427 - 3439

Опубликована: Сен. 1, 2024

Язык: Английский

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SiC-doped thermochromic microcapsules with photothermal effect for thermal-regulating fabrics

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2024, Номер 705, С. 135708 - 135708

Опубликована: Ноя. 5, 2024

Язык: Английский

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Millimeter-scale macrocapsules with cold energy storage and temperature indication for vaccine storage

Composites Science and Technology, Год журнала: 2024, Номер unknown, С. 110975 - 110975

Опубликована: Ноя. 1, 2024

Язык: Английский

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An Eco-Friendly Approach of Preparation Electric-Driven Thermochromic Fabrics Based on Foam Finishing

Опубликована: Янв. 1, 2024

The novel strategy to endow Janus fabric with double-sided dual functions based on foam finishing was reported, which is an energy-efficient and environmentally-friendly method. And the controlled discoloration fabric, driving by voltage, has been successfully created through finishing, i.e., one side of electrically generated heat effect thermochromic effect, two sides work synergistically produce excellent driven effect. Reduced graphene oxide (rGO) finished bio-based PA56 as a conductive layer, allows trigger discoloring behavior Joule heating, paint fixed opposite side. shows remarkable electrochromic properties wearability, can be self-supplied meet demand color change at any time: temperature rapidly increases from room over 53.6 °C in 15 s applied voltage 10 V, adjusted range 20~55.5 ℃ 0~8 V. transformed blue white within 6 s, it restore after power off. Besides, flexibility resistance heating fatigue, withstand 1000 bending cycles, found that stability 300 heating/cooling cycles hours continuous energization. Compared conventional foam-finished not only possesses greater air permeability handling properties, but also more energy savings.

Язык: Английский

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