Microencapsulated organic coconut oil as a natural phase change material for thermo-regulating cellulosic fabrics

Saraç, Elif Gözde; Öner, Erhan; Kahraman, Memet Vezi̇r

doi:10.1007/s10570-019-02701-9

Cited by 41 publications

(22 citation statements)

References 28 publications

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“…Coconut oil composed of mostly fatty acids freezes and melts around room temperature. It is characterized by high latent heat capacity, non‐toxicity and non‐corrosivity, thus, it is a promising biocompatible PCM which was found to be suitable for form‐stabilization or microencapsulation 15,16 . Coconut oil showed better oxidative properties than other vegetable oils, because it contains saturated fatty acids, though oxidation and microorganisms can cause deterioration 13 .…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial functionalization of Ca alginate‐coconut oil latent heat storing microcapsules by Ag nanoparticles

Németh

Ujhidy

et al. 2020

Int J Energy Res

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Latent heat storage by phase change materials (PCM) is a promising way of thermal energy storage for equilibrating the daily fluctuation of temperature in office-and home buildings. Bio-originated compounds have got great importance to evade further plastic contamination all over the world. Durability of biodegradable natural materials by means of environmentally friendly agents is an exciting challenge. In this study Ca alginate-coconut oil eco-friendly coreshell PCM microcapsules were functionalized with Ag nanoparticles, following their synthesis using harmless reducing agents. Throughout the preparation of the PCM microcapsules by repeated interfacial coacervation/crosslinking procedure, the Ag nanoparticles were homogeneously dispersed in the Ca alginate shell. High coconut oil content was achieved in the Ag nanoparticle-loaded microcapsules, which was not influenced by the Ag nanoparticle content. The high PCM content resulted in correspondingly high latent heat storing capability. The freezing and melting heat storing capacities were in the range of 83.6 and 85.6 J/g, as well as 89.7 to 92.6 J/g, respectively, matching to the extremely high PCM content in the range of 82.7% to 84.8% (m/m). Leaking of the heat storing microcapsules was not observed after 200 heating-cooling cycles. The Ag nanoparticle content did not influence the PCM ratio of the microcapsules, although as expected their antimicrobial potential was significantly enhanced by it. The highest Ag nanoparticle loading, that was 1.3% (m/m) related to the total mass of microcapsules, exerted excellent antibacterial and antifungal impact.

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Section: Introductionmentioning

confidence: 99%

Antimicrobial functionalization of Ca alginate‐coconut oil latent heat storing microcapsules by Ag nanoparticles

Németh

Ujhidy

et al. 2020

Int J Energy Res

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“…The accumulated latent heat energy is released when the PCM re-solidifies, and the transition process is reversible. Typical organic PCMs are paraffin hydrocarbons or lipids with a melting point close to body temperature [37][38][39][40][41][42][43][44][45][46]. In addition to classical PCMs, photothermal energy conversion materials also perform similar functionalities.…”

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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“…One solution would be to invest in areas such as biotechnology that explore alternatives, such as the use of microorganisms, for the manufacture of textiles, both for clothing and in the footwear industry (Camere and Karana 2018;Saraç et al 2019). Therefore, several tests have been carried out on bacterial cellulose (BC), to explore its exclusive properties, such as high purity, absence of lignin and hemicellulose, high crystallinity, high polymerization, good exibility, tensile strength and nano bril network structure (Chan et al 2018;Kurniawan et al 2012;.…”

Section: Bacterial Cellulose Applications For the Textile Industrymentioning

confidence: 99%

Use of bacterial cellulose in the textile industry and the wettability challenge—a review

et al. 2021

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Bacterial cellulose (BC) has been studied as an alternative material in several segments of the food, pharmaceutical, materials and textile industries. The importance of BC is linked to sustainability goals, since it is an easily degradable biomaterial of low toxicity to the environment and is a renewable raw material. For use in the textile area, bacterial cellulose has attracted great interest from researchers, but it presents some challenges, notably hydrophilicity due to its porous structure. This bibliometric review article gathers studies and methods related to minimizing the hydrophilicity of bacterial cellulose in order to expand its applicability in the textile industry. The databases consulted were ScienceDirect, ProQuest and Web of Science, the documents investigated were scienti c articles and the time period investigated was between 2015 and 2021. The discussion is focused on the applicability of BC in the textile industry, highlighting the research needs, especially with regard to reducing wettability.

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Microencapsulated organic coconut oil as a natural phase change material for thermo-regulating cellulosic fabrics

Cited by 41 publications

References 28 publications

Antimicrobial functionalization of Ca alginate‐coconut oil latent heat storing microcapsules by Ag nanoparticles

Antimicrobial functionalization of Ca alginate‐coconut oil latent heat storing microcapsules by Ag nanoparticles

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

Use of bacterial cellulose in the textile industry and the wettability challenge—a review

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