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Journals / Uşak Üniversitesi Fen ve Doğa Bilimleri Dergisi / 2024 / Cilt: 8 Sayı: 2

Effect of surface modification of hydrotalcite on plasticizer diffusion from hydrotalcite/PVC/chitosan composite films into air

Hidrotalsit/PVC/kitosan kompozit filmlerden havaya plastikleştirici difüzyonu üzerinde hidrotalsitin yüzey modifikasyonunun etkisi

Emine Şanli(UŞAK ÜNİVERSİTESİ, FEN BİLİMLERİ ENSTİTÜSÜ)0000-0001-8850-8404
Ayşe Pınar Tüzüm Demir(UŞAK ÜNİVERSİTESİ)0000-0002-0822-5728
Pages
148–157
Publication Date
2024-12-30
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AI Summary & Key Takeaways

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

The results show that the adding inorganic filler to PVC, modifying the filler with chitosan, and cross-linking the filler generally reduced to the diffusivity.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, to reduce plasticizer migration from polyvinyl chloride (PVC) films, the effect of surface modification of the filler was invastigated.
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Key Findings & Data:Firstly, chitosan crosslinked with glutaraldehyde (GA) and 1-(3-dimethylaminopropyl)-3-ethyl-karbodimide (EDC), then it was coated onto the surface of the filler for the filler modification.
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Conclusion & Impact:The results show that the adding inorganic filler to PVC, modifying the filler with chitosan, and cross-linking the filler generally reduced to the diffusivity.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:PVC · Hidrotalsit · kitosan

Abstract

In this study, to reduce plasticizer migration from polyvinyl chloride (PVC) films, the effect of surface modification of the filler was invastigated. Therefore, surface of the inorganic filler was coated with crosslinked chitosan. The effect of inorganic filler (hydrotalcite), modification of the filler with chitosan, cross-linking of and crosslinker type on the plasticizer diffusion of the films were examined. Firstly, chitosan crosslinked with glutaraldehyde (GA) and 1-(3-dimethylaminopropyl)-3-ethyl-karbodimide (EDC), then it was coated onto the surface of the filler for the filler modification. Then, plastisol pastes were prepared from the formulations specified in the method. A small amount of plastisols from which air bubbles were removed were taken and 150μm thick films were drawn on the glass surface, these films were gelled in an oven, and plastigel films were obtained. These films were subjected to thermal aging. These studies were subjected in the oven at certain temperatures and times. Diffusion of plasticizer and oxidation were analyzed byFT-IR spectroscopy. The diffusion coefficient and activation energies for the migration of plasticizers were calculated by mass loss. The results show that the adding inorganic filler to PVC, modifying the filler with chitosan, and cross-linking the filler generally reduced to the diffusivity.

Özet

Bu çalışmada, polivinil klorür (PVC) filmlerden plastikleştirici migrasyonunun azaltılması için dolgu maddesinin yüzey modifikasyonunun etkisi araştırılmıştır. Bu nedenle inorganik dolgunun yüzeyi çapraz bağlı kitosan ile kaplanmıştır. İnorganik dolgu maddesinin (hidrotalsit), dolgu maddesinin kitosan ile modifikasyonunun, çapraz bağlama ve çapraz bağlayıcı tipinin filmlerin plastikleştirici difüzyonuna etkisi incelenmiştir. Öncelikle kitosan glutaraldehit (GA) ve 1-(3-dimetilaminopropil)-3-etil-karbodimid (EDC) ile çapraz bağlandı, daha sonra dolgu modifikasyonu için dolgunun yüzeyine kaplandı. Daha sonra yöntemde belirtilen formülasyonlardan plastisol macunları hazırlandı. İçinde hava kabarcıkları uzaklaştırılmış az miktarda plastisol alınarak cam yüzeye 150μm kalınlığında filmler çizildi, bu filmler fırında jelleştirildi ve plastijel filmler elde edildi. Bu filmler termal yaşlanmaya tabi tutuldu. Bu çalışmalar belirli sıcaklık ve sürelerdeki fırında gerçekleştirilmiştir. Plastikleştiricinin difüzyonu ve oksidasyonu FT-IR spektroskopisi ile analiz edildi. Plastikleştiricilerin migrasyonu için difüzyon katsayısı ve aktivasyon enerjileri kütle kaybı ile hesaplandı. Sonuçlar, PVC'ye inorganik dolgu maddesi eklenmesinin, dolgu maddesinin kitosan ile değiştirilmesinin ve dolgu maddesinin çapraz bağlanmasının genel olarak yayılmayı azalttığını göstermektedir.

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Cite This Article

Şanli, E., Demir, A. P. T. (2024). Effect of surface modification of hydrotalcite on plasticizer diffusion from hydrotalcite/PVC/chitosan composite films into air. Uşak Üniversitesi Fen ve Doğa Bilimleri Dergisi, Cilt: 8 Sayı: 2, 148–157. https://doi.org/10.47137/usufedbid.1522771

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