Preparation and Characterization of Hydrophobic Flat Sheet Membranes Based on a Recycled Polymer
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H. Ajari
Abstract
In this work, we used a recycled low-density polyethylene (LDPE) in order to prepare flat sheet membranes with different polymer concentrations (5 and 10%). The used chemical method for the membrane's preparation is the phase inversion. After obtaining the membranes, we characterized them by atomic force microscopy (AFM) and scanning electron microscopy (SEM) to study their structure and surface characteristics. Based on the SEM images, our membranes have a dense skin layer. In addition, we observed a decrease in the porosity with the increase in the polymer concentration. When the polymer concentration increases from 5 to 10% the porosity decreases from 35.54% to 20.28%. Furthermore, we remarked significant changes in the contact angle and the surface roughness with the increase of the polymer concentration. The roughness increases from 363 to 577 nm for the same evolution of the polymer concentration. These high values of roughness imply obtaining values of contact angles greater than 90° and hydrophobic membranes, which is beneficial for the membrane distillation. Furthermore, the use of our membranes in vacuum membrane distillation (VMD) experiments showed a permeate flux up to 1.503 kg/hm2; for the membrane with 35.54% of porosity and 5% of polymer concentration.
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Artikel in diesem Heft
- Contents
- Contents
- Regular Contributed Articles
- Synthesis of a Novel Ladder Poly(azomethine-ester) Based on PET Waste Bottles
- Identifying Melt Processing Conditions for a Polyacrylonitrile Copolymer Plasticized with Water, Acetonitrile and their Mixtures
- Optimization of Injection Stretch Blow Molding: Part I – Defining Part Thickness Profile
- Damping, Thermal and Mechanical Analyses of Polycarbonate/Cerium Oxide Composites for Structural Applications
- On Induced Properties and Self Heating during Free Blowing of PET Preform
- Study of Rheology and Plug Assist Thermoforming of Linear and Branched PP Homopolymer and Impact Copolymer
- Micro-Residual Stress Measurement in Nanocomposite Reinforced Polymers
- Influence of Process Parameters on the Morphologies of Micro-Injection Molded Polyformaldehyde Parts
- Preparation and Characterization of Hydrophobic Flat Sheet Membranes Based on a Recycled Polymer
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
Artikel in diesem Heft
- Contents
- Contents
- Regular Contributed Articles
- Synthesis of a Novel Ladder Poly(azomethine-ester) Based on PET Waste Bottles
- Identifying Melt Processing Conditions for a Polyacrylonitrile Copolymer Plasticized with Water, Acetonitrile and their Mixtures
- Optimization of Injection Stretch Blow Molding: Part I – Defining Part Thickness Profile
- Damping, Thermal and Mechanical Analyses of Polycarbonate/Cerium Oxide Composites for Structural Applications
- On Induced Properties and Self Heating during Free Blowing of PET Preform
- Study of Rheology and Plug Assist Thermoforming of Linear and Branched PP Homopolymer and Impact Copolymer
- Micro-Residual Stress Measurement in Nanocomposite Reinforced Polymers
- Influence of Process Parameters on the Morphologies of Micro-Injection Molded Polyformaldehyde Parts
- Preparation and Characterization of Hydrophobic Flat Sheet Membranes Based on a Recycled Polymer
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
