Thermal responsive fluoran based microcapsule composite material with SiO2; A stable and reversible thermochromic indicator for smart fabric application and its phase change behavior study

IF 4.2 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments Pub Date : 2025-09-01 DOI:10.1016/j.dyepig.2025.113205

Nari Kim, Ramalingam Manivannan, Palanisamy Jayasudha, Young-A Son

{"title":"Thermal responsive fluoran based microcapsule composite material with SiO2; A stable and reversible thermochromic indicator for smart fabric application and its phase change behavior study","authors":"Nari Kim, Ramalingam Manivannan, Palanisamy Jayasudha, Young-A Son","doi":"10.1016/j.dyepig.2025.113205","DOIUrl":null,"url":null,"abstract":"<div><div>In this work, a fluoran-based reversible thermochromic dye (TFD) is synthesized, optimized, and applied as part of a thermochromic composite material (TCM) system that also includes n-hexadecanol and bisphenol A. The strongest thermochromic performance was obtained with the optimized molar ratio (TFD:BPA:n-hexadecanol = 1:3:100), which showed quick and noticeable color changes. Using a sol–gel technique, the TCM was encapsulated within SiO<sub>2</sub> shells to create TCM@SiO<sub>2</sub> microcapsules, which improved thermal stability and durability. To illustrate the usefulness of the new microcapsules in smart textiles the microcapsules were put onto acrylic. The effective encapsulation of the TMC@SiO<sub>2</sub> system and their thermal responsiveness, and durability were validated by extensive spectroscopic (UV–Vis, FT-IR), thermal (DSC, TGA), morphological (SEM, EDS), and surface chemical (XPS) investigations. The potential for sophisticated smart fabric applications was highlighted by the outstanding reversible color shift, strong thermal stability, and retained functionality of the encapsulated thermochromic system after being integrated into textiles.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"245 ","pages":"Article 113205"},"PeriodicalIF":4.2000,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Dyes and Pigments","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0143720825005753","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

In this work, a fluoran-based reversible thermochromic dye (TFD) is synthesized, optimized, and applied as part of a thermochromic composite material (TCM) system that also includes n-hexadecanol and bisphenol A. The strongest thermochromic performance was obtained with the optimized molar ratio (TFD:BPA:n-hexadecanol = 1:3:100), which showed quick and noticeable color changes. Using a sol–gel technique, the TCM was encapsulated within SiO₂ shells to create TCM@SiO₂ microcapsules, which improved thermal stability and durability. To illustrate the usefulness of the new microcapsules in smart textiles the microcapsules were put onto acrylic. The effective encapsulation of the TMC@SiO₂ system and their thermal responsiveness, and durability were validated by extensive spectroscopic (UV–Vis, FT-IR), thermal (DSC, TGA), morphological (SEM, EDS), and surface chemical (XPS) investigations. The potential for sophisticated smart fabric applications was highlighted by the outstanding reversible color shift, strong thermal stability, and retained functionality of the encapsulated thermochromic system after being integrated into textiles.

Abstract Image

查看原文本刊更多论文

含SiO2的热响应氟基微胶囊复合材料一种稳定可逆的智能织物热致变色指示剂及其相变行为研究

本文合成了一种含正十六醇和双酚a的氟基可逆热致变色染料（TFD），并对其进行了优化，并将其作为热致变色复合材料（TCM）体系的一部分进行了应用。优化后的TFD:BPA：正十六醇= 1:3:100的摩尔比获得了最强的热致变色性能，其颜色变化迅速且明显。采用溶胶-凝胶技术，将TCM封装在SiO2外壳中，制成TCM@SiO2微胶囊，提高了热稳定性和耐久性。为了说明新型微胶囊在智能纺织品中的用途，将微胶囊放在丙烯酸酯上。通过广泛的光谱（UV-Vis, FT-IR），热（DSC， TGA），形态学（SEM， EDS）和表面化学（XPS）研究，验证了TMC@SiO2体系的有效封装及其热响应性和耐久性。在集成到纺织品中后，突出的可逆色移，强热稳定性和封装热致变色系统的保留功能突出了复杂智能织物应用的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Dyes and Pigments 工程技术-材料科学：纺织

CiteScore

8.20

自引率

13.30%

发文量

933

审稿时长

33 days

期刊介绍： Dyes and Pigments covers the scientific and technical aspects of the chemistry and physics of dyes, pigments and their intermediates. Emphasis is placed on the properties of the colouring matters themselves rather than on their applications or the system in which they may be applied. Thus the journal accepts research and review papers on the synthesis of dyes, pigments and intermediates, their physical or chemical properties, e.g. spectroscopic, surface, solution or solid state characteristics, the physical aspects of their preparation, e.g. precipitation, nucleation and growth, crystal formation, liquid crystalline characteristics, their photochemical, ecological or biological properties and the relationship between colour and chemical constitution. However, papers are considered which deal with the more fundamental aspects of colourant application and of the interactions of colourants with substrates or media. The journal will interest a wide variety of workers in a range of disciplines whose work involves dyes, pigments and their intermediates, and provides a platform for investigators with common interests but diverse fields of activity such as cosmetics, reprographics, dye and pigment synthesis, medical research, polymers, etc.