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Preparation of hydrophilic polypropylene membrane by acid dipping technique
Wardani A.K.a, Ariono D.a, Yespin Y.a, Sihotang D.R.a, Wenten I.G.a
a Department of Chemical Engineering, Institut Teknologi Bandung, Bandung, 40132, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2019 IOP Publishing Ltd.The fouling tendency arising from the hydrophobicity characteristic of polypropylene is a major limitation of polypropylene membranes performance, especially in water and wastewater treatment. Therefore, hydrophilic modifications of polypropylene membrane are important to prevent fouling formation on polypropylene membrane. One of the attractive physical modifications for hydrophilization of polypropylene membrane is acid dipping technique. In this work, polypropylene membrane was dipped in nitric acid and sulfuric acid. Alcohol permeators i.e. methanol, ethanol, and isopropyl alcohol were used as membrane wetting agents thus nitric acid and sulfuric acid could be easily attached to the polypropylene membrane. The polypropylene membrane that was modified by a nitric acid at concentration of 20 wt-% with isopropyl alcohol as permeator and without drying process had the best water flux value of 146.42 7.67 L/m2.h. Isopropyl alcohol could enhance nitric acid and sulfuric acid hydrophilization better than methanol or ethanol, however it resulted in higher water flux reduction. Meanwhile, nitric acid had better acid activation than sulfuric acid to increase pure water flux and render hydrophilic characteristic of polypropylene membranes.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Acid dipping,hydrophilic,Hydrophilic characteristics,Hydrophilic modification,Isopropyl alcohols,Physical modifications,Polypropylene membrane,Water and wastewater treatments[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]acid dipping,hydrophilic,polypropylene membrane[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1088/2053-1591/ab10cf[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]