Permeation of Nitrogen and Oxygen Gases through Ethylene Propylene Diene Terpolymer and High Density Polyethylene/Ethylene Propylene Diene Terpolymer Blend Membranes

Kumar, Pawan; Anilkumar, S.; Varughese, K. T.; Thomas, Sabu

doi:10.1080/01496395.2012.690807

Cited by 5 publications

(1 citation statement)

References 32 publications

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“…Because of the low chain mobility of glassy polymers [60] and low condensability of O2 and N2 [35], the diffusion of gasses and, consequently, their kinetic diameter play an essential role in O2/ N2 separation [35,59]. Accordingly, the lower kinetic diameter of O2 (𝑑 𝑂 2 = 3.46 Å ) compared with that of N2 (𝑑 𝑁 2 = 3.64 Å) [59,61] causes higher permeability of O2 than N2 at all pressures. With increasing pressure from 2 to 4 and then from 4 to 6, the permeability of N2 increased by 2-fold and 3.5-fold, respectively.…”

Section: 8 Gas Permeation Testsmentioning

confidence: 99%

Zein Protein Obtained from Maize as a Novel Biodegradable Membrane Material for Oxygen/Nitrogen Separation: Membrane Fabrication and Characterization

et al. 2022

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In this study, biodegradable zein protein obtained from maize was used as a novel material to prepare a membrane for oxygen/nitrogen separation. Scanning electron microscopy (SEM), thermogravimetric analysis (TGA), tensile test, X-ray diffraction (XRD) spectroscopy, differential scanning calorimetry (DSC), biodegradability test, and attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy were conducted for characterizing the zein membrane, and membrane properties was compared with that of the polymeric membranes reported in the literature. The developed zein membrane showed a significantly high thermal stability. The mechanical properties of the zein membrane were higher or comparable to those of the previously reported dense membranes. In addition, biodegradation in compost was significantly higher than the other membranes reported in the literature. The developed zein membrane provided a significantly high oxygen/nitrogen selectivity at 2 bar, which was superior to most of the previously reported data on the neat biodegradable polymers with dense structure. The permeability of oxygen and nitrogen at 2

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