Performance Enhancement of Polymeric Blend Membranes Incorporation of Methyl Diethanol amine for CO2/CH4 Separation

For efficient gas separation the membrane technology is rapidly growing day by day and it is more economical and effectual than past technologies. The main objective of this study is to synthesis polymer blend membranes (PBM) using glassy polysulfone (PSU) and rubbery polyvinyl acetate (PVAc) with the addition of methyl diethanol amine for removal of CO2 from CH4. The PBM were developed by varying the composition of PVAc ranging from 5 to 20 wt% with 80 to 100 wt% PSU in DMAc solvent. The amine composition was added to the blend and kept at 10 wt%. The present of MDEA in the PBM had increased the CO2 permeance as compare with the based polymer membranes. However as the operating pressure increased from 2 to 10 bar, the PBM (PSU95%/PVAc5%) with MDEA was found to increase significantly the permeance of CO2, hence increasing the separation factor from 9.980.02 to 30.190.49. EPBM was found a very promising to be used for CO2/CH4 separation.

Download Full-text

Polyethersulfone/polyvinyl acetate blend membrane incorporated with TiO2 nanoparticles for CO2/CH4 gas separation

Malaysian Journal of Fundamental and Applied Sciences ◽

10.11113/mjfas.v13n4.923 ◽

2017 ◽

Vol 13 (4) ◽

pp. 774-777

Author(s):

Mohd Afzan Abdullah ◽

Hilmi Mukhtar ◽

Hafiz Abdul Mannan ◽

Yeong Yin Fong ◽

Maizatul Shima Shaharun

Keyword(s):

Tio2 Nanoparticles ◽

Gas Separation ◽

Polymer Blend ◽

Polyvinyl Acetate ◽

Morphological Structure ◽

Porous Membrane ◽

Inorganic Filler ◽

Separation Processes ◽

Blend Membrane ◽

Blend Membranes

Development of polymer blend membranes is gaining much attention especially for gas separation processes. This paper is primarily focused on synthesizing polymer blend membranes incorporated with titanium dioxide (TiO2) nanoparticles as inorganic filler to enhance its performances. Polyethersulfone (PES) and polyvinyl acetate (PVAc) were blended at ratio of 90/10, together with 5 wt.% of TiO2 in dimethylformamide (DMF). The morphological structure of the membrane was analysed via FESEM. It shows that a rigid/non-porous membrane with slight nanoparticles agglomeration was formed. As interpreted from TGA, incorporating TiO2 nanoparticles into the polymer blend reduces the degradation temperature, increases wt.% of leftover residual thus proves an enhancement in thermal stability of the membrane. Moreover, the presence of TiO2 nanoparticles in the developed membrane possesses some effect on the spectral analysis as observed via FTIR spectroscopy. The permeability of CO2 gas is improved with addition of TiO2 nanoparticles within the blend membrane and better selectivity of CO2/CH4 is observed.

Download Full-text

Fabrication and characterization of polyetherimide/polyvinyl acetate polymer blend membranes for CO2/CH4separation

Polymer Engineering & Science ◽

10.1002/pen.24945 ◽

2018 ◽

Vol 59 (S1) ◽

pp. E293-E301 ◽

Cited By ~ 7

Author(s):

Hafiz Abdul Mannan ◽

Tan Ming Yih ◽

Rizwan Nasir ◽

Hilmi Muhktar ◽

Dzeti Farhah Mohshim

Keyword(s):

Polymer Blend ◽

Polyvinyl Acetate ◽

Blend Membranes ◽

Fabrication And Characterization

Download Full-text

Effect of Mechanical Properties in Enhanced Polymeric Blend Membranes

Pakistan Journal of Scientific & Industrial Research Series A: Physical Sciences ◽

10.52763/pjsir.phys.sci.64.2.2021.97.102 ◽

2021 ◽

Vol 64 (2) ◽

pp. 97-102

Author(s):

Asim Mushtaq ◽

Hilmi Bin Mukhtar ◽

Azmi Mohd Shariff

Keyword(s):

Mechanical Properties ◽

Polymeric Material ◽

Polyvinyl Acetate ◽

Glassy Polymer ◽

Mechanical Analysis ◽

Elongation At Break ◽

Dimethyl Acetamide ◽

Analysis Technique ◽

Blend Membranes ◽

Polymeric Blend

This study was carried out to evaluate the effect of blending the rubbery and glassy polymer with an alkanolamine on the mechanical properties. Due to the intrinsic properties of glassy polysulfone (PSU) and rubbery polyvinyl acetate (PVAc), optimizing their properties by blending both polymers is expected to address the shortage. The enhanced polymeric blend membrane (EPBM) was developed by varying the composition of PVAc ranging from 5 to 20 wt. % with 95 to 80 wt. % base PSU in dimethyl- acetamide (DMAc) solvent. The DEA amine composition was added to the blend and kept at 10 wt. % over solvent. The tensile analysis technique is utilized to evaluate the mechanical behaviour of a polymeric material which comprises the deformation of the polymeric material underneath the effect of an applied force prior to failure. The mechanical analysis showed improvement in tensile strength, Young's modulus and elongation at break properties with the increase in PVAc/DEA composition in the enhanced polymeric blend membranes. The elongation at break property increased with an increase in the amine contents which indicated the flexibility of the EPBM. In addition, the mechanical analysis revealed remarkable enhancement in the mechanical properties of the EPBM which might be attributed to the robust interactions among the PSU blend with PVAc and DEA.

