Thermochromic luminescent fiber based on yellow thermochromic microcapsules: preparation, properties, and potential application areas

Shi, Ming; Lu, Bohui; Li, Xiaoqiang; Yang, Junxiao; Ge, Mingqiao

doi:10.1007/s10570-021-03858-y

Cited by 15 publications

(7 citation statements)

References 39 publications

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“…Moreover, comparing the recovered material with the Joint Committee on Powder Diffraction Standards (JCPDS) standard card (PDF#34-0379) supported the theory that it has a physical phase composition of α-SrAl 2 O 4 , a monoclinic crystal structure with lattice constants of a = 8.442 Å, b = 8.822 Å, c = 5.160 Å, and good crystallinity. 14 –16 The results suggest that the alcoholysis process does not damage the lattice structure of the luminescent material and preserves the SrAl 2 O 4 :Eu 2+ , Dy 3+ crystal form.…”

Section: Resultsmentioning

confidence: 90%

“…˚, b ¼ 8.822 A ˚, c ¼ 5.160 A ˚, and good crystallinity. [14][15][16] The results suggest that the alcoholysis process does not damage the lattice structure of the luminescent material and preserves the SrAl 2 O 4 :Eu 2þ , Dy 3þ crystal form. In order to investigate further the color performance of the luminescent material after degradation, the chromaticity analysis of SrAl 2 O 4 :Eu 2þ , Dy 3þ before and after degradation was carried out.…”

Section: Analysis Of Degradation Productsmentioning

confidence: 99%

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Study on alcoholysis recovery and performance of luminous materials in waste luminous fibers

Rao

Liao

Zhu

et al. 2022

Textile Research Journal

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To alleviate the wastage of resources and environmental pollution caused by waste luminous polyester fibers, glycolysis was found rapidly to degrade luminescent polyester fibers and assist in recovering luminescent materials from the fibers. However, the luminescent performance of recycled luminescent materials is poor. To improve the performance of recovered luminescent materials, this study employs the recovery rate of luminescent materials, initial brightness, and recovery rate of Bis (2-hydroxyethyl) terephthalate as performance indexes. The present study aims at optimizing the alcoholysis process by influencing factors such as the amount of catalyst, amount of ethylene glycol added, and reaction temperature to improve the luminous performance, and explores the mechanism of alcoholysis reaction in the recovery process of luminescent materials. The results showed that, when the catalyst content is 0.1 g, the mass ratio of polyethylene terephthalate:ethylene glycol is 1:10, the reaction temperature is 170°C for 4 hours, the Bis (2-hydroxyethyl) terephthalate conversion rate reaches 61.92%, the recovery rate of luminescent materials reaches 92.53%, and the initial brightness is as high as 5.607 cd/m2.

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Section: Resultsmentioning

confidence: 90%

Section: Analysis Of Degradation Productsmentioning

confidence: 99%

Study on alcoholysis recovery and performance of luminous materials in waste luminous fibers

Rao

Liao

Zhu

et al. 2022

Textile Research Journal

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“…Varieties of these include microencapsulated colorants for One of the initial microencapsulation applications to achieve innovative effects in textile processing have been microencapsulated dyes and pigments for special textile printing and dyeing. Varieties of these include microencapsulated colorants for permanent dyeing and printing of textiles [19][20][21], as well as colour changing textiles based on thermochromic microcapsules [22][23][24][25], photochromic dyes [26][27][28][29], and electrochromic textiles containing microencapsulated liquid crystals [30][31][32].…”

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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“…Their reversible color-changing property allows durability and reusability. [3][4][5][6][7] Nanoparticle polymer thermometers composed of nanosized self-assembling molecules have received much attention for their biological compatibility, photocatalytic ability, and rapid response. They have been investigated for their potential application in pollutants degradation and battery safety monitoring.…”

Section: Introductionmentioning

confidence: 99%

Development of novel reversible thermometer from N‐isopropylacrylamide and dicyanodihydrofuran hydrazone probe

Snari

Al‐Qahtani

Aldawsari

et al. 2022

Polymer Engineering & Sci

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A simple‐structured polymeric colorimetric thermometer with selective colorimetric changes over a specific temperature range was developed. Thermo‐responsive poly(N‐isopropylacrylamide‐co‐Dicyanodihydrofuran hydrazone) [Poly(NIPAM‐co‐DCDHFH)] organogel imprinted with DCDHFH chromophoric probe was prepared via free radical polymerization. The DCDHFH chromophore bearing a vinyl group was prepared by azo‐coupling of DCDHF with a diazonium salt of 2‐amino‐5‐nitrophenol bearing a vinyl substituent. The poly(NIPAM‐co‐DCDHFH) consists of DCDHFH chromophore and N‐isopropylacrylamide (NIPAM) monomers. The chemical structure of DCDHFH probe was verified by 1H NMR and FT‐IR. The thermochromic property can be attributed to a heat‐stimulated polymer self‐assembly process controlling the inner hydrophobicity leading to charge delocalization on the molecular system of the DCDHFH chromophore. Poly(NIPAM‐co‐DCDHFH) functioned as a thermochromic detector displaying colorful shifts between yellow (422 nm) and blue (580 nm) with raising the temperature of the aqueous poly(NIPAM‐co‐DCDHFH). These color shifts were correlated to the temperature increment from 28 to 46°C owing to the phase changes of the poly(NIPAM‐co‐DCDHFH) copolymer in aqueous media. The morphological features of the organogel nanofibers were studied by transmission electron microscope (TEM) and scanning electron microscopy (SEM). The working mechanism accounting for the thermochromic performance of poly(NIPAM‐co‐DCDHFH) was explored. The cytotoxicity of the poly(NIPAM‐co‐DCDHFH) hydrogel was also evaluated. This is a significant study for a variety of potential applications, such as functional apparel and medicinal applications.

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Thermochromic luminescent fiber based on yellow thermochromic microcapsules: preparation, properties, and potential application areas

Cited by 15 publications

References 39 publications

Study on alcoholysis recovery and performance of luminous materials in waste luminous fibers

Study on alcoholysis recovery and performance of luminous materials in waste luminous fibers

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

Development of novel reversible thermometer from N‐isopropylacrylamide and dicyanodihydrofuran hydrazone probe

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