surface modification of polypropylene membrane

Advances in preparation modification and application of

However PP membrane with high performance is still a challenge Thus this article presents a comprehensive overview of the advances in the preparation modification and application of PP membrane The preparation methods of PP membrane are firstly reviewed followed by the modification approaches of PP membrane The modifications includes

Surface modification of polysulfone membranes applied for

1 Surface modification of polysulfone membranes applied for a membrane reactor with immobilized alcohol dehydrogenase Christian Hoffmanna Harald Silaua Manuel Pinelob John M Woodleyc Anders E Daugaarda* aDanish Polymer Centre Department of Chemical and Biochemical Engineering Technical University of Denmark Sltofts Plads Building 229 Tongwei-2800 Kgs

Surface Modification of Sulfonated Poly(phenylene oxide

Surface Modification of Sulfonated Poly(phenylene oxide) Membrane for Vanadium Redox Flow Batteries Buy Article: $106 38 + tax (Refund Policy) Authors: Roh Sung-Hee 1 Shin Dong-Seok 2 Kang Dae-Kweon 2 Kim Sang-Chai 3 Kang Ung-Il 4 Park Won-Shik 5 Kurkuri Mahaveer 6 Jung Ho-Young 2 Source: Journal of Nanoscience and Nanotechnology Volume 20 Number 9 September

Membrane Surface Modification and Functionalization

10 07 2018Y -H Zhao K -H Wee R Bai Highly hydrophilic and low-protein fouling polypropylene membrane prepared by surface modification with sulfobetaine-based zwitterionic polymer through a combined surface polymerization method J Membr Sci

Membrane Formation and Modification

Membrane Formation and Modification I Pinnau EDITOR Membrane Technology and Research Inc for Membrane Formation 42 Sung Soo Kim Min-Oh Yeom and In-Sok Cho 4 A New Type of Asymmetrie Polyimide Gas Separation Membrane Having Ultrathin Skin Layer 65 Hisao Hachisuka Tomomi Ohara and Kenichi Ikeda 5 Influence of Surface Skin Layer of Asymmetrie Polyimide Membrane

Nanofiltration extends the range of membrane filtration

Nanofiltration is a pressure driven membrane process between reverse osmosis and ultrafiltration The rejection is low for salts with monovalent anion and nonionized organics with molecular weight below 150 while high for salts with di‐ and multivalent anions and organics with molecular weight above 300

SURFACE MODIFICATION OF POLYPROPYLENE MICROPOROUS MEMBRANE

surface modification of polypropylene microporous membrane by tethering polypeptides Mathias Ulbricht 【】: Two kinds of polypeptides were tethered onto the surface of polypropylene microporous membrane (PPMM) through a ring opening polymerization of L-glutamate N-carboxyanhydride initiated by amino groups which were introduced by ammonia plasma andγ

Polyfil WF

They are equally suitable for use as pre-filters or final polishing filters in applications that do not require membrane filtration The use of a spacer mesh as an upstream pleat support means that fluid flow is uniform across the entire surface of the filter medium The mesh holds the flow channels open thereby maximising dirt holding capacity and minimising pressure drop across the filter

Surface Modification of Asymmetric Polysulfone

The effects of ultraviolet (UV) irradiation for surface modification of hydrophobic asymmetric polysulfone membranes have been investigated The asymmetric polysulfone (PSF) membranes were prepared by phase inversion method using 19%-25% of PSF in two solvents viz dimethylacetamide (DMF) and Acetone (Ac) collectively

Surface Modification of Polypropylene Microporous

Surface Modification of Polypropylene Microporous Membrane by the Immobilization of Dextran YANG Qian 1 XU Zhi-Kang 1 Mathias Ulbricht 2 1 Institute of Polymer Science College of Chemical Engineering of Material Zhejiang University Hangzhou 310027 China 2 Institut fr Technische Chemie Universitt Essen 45117 Essen Germany Received:2004-08-31 Online:2005-01-10 Published:2005-01

Application of Surface Modified Polypropylene

In order to increase hydrophilicity and thereby to reduce membrane fouling caused by hydrophobic adsorption the surface of a hydrophobic 0 2 m polypropylene (PP) membrane was modified by ozone treatment followed by graft polymerization with 2-hydroxy-ethyl methacrylate (HEMA) The modified PP (MPP) membranes were characterized in terms of contact angle morphology and degree of grafting

