Prediction of thermal stability, crystallinity and thermomechanical properties of poly(ethylene oxide)/clay nanocomposites with artificial neural networks

Burgaz, Engin; YAZICI, Mehmet; Kapusuz, Murat; Alisir, Sevim Hamamci; Özcan, Hakan

doi:10.1016/j.tca.2013.10.032

Cited by 27 publications

(11 citation statements)

References 45 publications

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“…The coordination of ether oxygens of PEO with H + could have changed the ether oxygen vibrational modes, such as the COC asymmetric and symmetric stretching modes . The results observed from the FTIR spectra are quite similar to those in a literature report on the sodium cations of clay . Meanwhile, we observed that the intensity of the COC deformation mode of PL–PI‐15, shown in Figure (d), was weaker than that of PEO–LiClO 4 without any clay filler but was more intense than that of PL–IDE‐15.…”

Section: Resultssupporting

confidence: 87%

“…Figure (c) shows the large broad band of asymmetric CH 2 stretching, which belonged to PEO between 3000 and 2750 cm −1 , with two narrow bands at 2741 and 2694 cm −1 . The bands around 1145, 1117, and 1088 cm −1 were related to the symmetric and asymmetric stretching modes of the COC groups . As shown in Figure (e), the intensity of these bands in the FTIR region 1200–1000 cm −1 decreased when exfoliated illite was added to the PEO matrix.…”

Section: Resultsmentioning

confidence: 83%

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Crystallinity, ion conductivity, and thermal and mechanical properties of poly(ethylene oxide)–illite nanocomposites with exfoliated illite as a filler

Zhen

Chi

Wang

et al. 2016

J of Applied Polymer Sci

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Illite particles were exfoliated by the intercalation and subsequent deintercalation of dimethyl sulfoxide (DMSO) in the interlayer of illite, and the exfoliated illite particles were used to prepare a novel poly(ethylene oxide) (PEO)–illite nanocomposite. The resulting exfoliated illite and PEO–illite nanocomposites were characterized by X‐ray diffraction (XRD), fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), differential scanning calorimetry, ion conductivity testing, thermogravimetry analysis, and mechanical testing. The XRD results showed that the acid treatment of illite to exchange K+ in the interlayer of illite with H+ was a necessary condition for the DMSO intercalation. SEM micrographs confirmed the exfoliation of the illite particles in the process of DMSO deintercalation from the interlayer of the illite–DMSO intercalation complex. A good dispersion of exfoliated illite in the PEO matrix was also confirmed. A gradual decrease in the PEO crystallinity in the PEO–illite nanocomposites was observed with increasing exfoliated illite concentration. The ion conductivity of the nanocomposites gradually increased with the filler content and reached 3.21 × 10−5 S/cm at an illite concentration of 20 wt %. The formation of an amorphous region around the exfoliated illite was beneficial for Li+‐ion conduction. The ion conductivity significantly increased when the amorphous regions were connected to each other to form a conducting path for Li+ ions with a high filler concentration of greater than 10 wt %. Meanwhile, the thermooxidative stability and mechanical properties of the PEO–illite nanocomposites were also enhanced when exfoliated illite was introduced into the polymer matrix. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44226.

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Section: Resultssupporting

confidence: 87%

Section: Resultsmentioning

confidence: 83%

Crystallinity, ion conductivity, and thermal and mechanical properties of poly(ethylene oxide)–illite nanocomposites with exfoliated illite as a filler

Zhen

Chi

Wang

et al. 2016

J of Applied Polymer Sci

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“…The increase of T g and storage modulus in polymer due to nanoclay addition was also reported by few authors. 33,34 The Tan d peak curves indicate the peak values are in increasing order from untreated, NaOH and to NaOH/clay treated fiber composites. The increased peak suggests increased damping due to nanoclay addition as observed elsewhere.…”

Section: Dynamic Mechanical Propertiesmentioning

confidence: 99%

Nanoclay infused banana fiber and its effects on mechanical and thermal properties of composites

Mohan

Kanny

2015

Journal of Composite Materials

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The objective of this work is to infuse nanoclay particles into the banana fiber and study the morphological and structural characteristics. Nanoclays were infused into the fibers by shear induced force with the aid of alkaline (NaOH) chemical treatment. About 6 wt.% of nanoclays were infused into the banana fibers by this method. The short banana fiber reinforced epoxy composites were prepared by resin casting method in which the critical length (l c ) and critical volume fraction (V fc ) of the fibers were determined. The nanoclay infused fibers were compared with untreated and alkaline treated fibers. The result suggests a positive effect on tensile, interfacial, and thermal properties of fibers due to nanoclay infusion. The tensile, shear, and dynamic mechanical analysis (DMA) of composites were studied, and the result shows superior improvement of these properties in nanoclay infused fiber composites.

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“…Bunun nedeni karışık kil yapısı, numune hazırlama ve kil tabakalarının yönlenme durumlarına bağlı olarak (interkele veya eksfoliye) verilerin yorumlamasında yetersiz olmasıdır [5,10]. [38].…”

Section: şEkil 5 X-ışınlarının Bir Kristal Tarafından Kırılmasıunclassified

Polimerler-Kil Nanokompozitlerinde Kullanılan Bazı Yüzey Analiz Yöntemleri

Çankaya

Sökmen

2021

Teknik Bilimler Dergisi

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Polimer içerikli malzemeler, doğal ya da sentetik yapıdaki polimerler ile hazırlanan, nanometre boyutunda analiz edilebilen matris sistemlerdir. Nanoölçek seviyesinde yapılar içeren malzemelerin özellikleri makroskopik ölçekten tamamen farklıdır. Nano boyuttaki malzemenin iletim özellikleri (momentum, enerji ve kütle), optik, elektronik, manyetik ve kimyasal özellikleri değişir. Polimerlere kil katkısı ile polimer/kil nanokompozitler elde edilir ve çeşitli spektroskopik yöntemler kullanılarak polimer/kil nanokompozitlerin termal, mekanik ve yüzey karakterizasyonu yapılabilmektedir. Bu çalışmada, yüzey analiz metotlarında kullanılan İnfrared Spektroskopisi (FTIR), X-Işınları Kırınım Yöntemi (XRD), Taramalı Elektron Mikroskobu (SEM), Geçirimli Elektron Mikroskobu (TEM), Atomik Kuvvet Mikroskobu (AFM) hakkında bilgi verilmiştir.

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Prediction of thermal stability, crystallinity and thermomechanical properties of poly(ethylene oxide)/clay nanocomposites with artificial neural networks

Cited by 27 publications

References 45 publications

Crystallinity, ion conductivity, and thermal and mechanical properties of poly(ethylene oxide)–illite nanocomposites with exfoliated illite as a filler

Crystallinity, ion conductivity, and thermal and mechanical properties of poly(ethylene oxide)–illite nanocomposites with exfoliated illite as a filler

Nanoclay infused banana fiber and its effects on mechanical and thermal properties of composites

Polimerler-Kil Nanokompozitlerinde Kullanılan Bazı Yüzey Analiz Yöntemleri

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