Investigating of Transesterification and Properties of Polyethylene Terephthalate/Polylactic Acid Blend Film
محل انتشار: نشریه نساجی و پلیمر، دوره: 11، شماره: 2
سال انتشار: 1402
نوع سند: مقاله ژورنالی
زبان: فارسی
مشاهده: 78
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شناسه ملی سند علمی:
JR_ITAST-11-2_001
تاریخ نمایه سازی: 11 بهمن 1402
چکیده مقاله:
Because of the growing need for more sustainable materials, the production of bio-based and biodegradable plastic products has been rapidly increasing in recent years. These materials can be used in a variety of applications, the majority of which are in the packaging industry. In this research blend of polylactic acide (PLA) with polyethylene terephthalate (PET) was prepared. The surface tension measurements were used to estimate interfacial tension values between the two blend components and the findings showed good adhesion between the two components. Morphology was investigated through scanning electron microscopy (SEM) and the results showed PET and PLA was immiscible, but compatible with each other, characteristics also reflected in the microstructure. FTIR studies illustrated the PLA structure in the PET matrix. Interactions were analyzed by ۱H NMR and the exchange reaction was confirmed. DSC results showed shifting in glass transition temperatures (Tg) that indicate interactions between these materials. Because of formed copolymers through transesterification, the crystallization process in the film became difficult as the PLA was added to the PET matrix. Presence of PET crystals in the blend film was confirmed by X-ray scattering patterns.
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نویسندگان
Maryam Kheirandish
Department of Textile Engineering, Amirkabir University of Technology, P.O. Box ۱۵۸۷۵-۴۴۱۳, Tehran, Iran
Mohammad Reza Mohades Mojtahedi
Department of Textile Engineering, Amirkabir University of Technology, P.O. Box ۱۵۸۷۵-۴۴۱۳, Tehran, Iran
Hossein Nazokdast
Department of Polymer Engineering, Amirkabir University of Technology, P.O. Box ۱۵۸۷۵-۴۴۱۳