Farayandno

Farayandno

TPU membrane containing biodegradble PLA for CO2 /N2 separation

Document Type : Original research

Authors
Hossein Alizadeh 1
Mahdi Elyasi Kojabad 2
لطفی مایان سفلی Lotfi mayan sofla 1
Fatemeh Sajedi bejandi 1
1 Faculty of Polymer Engineering, Sahand University of technology, Tabriz, Iran
2 Department of Chemical Engineering, Faculty of Engineering, Behbahan Khatam Alanbia University
10.22034/farayandno.2025.2048914.1983
Abstract
In this research, polymeric membrane with high chemical and mechanical properties was prepared for CO2 separation using biodegradble material. To this end, thermoplastic polyurethane (TPU) was synthesized from its raw materials and then was blended with polylactic acid (PLA). Fourier transform infrared spectroscopy (FTIR), X-ray diffraction patterns (XRD), Atomic force microscopy (AFM), differential scanning calorimetry (DSC) and tensile analysis were used to assess the chemical, physical and mechanical properties of the membranes. These analyses confirmed the chemical structure of the TPU and blends and observed that in the TPU-20%, the degree of crystallization reduced and the glass transition temperature is increased. It was also found that with the addition of PLA, the Tensile strength and Elongation at break increased. The optimum permeability was observed in TPU-20% (80 Barrer) and the better selectivity was obtained in TPU-30% (310). Ultimately, this study yielded a biodegradable membrane exhibiting excellent CO2 separation capabilities.
Keywords
Thermoplastic Polyurethane
Polylactic Acid
CO2 Separation
Membrane

Subjects

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