Chemical Stability and Additive Leach Out in Polyethersulfone Membranes Blended with Dragon Blood Resin: An Investigative Study

Aulia Chintia Ambarita, Sri Mulyati*, Nasrul Arahman, Muhammad Roil Bilad, Bahar Yavuztürk Gül, Sevde Korkut, İsmail Koyuncu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Dragon blood resin (DBR) has been reported as an effective bio-based additive for polymeric membrane fabrication. It improves permeability and antifouling properties, but its weak chemical bond makes it susceptible to leaching. This study investigates the chemical stability and leaching behavior of polyethersulfone (PES) membranes modified with DBR in an alkaline solution. The study involved immersing two types of PES-based membranes, one loaded with 3% DBR (M-3) during the fabrication and one without (M-0), in a 0.01-N NaOH solution for 5 days. The results show that M-0 had good resistance to high alkaline solutions, while M-3 was less stable. Pure water permeability and water contact angle increased with immersion time, with an average percentage increase of 90.74 and 19.48%, respectively. The leaching of DBR from the PES membrane could be attributed to its polarity and the breaking of the DBR bonds, causing them to break apart into smaller molecules. The leaching of DBR also leaves a void that increases the pore size. This report provides useful information for the optimal design of a bio-based PES membrane. Graphical Abstract: (Figure presented.)

Original languageEnglish
Pages (from-to)1217-1227
Number of pages11
JournalKorean Journal of Chemical Engineering
Volume41
Issue number4
DOIs
Publication statusPublished - Mar 2024

Bibliographical note

Publisher Copyright:
© The Author(s), under exclusive licence to Korean Institute of Chemical Engineers, Seoul, Korea 2024.

Funding

This research was funded by The Institution of Research and Community Service, Syiah Kuala University, Banda Aceh, Indonesia, under the Program Riset Unggulan USK Percepatan Doctor ‘PRUU-PD’ scholarship 2023.

FundersFunder number
Institution of Research and Community Service
Universitas Syiah Kuala2023

    Keywords

    • Bio-based additive
    • Chemical stability
    • Dragon blood resin
    • Leach out
    • Polyethersulfone membrane

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