KaydedilenlerDerginizi ekleyin

Dergiler / Journal of the Turkish Chemical Society Section A: Chemistry / 2018 / Cilt: 5 - Sayı: 2

PVA Nanocomposites Of Organoclays Obtained Using Different Cationic Surfactants

Cüneyt H. Ünlü
Sevim İşçi Turutoğlu
Oya Galioğlu Atıcı
Ömer Işık Ece
Nurfer Güngör
Sayfa
415–432
Yayın Tarihi
2018-01-01
DOI
—
🏛️Bu makalenin bibliyografik verileri ve tam metin bağlantısı DergiPark üzerinden sağlanmıştır.
DergiPark Kaydı ↗
✨

Yapay Zeka Hızlı Bakış & Çıkarımlar

AI Insight
⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Also activation energy of the decomposition was observed ca. 40 kj mol-1 higher than pristine PVA.

📌 3 Maddede Bu Makale

🎯
Amaç & Hipotez:This study is about preparation of two different organoclays with cationic surfactants and their poly(vinyl alcohol) nanocomposites with increased thermal and mechanical behavior.
📊
Temel Bulgular & Veri:Results indicated an absolute decrease in zeta potential about 20 mV for C-MMT, and 14 mV for D-MMT indicating flocculation and coating of the surface.
💡
Sonuç & Katkı:Also activation energy of the decomposition was observed ca. 40 kj mol-1 higher than pristine PVA.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Polymer/clay nanocomposites · Organoclay · Poly(vinyl alcohol) (PVA)

Abstract

This study is about preparation of two different organoclays with cationic surfactants and their poly(vinyl alcohol) nanocomposites with increased thermal and mechanical behavior. Organoclays were prepared modifying clay mineral with solution intercalation method using aqueous solutions of cationic surfactants dodecyltrimethylammonium bromide (DTABr) and cetylpyridinium bromide (CPBr). Obtained organoclays (D-MMT and C-MMT for DTABr/MMT and CPBr/MMT, respectively) were characterized using different methods including zeta potential and XRD. Results indicated an absolute decrease in zeta potential about 20 mV for C-MMT, and 14 mV for D-MMT indicating flocculation and coating of the surface. Moreover measurements indicated that interlayer distance increased based on basal spacing peak shift whose value was 1.27 nm for NaMMT, whereas 1.40 nm for D-MMT, and 1.75 nm for C-MMT. The organoclays were used in preparation of PVA/clay nanocomposites; thermal stability of the nanocomposites were determined using TGA, while mechanical strength measurements were done using DMA. Maximum thermal decomposition temperature of the pristine PVA and nanocomposites were compared and an average increase of 4°C were observed. Also activation energy of the decomposition was observed ca. 40 kj mol-1 higher than pristine PVA.

🔖

Bu Makaleye Atıf Yap

Ünlü, C. H., Turutoğlu, S. İ., Atıcı, O. G., Ece, Ö. I., Güngör, N. (2018). PVA Nanocomposites Of Organoclays Obtained Using Different Cationic Surfactants. Journal of the Turkish Chemical Society Section A: Chemistry, Cilt: 5 - Sayı: 2, 415–432. https://ajindex.com/articles/781377

📄 Tam Metin PDF Okuyucu

📄

PDF görüntüleyici hazırlanıyor...

Kaynakça (3)

  1. Sinha Ray S, Okamoto M. Polymer/layered silicate nanocomposites: a review from preparation to processing. Progress in Polymer Science 2003;28:1539–641. DOI: 10.1016/j.progpolymsci.2003.08.002. Fahmy TYA, Mobarak F. Nanocomposites from natural cellulose fibers filled with kaolin in presence of sucrose. Carbohydrate Polymers 2008;72:751–5. DOI: 10.1016/j.carbpol.2008.01.008. Pavlidou S, Papaspyrides CD. A review on polymer-layered silicate nanocomposites. Progress in Polymer Science 2008;33:1119–98. DOI: 10.1016/j.progpolymsci.2008.07.008. Mallakpour S, Dinari M. Biomodification of cloisite Na+ with L-methionine amino acid and preparation of poly(vinyl alcohol)/organoclay nanocomposite films. J Appl Polym Sci 2012;124:4322–30. DOI: 10.1002/app.35540. Wang B, Yin Y, Liu C, Yu S, Chen K. Synthesis and characterization of clay/polyaniline nanofiber hybrids. J Appl Polym Sci 2013;128:1304–12. DOI: 10.1002/app.38472. Utracki LA. Clay-containing polymeric nanocomposites. Shrewsbury: Rapra Technology Ltd; 2004. ISBN:1-85957-437-8.
  2. Mandalia T, Bergaya F. Organo clay mineral–melted polyolefin nanocomposites Effect of surfactant/CEC ratio. Journal of Physics and Chemistry of Solids 2006;67:836–45. DOI: 10.1016/j.jpcs.2005.12.007. Kokabi M, Sirousazar M, Hassan ZM. PVA–clay nanocomposite hydrogels for wound dressing. European Polymer Journal 2007;43:773–81. DOI: 10.1016/j.eurpolymj.2006.11.030. Rhim J-W, Park H-M, Ha C-S. Bio-nanocomposites for food packaging applications. Progress in Polymer Science 2013;38:1629–52. DOI: 10.1016/j.progpolymsci.2013.05.008. Mermut AR, Lagaly G. Baseline Studies of the Clay Minerals Society Source Clays: Layer-Charge Determination and Characteristics of Those Minerals Containing 2:1 Layers. Clays and Clay Minerals 2001;49:393–7. DOI: 10.1346/CCMN.2001.0490506. Lagaly G, Reese M, Abend S. Smectites as colloidal stabilizers of emulsions I. Preparation and properties of emulsions with smectites and nonionic surfactants. Applied Clay Science 1999;14:83–103. DOI: 10.1016/S0169-1317(98)00051-9.
  3. Turhan Y, Alp ZG, Alkan M, Doğan M. Preparation and characterization of poly(vinylalcohol)/modified bentonite nanocomposites. Microporous and Mesoporous Materials 2013;174:144–53. DOI: 10.1016/j.micromeso.2013.03.002. Mallakpour S, Dinari M. Novel bionanocomposites of poly(vinyl alcohol) and modified chiral layered double hydroxides: Synthesis, properties and a morphological study. Progress in Organic Coatings 2014;77:583–9. DOI: 10.1016/j.porgcoat.201