Journals / Tekstil ve Mühendis / 2020 / Cilt: 27 - Sayı: 118

MICROENCAPSULATION OF THERMOCHROMIC SYTEMS CONTAINING FLUORAN DYES BY POLY(METHYL METHACRYLATE) WALL FOR TEXTILE APPLICATIONS

TEKSTİL UYGULAMALARI İÇİN FLUORAN BOYALAR İÇEREN TERMOKROMİK SİSTEMLERİN POLİ(METİL METAKRİLAT) DUVAR İLE MİKROKAPSÜLASYONU

Pages
56–63
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

From TG analysis results, it was determined that microcapsules had sufficient thermal resistance for textile applications.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, microencapsulation of thermochromic systems containing fluoran dye was aimed.
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Key Findings & Data:For this purpose, thermochromic systems containing fluoran dye, Bisphenol A and 1-tetradecanol were microencapsulated with poly(methyl methacrylate) using emulsion polymerization method.
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Conclusion & Impact:From TG analysis results, it was determined that microcapsules had sufficient thermal resistance for textile applications.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study, microencapsulation of thermochromic systems containing fluoran dye was aimed. For this purpose, thermochromic systems containing fluoran dye, Bisphenol A and 1-tetradecanol were microencapsulated with poly(methyl methacrylate) using emulsion polymerization method. Thermal properties and thermal stability of the microcapsules were investigated by differential scanning calorimetry (DSC) and thermal gravimetric (TG) analyzes. The thermo-regulation property of the microcapsules was tested by T-history analysis consisting of temperature sensor and data logger. The temperature-sensitive reversible discoloration properties of the microcapsules were determined by photographs taken at temperatures above and below the activation temperature. According to DSC results, microcapsules had latent heat storage in the range of 152.6-185.8 J/g. It was determined that the microcapsules, which were colored below the activation temperature, lost their color above the activation temperature and exhibited reversible color change property depending on change in temperature. From TG analysis results, it was determined that microcapsules had sufficient thermal resistance for textile applications.

Özet

Bu çalışmada, fluoran boya içerikli termokromik sistemlerin mikrokapsülasyonu amaçlanmıştır. Bu amaçla, fluoran boya,Bisfenol A ve 1-tetradekanol içeren termokromik sistemler, emülsiyon polimerizasyonu metodu kullanılarak poli(metilmetakrilat) ilemikrokapsüllenmişlerdir. Mikrokapsüllerin ısıl özellikleri ve ısıl stabiliteleri diferansiyel taramalı kalorimetre (DSC) ve termalgravimetrik (TG) analizler ile araştırılmıştır. Sıcaklık sensörü ve veri kaydediciden oluşan T-history analiz ile mikrokapsüllerin ısıdüzenleme özelliği test edilmiştir. Aktivasyon sıcaklığının altında ve üstündeki sıcaklıklarda alınan fotoğraf görüntüleri ilemikrokapsüllerin sıcaklık duyarlı tersinir renk değiştirme özellikleri belirlenmiştir. DSC sonuçlarına göre, mikrokapsüllerin 152,6-185,8 J/g aralığında gizli ısı depoladıkları tespit edilmiştir. Aktivasyon sıcaklığının altında renkli olan mikrokapsüllerin aktivasyonsıcaklığının üzerinde renklerini kaybettikleri ve sıcaklıktaki değişime bağlı tersinir renk değişim özelliği sergiledikleri belirlenmiştir.TG analiz sonuçlarından, mikrokapsüllerin tekstil uygulamaları için yeterli ısıl dayanıma sahip olduğu tespit edilmiştir.

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Cite This Article

ÖZKAYALAR, S., AKSOY, S. A., TÖZÜM, M. S., ALKAN, C. (2020). MICROENCAPSULATION OF THERMOCHROMIC SYTEMS CONTAINING FLUORAN DYES BY POLY(METHYL METHACRYLATE) WALL FOR TEXTILE APPLICATIONS. Tekstil ve Mühendis, Cilt: 27 - Sayı: 118, 56–63. https://ajindex.com/articles/365980

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References (15)

  1. Talbot, D., (2003), Smart Textiles, The Institute of Materials, Minerals & Mining, 17
  2. Bamfield, P., (2001), Chromic Phenomena: Technological Applications of Colour Chemistry, The Royal Society of Chemistry, Cambridge
  3. Christie, R.M., (2013), Chromic Materials For Technical Textile Applications, Woodhead Publishing
  4. Erdem İşmal, Ö., Yüksel, E., (2016), Tekstil ve Moda Tasarımına Teknolojik Bir Yaklaşım: Akıllı ve Renk Değiştiren Tekstiller, Yedi: Sanat, Tasarım ve Bilim Dergisi, 16, 87-98
  5. Ajeeb, F., Younes, B., Khsara, A.K., (2017), Investigating the Relationship between Thermochromic Pigment Based knitted Fabrics Properties and Human Body Temperature, IOSR Journal of Polymer and Textile Engineering, 4(3), 44-52
  6. Ibrahim, W., (2012), An Investigation into Textile Applications of Thermochromic Pigments, Heriot-Watt University, School of Textiles and Design, PhD Thesis, 280p, Edinburgh
  7. Chowdhury, M.A., Butola, B.S., Joshi, M., (2013), Application Of Thermochromic Colorants On Textiles: Temperature Dependence Of Colorimetric Properties, Coloration Technology, 129(3), 232- 237
  8. Chowdhury, M.A., Joshi, M., Butola, B.S., (2014), Photochromic and Thermochromic Colorants in Textile Applications, Journal of Engineered Fibers and Fabrics, 9(1), 107-123
  9. Vik, M., Periyasamy, A.P., (2011), Chromic Materials: Fundamentals, Measurements, and Applications, Apple Academic Press
  10. Christie, R.M., Bryant, I.D., (2005), An Evaluation Of Thermochromic Prints Based On Microencapsulated Liquid Crystals Using Variable Temperature Colour Measurement, Coloration Technology, 121, 187-192
  11. Christie, R.M., Robertson, S., Taylor, S., (2007), Design Concepts For A Temperature-Sensitive Environment Using Thermochromic Colour Change, Colour: Design & Creativity, 1(5), 1-11
  12. Bourque, A.N., (2014), Investigations of Reversible Thermochromism in Three-Component Systems, Dalhousie University, PhD Thesis, 373p, Halifax, Nova Scotia
  13. Crano, J.C., Guglielmetti, R.J., (2002), Organic Photochromic And Thermochromic Compounds, Volume 2: Physicochemical Studies, Biological Applications, and Thermochromism, Kluwer Academic Publishers
  14. Periyasamy, S., Khanna, G. Thermochromic Colors in Textiles, http://www.fibre2fashion.com/industryarticle/3059/thermochromiccolors-in-textiles?page=1, 22.09.2017
  15. Boan, Y., (2005), Physical Mechanism and Charactarization of Smart Thermal Clothing, The Hong Kong Polytechnic University, PhD Thesis, 267p, Hong Kong. 16.