Studies on the mechanical, thermal, morphological and barrier properties of nanocomposites based on poly(vinyl alcohol) and nanocellulose from sugarcane bagasse

Mandal, Arup; Chakrabarty, Debabrata

doi:10.1016/j.jiec.2013.05.003

Cited by 227 publications

(114 citation statements)

References 35 publications

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“…The incorporation of nanocellulose into PVA did not deteriorate the intensity of the (110) plane due to the presence of crystalline cellulose from nanocellulose in the (200) plane. However, it was found that the crystallinity of the PVA/nanocellulose composite with the presence of 3.0 wt% nanocellulose was lower than the neat PVA matrix; the original crystallinity of the PVA matrix was never achieved in the nanocellulose-reinforced PVA composite due to heterogeneous phase nucleation in the synthesizing solution (Mandal and Chakrabarty 2014). The peak for the PVA/nanocellulose/nanosilica composite…”

Section: X-ray Diffractionmentioning

confidence: 99%

Preparation and Characterization of Polyvinyl Alcohol-Based Composite Reinforced with Nanocellulose and Nanosilica

et al. 2015

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This work reported the thermomechanical and morphological properties of polyvinyl alcohol (PVA) nanocomposites reinforced with nanosilica and oil palm empty fruit bunches derived nanocellulose. The nanocomposites were characterized by mechanical, thermal, XRD, optical, and morphological studies. Uniformity dispersion of the nanofillers at a 3 wt% concentration has been shown by scanning electron microscopy, whereas the changes in crystallinity were demonstrated by X-ray diffraction analysis. Addition of nanosilica resulted in increased thermal stability of PVA/nanocellulose composites due to the reduction in mobility of the matrix molecules. Visible light transmission showed that the addition of 0.5 wt% nanosilica only slightly reduced the light transmission of PVA/nanocellulose composites with 3 wt% nanocellulose. The addition of a small concentration of nanosilica successfully improved the tensile and modulus properties of PVA/nanocellulose composite films. The increases in tensile strength and thermal stability were evidence of a nanosilica contribution in PVA/nanocellulose composites, inducing reinforcement, as detected by the thermomechanical properties.

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Section: X-ray Diffractionmentioning

confidence: 99%

Preparation and Characterization of Polyvinyl Alcohol-Based Composite Reinforced with Nanocellulose and Nanosilica

et al. 2015

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“…In addition due to bonds between the OH groups of the cellulose nanoparticles, a rigid network is formed, and the transfer of tensile is facilitate and mechanical properties of the polymer matrix is increased [17].…”

Section: Introductionmentioning

confidence: 99%

PHBV/cellulose nanofibrils composites obtained by solution casting and electrospinning process

2017

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In this work, nanobiocomposites of poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) reinforced with cellulose nanofibrils (CNFs) were produced by electrospinning and solution casting process. CNFs were obtained by sulfuric acid hydrolysis from Imperata brasiliensis fibers. Nanocomposites loaded with 1 (wt. %) of CNFs were prepared using a mixture of solvents chloroform (CHCl 3 ): N, N-dimethylformamide (DMF), in the ratio of 78:22 with 30 h of solubilization. Films by solution casting were obtained in a petri dish, at 50 °C for 1 hour, using drying casting temperature of 153 °C. Mats by electrospinning were obtained with a needle 20x10, drum collector rotation 27 rpm, and working distance of 10 cm. Films and mats were characterized by Scanning Electron Microscopy (SEM), X-ray diffraction (XRD) and Differential Scanning Calorimetry (DSC). It was possible to conclude that for nanobiocomposites obtained by solution casting, the addition of CNFs did not affect the transparency of the films, but provided a significant increase in the crystallization rate as observed by DSC analysis, while for electrospinning nanobiocomposites a considerable improvement in process increasing electrospinning time and quality of the mats manufactured, were observed.

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“…Penggabungan sejumlah kecil filler berukuran nanometer dapat menghasilkan komposit dengan sifat yang lebih baik untuk aplikasi industri dan teknologi 1 . Bahan kemasan berbasis biopolimer belum banyak digunakan dalam industri kemasan, terutama karena sifat mekanik yang kurang baik.…”

Section: Pendahuluanunclassified

KARAKTERISTIK MEKANIK, TERMAL DAN MORFOLOGI FILM POLIVINIL ALKOHOL DENGAN PENAMBAHAN NANOPARTIKEL ZnO DAN ASAM STEARAT uNTUK KEMASAN MULTILAYER

Pamela¹,

Syarief²,

Iriani³

et al. 2017

Jurnal Pasca

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PVA (polivinil alkohol) merupakan polimer biodegradable hidrofilik yang memiliki sifat dapat membentuk film dengan baik, larut dalam air, mudah dalam proses, tidak beracun, dan <em>biocompatible</em>. Sifat tersebut berguna dalam banyak aplikasi industri seperti agen pelapis, perekat dan sebagai komponen dari film kemasan yang fleksibel. Secara umum penggabungan nanopartikel ZnO dalam matriks polivinil alkohol dapat meningkatkan sifat mekanik dan termal sehingga memudahkan aplikasinya dalam proses yang melibatkan panas. Tujuan dari penelitian ini adalah untuk menentukan formulasi optimum menghasilkan biofilm nanokomposit berbasis polivinil alkohol dengan penambahan nanopartikel ZnO dan asam stearat. Percobaan dilakukan dengan mencampurkan larutan PVA dengan berbagai konsentrasi nanopartikel ZnO dan asam stearat. Karakterisasi meliputi kuat tarik, elongasi, termal, morfologi dan kristalinitas. Hasil penelitian menunjukkan bahwa penambahan 3.4% nanopartikel ZnO dan 6.6% asam stearat dapat meningkatkan kuat tarik, menurunkan elongasi, kristalinitas dan sifat termal dari film bionanokomposit yang dihasilkan.

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Studies on the mechanical, thermal, morphological and barrier properties of nanocomposites based on poly(vinyl alcohol) and nanocellulose from sugarcane bagasse

Cited by 227 publications

References 35 publications

Preparation and Characterization of Polyvinyl Alcohol-Based Composite Reinforced with Nanocellulose and Nanosilica

Preparation and Characterization of Polyvinyl Alcohol-Based Composite Reinforced with Nanocellulose and Nanosilica

PHBV/cellulose nanofibrils composites obtained by solution casting and electrospinning process

KARAKTERISTIK MEKANIK, TERMAL DAN MORFOLOGI FILM POLIVINIL ALKOHOL DENGAN PENAMBAHAN NANOPARTIKEL ZnO DAN ASAM STEARAT uNTUK KEMASAN MULTILAYER

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