Modification of biomaterials surface by mimetic cell

Modification of biomaterials surface by mimetic cell membrane for improving biocompatibility to imitate the excellent biological and physiological properties of the natural cell membrane is an important research area in materials science Numerous studies have been attempted to construct a mimetic cell membrane biointerface composed of phosphorylcholine (PC)-containing polymers or other

Hydrophilic and antimicrobial properties of acrylic acid

The polypropylene melt-blown nonwoven membrane (PPM) is widely used in healthcare however the highly hydrophobic nature of the PPM readily adsorbs proteins and polysaccharides which are conducive to bacteria being retained in the network resulting in biofouling

Modification and Applications of Hydrophilic

Polypropylene (PP) is one of the most important polymers for microporous membrane due to its high void volume well-controlled porosity high thermal and chemical stability and low cost However the hydrophobicity of PP becomes a limitation to broaden its applications Furthermore membrane fouling occurs more seriously on hydrophobic membranes than hydrophilic ones

Modification of Polypropylene Membrane by Ion Implantation

Modification of Polypropylene Membrane by Ion Implantation and Plasma Treatment Karolina Kotra-Konicka Jakub M Gac Faculty of Chemical and Process Engineering Warsaw University of Technology Waryńskiego 1 00-645 Warsaw Poland k kotrp pw edu pl j gacichip pw edu pl Joanna Kalbarczyk Automotive Industry Institute Wlczyńska 133 Warszawa Poland asia-kalbarczykwp pl

Application of wet chemical surface functionalization

Application of wet chemical surface functionalization method in preparation of anti-fouling polysulfone microporous membrane for water treatment Journal of Water and Environmental Nanotechnology 4 4 2019 308-320 doi: 10 22090/jwent 2019 04 005

urn:nbn:se:mdh:diva

It was suggested that improving the hydrophobicity of polypropylene membrane by surface modification may be an effective way to improve the long-term operating performance of membrane contactors Therefore the polypropylene hollow fibers were modified by depositing a thin superhydrophobic coating on the membrane surface to improve their hydrophobicity The mixture of

Nanofiltration extends the range of membrane filtration

Nanofiltration is a pressure driven membrane process between reverse osmosis and ultrafiltration The rejection is low for salts with monovalent anion and nonionized organics with molecular weight below 150 while high for salts with di‐ and multivalent anions and organics with molecular weight above 300

Induced super hydrophilicity due to surface modification

Here the polypropylene membrane was tested by O 2 plasma to emphasize that the contact angle nonlinearly decreases with the treatment time The XPS surface sensitive technique was applied to confirm the drastic skin change of the oxygen content showing that membrane becomes super hydrophilic due to the significant O 2 implant

Atomic layer deposition of Al2O3 on porous

Atomic layer deposition of Al 2 O 3 on porous polypropylene hollow fibers for enhanced membrane performances Xiaojuan Jia Zexian Low He Chen Sen Xiong Yong Wang Chemical Engineering Research output: Contribution to journal › Article › Research › peer-review 3 Citations (Scopus) Abstract Porous polypropylene hollow fiber (PPHF) membranes are widely used in liquid purification

Solving the Problem of Adhesion to Plastics Rubber

are Polypropylene (PP) Polyethylene (PE) High-Density Polyethylene (HDPE) EPDM all of which have low surface energies of between 29 – 36 Dynes/cm (mN/m) Achieving any level of adhesion to low surface energy materials e g P P P E P T F E is difficult at the best of times and sometimes near impossible basically these materials are

Modification of biomaterials surface by mimetic cell

Modification of biomaterials surface by mimetic cell membrane for improving biocompatibility to imitate the excellent biological and physiological properties of the natural cell membrane is an important research area in materials science Numerous studies have been attempted to construct a mimetic cell membrane biointerface composed of phosphorylcholine (PC)-containing polymers or other

Surface Modification of Polypropylene Microporous Membrane

Surface Modification of Polypropylene Microporous Membrane by the Immobilization of Dextran YANG Qian1 XU Zhi-Kang 1* Mathias Ulbricht2 (1 Institute of Polymer Science College of Chemical Engineering of Material Zhejiang University Hangzhou 310027 China 2

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