Preparation of a photochromic diarylethene microcapsule with high fatigue resistant and printed on cotton fabric

Wang, Xinyao; Ma, Xinhuan; Cui, Shiqiang; Pu, Shouzhi

doi:10.1016/j.matlet.2023.134530

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…The results obtained and presented in Table 2 indicate that the higher the DTE content in the membrane, the higher the relative staining and fading rates of the samples, expressed as lower fading rates. These results are expected and consistent with findings from the literature on other photochromic dyes applied to textile fabrics, whether via suction dyeing or screen-printing methods [28,39,45].…”

Section: Influence Of Exposure To Uv and Visible Light On The Membran...supporting

confidence: 91%

“…Due to their chemical structure, some photochromic molecules are affected by external conditions, such as pH, temperature, oxidation, and solvents, requiring them to be encapsulated before being applied to textile substrates using the screen-printing method [27]. This approach enables color changes to be controlled and allows surface functionalization formulations to be tailored to improve wash resistance [28], overcoming the problems encountered by Ker et al [29]. The sol-gel process of designing an intelligent photochromic coating is simple and highly effective.…”

Section: Introductionmentioning

confidence: 99%

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Photoresponsive Electrospun Polycaprolactone Nanofibrous Structure Embedding Dithienylethene Molecules

Aden,

Rault,

Salaün

2024

Coatings

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Photochromic polycaprolactone (PCL) nanofibers were prepared through electrospinning. Various factors, including the solvent system, the concentration of PCL, the viscosity of the solution, and the electrical conductivity, influence the morphology of PCL nanofibers. A binary solvent system can dissolve PCL, control fiber structure and morphology, and allow solvent evaporation. The photochromic properties of electrospun membranes based on PCL and diethienylethene (DTE) were assessed using the CM-3610a spectrophotometer. The study showed that incorporating DTE into the membrane enables photochromic performance, with the photochromic reaction being reversible. The analysis of the color-change kinetics showed that the mechanism of photo cycling during colorization was linked to the amplitude of the fast and slow mechanisms, which depended on the formulation tested. The study showed that the photoreversion of the membrane under visible illumination occurs according to first-order kinetics. This work presented the design and manufacturing of photochromic membranes through electrospinning, which offers rapid color change rates, adjustable color fade times, superior reversibility, and reproducibility over at least 10 cycles. The thermochromic properties are proportional to the DTE concentration used, making it possible to obtain color variations with a delta E of 13 and 38 for concentrations ranging from 0.95 to 11.4 wt.%.

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Section: Influence Of Exposure To Uv and Visible Light On The Membran...supporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Photoresponsive Electrospun Polycaprolactone Nanofibrous Structure Embedding Dithienylethene Molecules

Aden,

Rault,

Salaün

2024

Coatings

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Advanced Design for Stimuli‐Reversible Chromic Wearables With Customizable Functionalities

Chen,

Yang,

Fang

et al. 2024

Advanced Materials

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Smart wearable devices with dynamically reversible color displays are crucial for the next generation of smart textiles, and promising for bio‐robots, adaptive camouflage, and visual health monitoring. The rapid advancement of technology brings out different categories that feature fundamentally different color‐reversing mechanisms, including thermochromic, mechanochromic, electrochromic, and photochromic smart wearables. Although some reviews have showcased relevant developments from unique perspectives, reviews focusing on the advanced design of flexible chromic wearable devices within each category have not been reported. In this review, the development history and recent progress in smart chromic wearables across each category are systematically examined. The design strategies for each chromic wearable device are outlined with a focus on functional materials, synthesis processes, and advanced applications. Furthermore, integrated devices based on dual‐stimuli and multi‐stimuli responsive chromics with customizable functionalities are summarized. Finally, challenges and perspectives on the future development of smart chromic wearables are proposed. Such a systematic summary will serve as a valuable insight for researchers in this field.

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Photochromic performance optimization of polyurethane microcapsules by interfacial polymerization method

Yang,

Yu,

Han

et al. 2023

J of Applied Polymer Sci

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Spiropyran photochromic materials have been widely studied in military camouflage, optical data storage, information encryption, and fashion ornaments. The non‐photochromism and low endurance of solid spiropyran make the challenges of their application. Photochromic microcapsules with a butyl acetate solution of spiropyran as core and polyurethane as shell are synthesized via interfacial polymerization. The optimized polyurethane photochromic microcapsules are prepared with a Tween 20 concentration of 4 wt%, core–shell ratio of 16:5, and spiropyran concentration of 0.40 wt%. Polyurethane photochromic microcapsules with a mean particle diameter of 0.33 μm are obtained. The morphology shows smooth spheres, and the core–shell structure is observed. Butyl acetate in the microcapsule core does not evaporate at a temperature lower than 218.01°C as the microcapsule shell insulates heat. The polyurethane photochromic microcapsules are mixed with adhesive, thickener, and water into a paste and screen‐printed on cotton fabric. The printed fabric shows the ΔE of 17.56, 11.93, and 6.96 after 80s irradiation with the xenon lamp intensity of 102, 68, and 34 mW cm−2. The light stability of the photochromic fabric is excellent as ΔE decreases about 8.28% after 20 cycles of UV‐Vis irradiation.

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Preparation of a photochromic diarylethene microcapsule with high fatigue resistant and printed on cotton fabric

Cited by 5 publications

References 11 publications

Photoresponsive Electrospun Polycaprolactone Nanofibrous Structure Embedding Dithienylethene Molecules

Photoresponsive Electrospun Polycaprolactone Nanofibrous Structure Embedding Dithienylethene Molecules

Advanced Design for Stimuli‐Reversible Chromic Wearables With Customizable Functionalities

Photochromic performance optimization of polyurethane microcapsules by interfacial polymerization method

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