Investigation of rheological properties and hydrolytic degradation of biodegradable films of PLA/PCL/ZnO nanocomposites:
محل انتشار: اولین کنفرانس بین المللی فناوری های نوین در علوم
سال انتشار: 1396
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 519
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شناسه ملی سند علمی:
CMTS01_049
تاریخ نمایه سازی: 17 آبان 1396
چکیده مقاله:
In this research, solvent casting method was applied to prepare the biodegradable and biocompatible poly lactic acid (PLA)/polycaprolactone (PCL)/zinc oxide (ZnO) nanocomposites. Nanocomposite films were manufactured with avarying ZnO concentration. The hydrolytic degradation behavior of the selected blend composition was assessed and the effects of the ZnO concentrations on the rheological properties of the nanocomposites were investigated. Theobtained results demonstrated that the PH decreased with the increase of ZnO concentrations, demonstrating that ZnO played a key role as an initiator for the hydrolysis of ester bonds in PLA/PCL. Also the storage modulus and complex viscosity decreased with increasing zinc oxide content, which can be attributed to the role of zinc oxide nanoparticles in degradation of polyester matrix.
کلیدواژه ها:
نویسندگان
Yeganeh Ahmadzadeh
Polymer Engineering Department, Faculty of Engineering, Golestan university, Gorgan, Iran
Amir Babaei
Polymer Engineering Department, Faculty of Engineering, Golestan university, Gorgan, Iran
Alireza Goudarzi
Polymer Engineering Department, Faculty of Engineering, Golestan university, Gorgan, Iran
Mehdi Haji Abdolrasouli
Industrial Engineering Department, Faculty of Engineering, Hormozgan university, Hormozgan, Iran