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Journals / Uludağ Üniversitesi Mühendislik Fakültesi Dergisi / 2026 / Cilt: 29 Sayı: 1

THE EFFECT OF ESSENTIAL OIL ON FIBER MORPHOLOGY AND SURFACE PROPERTIES IN COAXIAL NANOFIBERS

Koaksiyel Nanoliflerde Esansiyel Yağların Lif Morfolojisi ve Yüzey Özellikleri Üzerindeki Etkisi

Nursema Pala Avcı(MARMARA ÜNİVERSİTESİ)0000-0002-7987-4063
Nebahat Aral Yılmaz(YEDİTEPE ÜNİVERSİTESİ)0000-0001-6297-8088
Fatma Banu Nergis(ISTANBUL TECHNICAL UNIVERSITY)0000-0001-6010-6497
Pages
125–138
Publication Date
2024-04-22
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AI Summary & Key Takeaways

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

In conclusion, it was observed that the nanofiber morphology and surface properties changed when different essential oils and surfactant were added to the core-shell nanofibers.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, core-shell nanofibers were produced by using hydrophilic polyvinylpyrrolidone (PVP) polymer in the core and hydrophobic poly(e-caprolactone) (PCL) polymer in the shell.
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Key Findings & Data:Essential oil added nanofiber structures were developed by adding thyme oil (TEO) and borage oil (BO) in the PVP core part by using Triton X 100 (TX-100) as the surfactant. 8% PVP-8% PCL nanofibers were produced by adding TEO, BO and a 1:1 volume/volume mixture of these two (TEO:BO) to the PVP solution.
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Conclusion & Impact:In conclusion, it was observed that the nanofiber morphology and surface properties changed when different essential oils and surfactant were added to the core-shell nanofibers.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Nanolif · Esansiyel Yağ · Koaksiyel Elektroeğirme

Abstract

In this study, core-shell nanofibers were produced by using hydrophilic polyvinylpyrrolidone (PVP) polymer in the core and hydrophobic poly(e-caprolactone) (PCL) polymer in the shell. Essential oil added nanofiber structures were developed by adding thyme oil (TEO) and borage oil (BO) in the PVP core part by using Triton X 100 (TX-100) as the surfactant. 8% PVP-8% PCL nanofibers were produced by adding TEO, BO and a 1:1 volume/volume mixture of these two (TEO:BO) to the PVP solution. Addition of essential oil and surfactant to the solutions resulted in different conductivity and viscosity values. SEM images were analyzed and it was observed that nanofiber diameters increased when essential oil and surfactant were added to the core of the coaxial nanofibers. Pristine, TEO added, TEO:BO added and BOadded nanofibers were calculated as 145 ± 66, 233 ± 150, 245 ± 165 and 300 ± 124 nm, respectively. Besides, water contact angle measurements showed that TX-100 and essential oil additives caused high hydrophilization of nanofiber by changing the hydrophobic nature of PCL. While the contact angle of the 8% PVP-8% PCL sample without additives were 98°, the contact angle of the oil and surfactant containing samples were measured as 0°. In conclusion, it was observed that the nanofiber morphology and surface properties changed when different essential oils and surfactant were added to the core-shell nanofibers.

Özet

Bu çalışmada, çekirdekte hidrofilik polivinilpirolidon (PVP) polimeri ve kabukta hidrofobik poli(ekaprolakton) (PCL) polimeri kullanılarak çekirdek-kabuk nanolifler üretilmiştir. Yüzey aktif madde olarak Triton (TX-100) kullanmak suretiyle PVP çekirdek kısmına kekik yağı (TEO) ve hodan yağı (BO) eklenerek esansiyel yağ katkılı nanolifli yapılar geliştirilmiştir. PVP çözeltisine TEO, BO ve bu ikisinin (TEO:BO) 1:1 hacim/hacim karışımı eklenerek %8 PVP-%8 PCL nanolifler üretilmiştir. Çözeltilere esansiyel yağ ve yüzey aktif maddenin eklenmesi, farklı iletkenlik ve viskozite değerleri ile sonuçlanmıştır. SEM görüntüleri analiz edilmiş ve koaksiyel nanoliflerin çekirdeğine esansiyel yağ ve yüzey aktif madde eklendiğinde nanolif çaplarının arttığı gözlenmiştir. Katkısız ve TEO, TEO:BO ile BO katkılı nanoliflerin çapları sırasıyla 145 ± 66, 233 ± 150, 245 ± 165 and 300 ± 124 nm olacak şekilde ölçülmüştür. Ayrıca su temas açısı ölçümleri, TX-100 ve esansiyel yağ katkı maddelerinin PCL'nin hidrofobik yapısını değiştirerek nanoliflerin yüksek oranda hidrofilizasyonuna neden olduğunu göstermiştir. Katkısız %8 PVP-%8 PCL nanoliflerin temas açıları 98° iken, yüzey aktif madde ve yağ içerikli numunelerin temas açılarının 0° olduğu tespit edilmiştir. Sonuç olarak, çekirdek-kabuk yapısındaki nanoliflere farklı yağlar ve yüzey aktif maddeler eklendiğinde nanolif morfolojisinin ve yüzey özelliklerinin değiştiği gözlemlenmiştir.

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Cite This Article

Avcı, N. P., Yılmaz, N. A., Nergis, F. B. (2024). THE EFFECT OF ESSENTIAL OIL ON FIBER MORPHOLOGY AND SURFACE PROPERTIES IN COAXIAL NANOFIBERS. Uludağ Üniversitesi Mühendislik Fakültesi Dergisi, Cilt: 29 Sayı: 1, 125–138. https://doi.org/10.17482/uumfd.1359257

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