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Microencapsulation of Fragrance with Polyurethane—Urea and Application on Different Fabrics

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Abstract

In the study, microencapsulation of methyl cedryl ketone (MCK) with polyurethane urea (PUU) polymers was performed by interfacial polymerization method. PUU (isocyanate/PEG-400/polyamine) mole ratios (5.4/3.0–5.5/1.5–3.9), which is the main component of the capsule shell, were formed at a temperature of 80 °C in 240 min. The encapsulation efficiency of the produced microencapsules, CMK-PUU microcapsule release at room temperature, microencapsule shell degradation at high temperature, adhesion durability by fixing on cotton, polyester, silk and non-woven fabric were investigated. Structure analysis of the toluenediisocyanate, non-containing MCK-PUU microencapsule shell in FT-IR spectroscopy, stability and size of emulsified droplets with optical microscope, the size, wall thickness and adhesion of the MCK-PUU microencapsules on the fabric by scanning electron microscope and thermal degradation of the capsule wall material by thermo gravimetric analysis were investigated. The yield of the microencapsules was 65.66–73.56%, the capsule wall thickness was 1250 nm, the active substance loss at 20 °C for 60 days was 5.5%, after being attached to the fabric, it was stable up to 4 washes on the fabric.

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Funding

This work was supported by the [Afyon Kocatepe University, Scientific Research Projects (BAP)] under Grant [16.FEN.BİL.12.].

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C M and H E involved in study conception and design. C M and H E involved in acquisition of data. CM, HE and HY participated in analysis and interpretation of data. CM, HE and HY drafted the manuscript. HE critically revised the manuscript.

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Correspondence to Hüseyin Enginar.

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Mertgenç, C., Enginar, H. & Yılmaz, H. Microencapsulation of Fragrance with Polyurethane—Urea and Application on Different Fabrics. Iran J Sci Technol Trans Sci 45, 1677–1687 (2021). https://doi.org/10.1007/s40995-021-01135-y

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  • DOI: https://doi.org/10.1007/s40995-021-01135-y

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