Incorporation of carbon nanofibers into a Matrimid polymer matrix: Effects on the gas permeability and selectivity properties

2017 ◽  
Vol 135 (12) ◽  
pp. 46019 ◽  
Author(s):  
Manisha Dohade
Keyword(s):  
Carbon Nanofibers ◽  
Polymer Matrix ◽  
Matrix Effects ◽  
Gas Permeability

scholarly journals Evaluation of the Properties, Gas Permeability, and Selectivity of Mixed Matrix Membrane Based on Polysulfone Polymer Matrix Incorporated with KIT-6 Silica

Polymers ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 1732 ◽  
Author(s):  
Sie Hao Ding ◽  
Tiffany Yit Siew Ng ◽  
Thiam Leng Chew ◽  
Pei Ching Oh ◽  
Abdul Latif Ahmad ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Polymer Matrix ◽  
Pressure Difference ◽  
Gas Permeability ◽  
Gas Permeation ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix Membrane ◽  
Mixed Matrix ◽  
Carbon Dioxide Co2 ◽  
The Ideal

Mixed matrix membranes (MMMs) separation is a promising technology for gas permeation and separation involving carbon dioxide (CO2). However, finding a suitable type of filler for the formation of defect-free MMMs with enhancement in gas permeability remains a challenge. Current study focuses on synthesis of KIT-6 silica and followed by the incorporation of KIT-6 silica as filler into polysulfone (PSF) polymer matrix to fabricate MMMs, with filler loadings of 0–8 wt %. The effect of KIT-6 incorporation on the properties of the fabricated MMMs was evaluated via different characterization techniques. The MMMs were investigated for gas permeability and selectivity with pressure difference of 5 bar at 25 °C. KIT-6 with typical rock-like morphology was synthesized. Incorporation of 2 wt % of KIT-6 into PSF matrix produced MMMs with no void. When KIT-6 loadings in the MMMs were increased from 0 to 2 wt %, the CO2 permeability increased by ~48%, whereas the ideal CO2/CH4 selectivity remained almost constant. However, when the KIT-6 loading in PSF polymer matrix was more than 2 wt %, the formation of voids in the MMMs increased the CO2 permeability but sacrificed the ideal CO2/CH4 selectivity. In current study, KIT-6 was found to be potential filler for PSF matrix under controlled KIT-6 loading for gas permeation.

Magnetic Field and Polymer Matrix Effects on Photocrosslinking Reaction in Solid Polymer Matrices*

1992 ◽  
Vol 1 (Part_2) ◽  
pp. 209-216
Author(s):  
Hiroshi Morita ◽  
Shigeyasu Mori ◽  
Noriaki Uchino ◽  
Shoichi Yokoyama
Keyword(s):  
Magnetic Field ◽  
Polymer Matrix ◽  
Matrix Effects ◽  
Polymer Matrices ◽  
Solid Polymer

Relationship between Activation Volume and Polymer Matrix Effects on Photochromic Performance: Bridging Molecular Parameter to Macroscale Effect

2015 ◽  
Vol 119 (7) ◽  
pp. 1087-1093 ◽  
Author(s):  
Kentaro Shima ◽  
Katsuya Mutoh ◽  
Yoichi Kobayashi ◽  
Jiro Abe
Keyword(s):  
Polymer Matrix ◽  
Activation Volume ◽  
Matrix Effects ◽  
Molecular Parameter

Decreased Macrophage Density on Carbon Nanofiber Patterns

2006 ◽  
Vol 950 ◽  
Author(s):  
Jong Youl Kim ◽  
Dongwoo Khang ◽  
Jong Eun Lee ◽  
Thomas J. Webster
Keyword(s):  
Carbon Nanofibers ◽  
Polymer Matrix ◽  
Carbon Nanofiber ◽  
In Vitro Study ◽  
Inflammatory Cells ◽  
Vitro Study ◽  
Macrophage Density ◽  
Macrophage Adhesion ◽  
First Time

ABSTRACTIn this study, we describe the selective adhesion 4 hour and proliferation 24 hour and 4 days of inflammatory cells (specifically, macrophages) on aligned carbon nanofiber/nanotube patterns on a polymer matrix. The results showed for the first time that macrophage adhesion and proliferation on aligned Carbon nanofibers (CNFs) was significantly less than on the polymer matrix. The present in vitro study thus provided evidence of the ability of CNFs to down-regulate macrophage adhesion and proliferation important to decrease harmful body reaction, which is imperative for the future consideration of CNFs for numerous implant applications.

Evaluation of the Permeation of O2, Co2 and Water Vapor in Membranes of Polyetherimide/Clay National Nanocomposites

2012 ◽  
Vol 727-728 ◽  
pp. 1570-1573
Author(s):  
Vanessa Nóbrega Medeiros ◽  
Amanda Melissa Damião Leite ◽  
Renê Anísio da Paz ◽  
Edcleide Maria Araujo ◽  
Luiz Antônio Pessan
Keyword(s):  
Water Vapor ◽  
Gas Separation ◽  
Polymer Matrix ◽  
High Selectivity ◽  
Membrane Separation ◽  
Gas Permeability ◽  
Bentonite Clay ◽  
Separation Process ◽  
Nanometric Particles ◽  
Cryogenic Distillation

The membrane separation process, although is recently, is increasing in applications such as purification, fractioning and concentration of substances in several industries. The membranes to gas separation present specific advantages when compared with conventional separation process (such as, cryogenic distillation and adsorption). Composite membrane has been widely applied in gas separation. The interest in the nanotechnology development in the last decade allows the increase in the nanocomposite area due to the special properties presented by these materials. In the nanocomposite the nanometric particles are dispersed in the polymer matrix. The polymer matrix used in this work was a polyetherimide (PEI), which is the most popular polymers for the preparation of membrane due to its solvent resistance and high selectivity. These membranes were obtained from polyetherimide (PEI) with bentonite clay from Paraiba/Brazil, by solvent evaporation method, and applied to gas permeability. The membranes were characterized by permeability to O2, CO2and water vapor. The results present in this study show good expectation.

Polymer matrix effects on acid generation

2008 ◽  
Author(s):  
Theodore H. Fedynyshyn ◽  
Russell B. Goodman ◽  
Jeanette Roberts
Keyword(s):  
Polymer Matrix ◽  
Matrix Effects ◽  
Acid Generation

Investigation of Gas Permeability in Carbon Nanotube (CNT)−Polymer Matrix Membranes via Modifying CNTs with Functional Groups/Metals and Controlling Modification Location

2011 ◽  
Vol 115 (14) ◽  
pp. 6661-6670 ◽  
Author(s):  
Lei Ge ◽  
Zhonghua Zhu ◽  
Feng Li ◽  
Shaomin Liu ◽  
Li Wang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Functional Groups ◽  
Polymer Matrix ◽  
Gas Permeability ◽  
Matrix Membranes
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