Preparation and characterization of the improved-hydrophilic polyvinylidene fluoride (PVDF) membrane modified by polymer blending technique.

Autor: Muhfadzallah, Muhfadzallah, Aprilia, Sri, Muchtar, Syawaliah, Yusuf, Mukramah, Fathanah, Umi
Předmět:
Zdroj: AIP Conference Proceedings; 2024, Vol. 3073 Issue 1, p1-11, 11p
Abstrakt: Increasing the membrane's hydrophilicity is one of the most straightforward ways to boost its efficacy. The objective of this scholarly article is to discuss the production of membranes based on polyvinylidene fluoride (PVDF) by incorporating organic additives such as chitosan and polyvinylpyrrolidone (PVP). The primary aim is to enhance the hydrophilicity of the membranes. The membrane modification was carried out by adding 1% (w/w) of PVP and 1% (w/w) of chitosan into the PVDF polymer with dimethyl acetamide (DMAc) as the solvent. The impact of additives on the membranes that were produced was assessed through an analysis of alterations in chemical functional groups using ATR-FTIR, as well as changes in the morphological structure using SEM, gravimetric membrane porosity and filtration performance tests. The findings of the SEM imaging demonstrate that the presence of additives caused alterations to occur in the morphological structure of the membrane. The effectiveness of the membrane is also significantly impacted by the modifications, as can be seen by the increased permeability of clean water and the decreased uptake of humic acid in solution as a result of these changes. Because of its superior hydrophilicity, the modified PVDF membrane with 1% by weight of PVP and 1% by weight of chitosan resulted in substantially better permeability than the PVDF membrane that did not contain any additives. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index