Title:Effect of Polyvinylpyrrolidone on Polyvinylidene Fluoride/Hydroxyapatite-
Blended Nanofiltration Membranes: Characterization and Filtration
Properties
Volume: 17
Issue: 1
Author(s): Gunawan Setia Prihandana*, Tutik Sriani and Muslim Mahardika
Affiliation:
- Department of Industrial Engineering, Faculty of Advanced Technology and Multidiscipline, Universitas Airlangga, Jl.
Dr. Ir. H. Soekarno, Surabaya 60115, Indonesia
Keywords:
Polyvinylidene fluoride, polyvinylpyrrolidone, hydroxyapatite, nanofiltration, good health, polymers.
Abstract:
Introduction: The application of polyvinylidene fluoride (PVDF) as a filtration membrane
is limited due to its hydrophobicity. This paper elaborated on the fabrication process of nanofiltration
PVDF membrane incorporating various quantities of hydrophilic polyvinylpyrrolidone (PVP) and hydroxyapatite
(HA) using a wet phase inversion method to improve its hydrophilicity.
Methods: The membrane was fabricated by using the wet phase inversion method. It was then characterized
in terms of water permeability, water contact angle, water content, surface energy, and surface
porosity. Bacteria and Fe ions filtration was conducted to investigate the membrane filtration performance.
Results: The PVDF/PVP/HA-blended membrane showed the highest water permeability (6,165
LMH/Bar), water content (45.2 %), and surface energy (104.1 mN/m) when 2 wt.% of PVP was introduced
into the base polymer PVDF. This fabricated membrane, labeled as PVP 2.0, also showed the
lowest contact angle (64°) and the highest surface porosity (42%).
Conclusion: Overall, the PVP introduction patents into the polymeric membrane doping solution
potentially improves membrane hydrophilicity and permeability.