Articles
DOI DOI: 10.62441/actainnovations.vi.728

ANALYSIS OF THE CHARACTERISTICS AND PERFORMANCE OF POLYETHERSULFONE/POLYCAPROLACTONE MEMBRANES FABRICATED USING THE ELECTRIC FIELD METHOD FOR WATER FILTRATION APPLICATIONS

Agung Mataram1, Muhammad Satya Putra Gantada2, Rahma Dani3, Ahmad Fauzi Ismail4, Ida Sriyanti3, Jimmy Deswidawansyah Nasution5, Amrifan Saladin Mohruni2, Aneka Firdaus2, Ahmad Zamheri6, Rizky Brillian Yuliandi6
  1. 1 Universitas Sriwijaya
  2. 2 Departement of Mechanical Engineering Universitas Sriwijaya KM 32, Palembang – Prabumuli Street, Indralaya, Indonesia, 30862
  3. 3 Departement of Physics Education Universitas Sriwijaya KM 32, Palembang – Prabumuli str., Indralaya, Indonesia, 30862
  4. 4 Advanced Membrane Technology Research Centre (AMTEC) Universiti Teknologi Malaysia Block N29a, Skudai str., Johor Bahru, Johor, Malaysia, 81310 UTM
  5. 5 Departement of Mechanical Engineering Universitas Sriwijaya KM 32, Palembang – Prabumuli str., Indralaya, Indonesia, 30862
  6. 6 Department of Mechanical Engineering, Politeknik Negeri Sriwijaya, Palembang, South Sumatra, 30139, Indonesia

Abstract

This study developed polyethersulfone/polycaprolactone (PES/PCL) composite membranes using the electric field-assisted non-solvent induced phase separation (NIPS) method for water filtration applications. The effect of PES/PCL composition and electric field application on membrane morphology, hydrophilicity, mechanical properties, chemical stability, permeability, and filtration performance was systematically investigated. Four membrane samples were prepared, consisting of MM0 (100% PES, conventional NIPS), MM1 (70% PES + 30% PCL), MM2 (80% PES + 20% PCL), and MM3 (90% PES + 10% PCL), with the latter three fabricated under a 15 kV electric field. SEM and AFM analyses revealed that MM1 exhibited the most homogeneous interconnected finger-like pore structure, the largest pore size, and the smoothest surface morphology. FTIR and XRD analyses confirmed good intermolecular interactions between PES and PCL and improved semi-crystalline structure in MM1. Hydrophilicity tests showed that MM1 achieved the highest porosity (89.27%), water uptake (145.15%), and the lowest tortuosity (1.12). Mechanical testing demonstrated superior tensile strength (21.07 MPa) and structural stability for MM1. In addition, MM1 exhibited the highest clean water permeability of 114.3 L·m⁻²·h⁻¹·bar⁻¹ and the best rejection efficiency for electrical conductivity, total dissolved solids, and turbidity. Overall, the combination of PES/PCL blending and electric field-assisted NIPS effectively enhanced membrane performance for advanced water filtration applications.

How to Cite

Mataram, A., Gantada, M. S. P., Dani, R., Ismail, A. F., Sriyanti, I., Nasution, J. D., … Yuliandi, R. B. (2026). ANALYSIS OF THE CHARACTERISTICS AND PERFORMANCE OF POLYETHERSULFONE/POLYCAPROLACTONE MEMBRANES FABRICATED USING THE ELECTRIC FIELD METHOD FOR WATER FILTRATION APPLICATIONS. ACTA INNOVATIONS, 61, 52–83. https://doi.org/10.62441/actainnovations.vi.728
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