عنوان
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Influences of modified bacterial cellulose nanofibers (BCNs) on structural, thermophysical, optical, and barrier properties of poly ethylene-co-vinyl acetate (EVA) nanocomposite
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نوع پژوهش
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مقاله چاپ شده
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کلیدواژهها
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Ethylene-vinyl acetate copolymer (EVA) Bacterial cellulose nanofiber (BCN) Solution casting Thermal properties Surface treatments
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چکیده
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The BCNswere chemicallymodified using acetic anhydride with the aimof improving its dispersion and interfacial adhesion. Acetylation of BCNswas confirmed by FT-IR spectroscopy. Morphology studies using TEMand SEM revealed that a reasonable dispersion of the modified BCNs in the EVA matrix was accomplished. The DSC data displayed a little shift in the Tg to higher temperatures with the incorporation of both modified and unmodified BCNs. Increased thermal stability of the nanocomposites consisting acetylated BCNswas confirmed by TGA technique. DMA measurements highlighted that the storage modulus increased and the damping properties decreased for the nanocomposites with regard to the neat EVA.
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پژوهشگران
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مرتضی احسانی (نفر سوم)، عبد اله عمرانی (نفر دوم)، شیلا شیردل قادیکلایی (نفر اول)
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