1403/02/06
عبد اله عمرانی

عبد اله عمرانی

مرتبه علمی: استاد
ارکید:
تحصیلات: دکترای تخصصی
اسکاپوس:
دانشکده: دانشکده شیمی
نشانی:
تلفن: 01135302383

مشخصات پژوهش

عنوان
Influences of modified bacterial cellulose nanofibers (BCNs) on structural, thermophysical, optical, and barrier properties of poly ethylene-co-vinyl acetate (EVA) nanocomposite
نوع پژوهش
JournalPaper
کلیدواژه‌ها
Ethylene-vinyl acetate copolymer (EVA) Bacterial cellulose nanofiber (BCN) Solution casting Thermal properties Surface treatments
سال
2018
مجله International Journal of Biological Macromolecules
شناسه DOI
پژوهشگران Shila Shirdel Ghadikolaei ، Abdollah Omrani ، Morteza Ehsani

چکیده

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.