Superior Pebax‐1657/amine‐modified halloysite nanotubes mixed‐matrix membranes to improve the CO 2 / CH 4 separation efficiency
Abstract In the present study, halloysite nanotubes (HNTs) were firstly functionalized using N‐β‐(aminoethyl)‐γ‐aminopropyltrimethoxy silane and then employed as nanofillers to fabricate mixed‐matrix membranes including poly (ether‐block‐amide) polymer as the primary material. To characterize the HN...
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| Published in | Journal of applied polymer science Vol. 138; no. 31 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
15.08.2021
|
| Online Access | Get full text |
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| Summary: | Abstract
In the present study, halloysite nanotubes (HNTs) were firstly functionalized using N‐β‐(aminoethyl)‐γ‐aminopropyltrimethoxy silane and then employed as nanofillers to fabricate mixed‐matrix membranes including poly (ether‐block‐amide) polymer as the primary material. To characterize the HNTs, as well as the obtained membranes, thermal gravimetric analysis, Fourier‐transform infrared spectroscopy, X‐ray powder diffraction, and Field emission scanning electron microscopy analyses were employed. Effects of the modified and pure HNTs loadings, as well as feed pressure on CH
4
and CO
2
permeabilities and ideal CO
2
/CH
4
selectivity of the prepared membranes, were surveyed. The experimental permeation results indicated that incorporation of 1.5 wt% of amine‐functionalized HNTs into the polymer matrix improves CO
2
permeability and the ideal selectivity by nearly 37 and 24%, respectively, due to the higher CO
2
adsorption capacity of the amine‐functionalized HNTs. |
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| ISSN: | 0021-8995 1097-4628 |
| DOI: | 10.1002/app.50749 |