Download Full-text

Recent advances in polymer blend membranes for gas separation and pervaporation

Progress in Materials Science ◽

10.1016/j.pmatsci.2020.100713 ◽

2021 ◽

Vol 116 ◽

pp. 100713 ◽

Cited By ~ 6

Author(s):

Wai Fen Yong ◽

Hao Zhang

Keyword(s):

Gas Separation ◽

Polymer Blend ◽

Recent Advances ◽

Blend Membranes

Download Full-text

Studies on syntheses and permeabilities of special polymer membranes: 30. Ultrafiltration and dialysis characteristics of cellulose nitrate-poly(vinyl pyrrolidone) polymer blend membranes

Polymer ◽

10.1016/0032-3861(81)90024-0 ◽

1981 ◽

Vol 22 (6) ◽

pp. 829-835 ◽

Cited By ~ 38

Author(s):

Masahiro Tamura ◽

Tadashi Uragami ◽

Mizuho Sugihara

Keyword(s):

Polymer Blend ◽

Polymer Membranes ◽

Cellulose Nitrate ◽

Vinyl Pyrrolidone ◽

Blend Membranes ◽

Poly Vinyl Pyrrolidone

Download Full-text

Effect of TiO2 Incorporation on Separation Performance of Pure PES and PES/PVAc Blend Membranes

Materials Science Forum ◽

10.4028/www.scientific.net/msf.923.35 ◽

2018 ◽

Vol 923 ◽

pp. 35-39 ◽

Cited By ~ 1

Author(s):

Mohd Afzan Abdullah ◽

Hilmi Mukhtar ◽

Yeong Yin Fong ◽

Maizatul Shima Shaharun ◽

Hafiz Abdul Mannan

Keyword(s):

Thermal Stability ◽

Polymer Blend ◽

Polyvinyl Acetate ◽

Research Work ◽

The Other ◽

Mixed Matrix Membranes ◽

Separation Performance ◽

Mixed Matrix ◽

Blend Membranes ◽

Thermal Stability Of

In this research work, polyethersulfone (PES) and polyethersulfone/polyvinyl acetate (PES/PVAc) blend were incorporated with 10 wt.% of TiO2 nanoparticles to form mixed matrix membranes (MMM). FESEM and TGA were utilized respectively to scrutinize the morphology and thermal stability of the developed membranes. Permeation tests of ideal CO2 and CH4 gases were also conducted to assess the separation performance of resultant membranes. The PES/PVAc/TiO2 polymer blend MMM was found to be the most thermally resistant and has the highest CO2 permeability and CO2/CH4 selectivity as compared to the other membranes.

Download Full-text

Recent Development of Enhanced Polymeric Blend Membranes in Gas Separation: A Review

Journal of the chemical society of pakistan ◽

10.52568/000635 ◽

2020 ◽

Vol 42 (2) ◽

pp. 282-282

Author(s):

Asim Mushtaq Asim Mushtaq ◽

Hilmi Mukhtar and Azmi Mohd Shariff Hilmi Mukhtar and Azmi Mohd Shariff

Keyword(s):

Natural Gas ◽

Gas Separation ◽

Calorific Value ◽

Membrane Properties ◽

Mixed Matrix Membranes ◽

Mixed Matrix Membrane ◽

Inorganic Membranes ◽

Mixed Matrix ◽

Blend Membranes ◽

Polymeric Blend

Natural gas is the most rapid growing energy sources around the world. The presence of CO2 in natural gas lowers its calorific value and purification of a natural gas by removing CO2 is an essential process to increase its value. Several separation technologies are used to remove acidic gases like H2S and CO2 from natural gas. Among these technologies, membrane process is a feasible energy saving alternate to CO2 capture. The three types of membrane include polymeric, inorganic and mixed matrix membranes. Currently, polymer membranes and inorganic membranes were considered for gas separation, but inorganic membranes are too costly. Even mixed matrix membrane performance suffered defects caused by poor glassy polymer and particle interactions. Pure glassy and pure rubbery are problematic due to their instructive properties. The blending of glassy with rubbery polymers improve membrane properties for gas separation. To enhance the compatibility of the polymer blend, a third component is added such as alkanol amines. Although, the enhanced polymeric blend membranes have many advantages in terms of permeance, selectivity, thermal and chemical stability. Polymer blending also offers an effective technique to synthesize membranes with desirable properties.

Download Full-text

The spirobichroman-based polyimides with different side groups: from structure–property relationships to chain packing and gas transport performance

RSC Advances ◽

10.1039/d0ra10113c ◽

2021 ◽

Vol 11 (9) ◽

pp. 5086-5095

Author(s):

Shuli Wang ◽

Xiaohua Tong ◽

Chunbo Wang ◽

Xiaocui Han ◽

Sizhuo Jin ◽

...

Keyword(s):

Dihedral Angle ◽

Gas Separation ◽

Gas Transport ◽

Critical Role ◽

Polymer Membranes ◽

Separation Performance ◽

Structure Property ◽

Chain Packing ◽

Structure Property Relationships ◽

Gas Separation Performance

Effect of substituents on the dihedral angle and chain packing plays a critical role in the enhancement in the gas separation performance of polymer membranes.

Download Full-text