Polymer blending or fiber blending: A comparative study using chitosan and poly(ε-caprolactone) electrospun fibers

Tiago Valente; José Luís Ferreira; Célia Henriques; João Paulo Borges; Jorge Carvalho Silva

doi:10.1002/app.47191

Polyethylene and Polyvinyl Chloride-Blended Polystyrene Nanofibrous Sorbents and Their Application in the Removal of Various Oil Spills

Advances in Polymer Technology ◽

10.1155/2020/4097520 ◽

2020 ◽

Vol 2020 ◽

pp. 1-12

Author(s):

Mohamed. A. Alnaqbi ◽

Afra G. Al Blooshi ◽

Yaser E. Greish

Keyword(s):

Crude Oil ◽

Oil Spills ◽

Aqueous Media ◽

Electrospun Fibers ◽

Motor Oil ◽

Polymer Blending ◽

Hydrophobic Polymers ◽

Poly Vinyl Chloride ◽

Wide Range ◽

The Matrix

Polymers provide a wide range of properties, and these properties can be greatly enhanced and modified through polymer blending. Polymer blending combines the properties and advantages of their original polymers. This paper showcases hydrophobic polymers prepared through polymer blending; these blends are characterized and evaluated for their efficiency in the removal of crude oil spills from aqueous media. The application of these blends holds a great deal of importance in preserving the environment and the recovery of lost oil in spills. The blends are produced using polystyrene (PS) as the matrix polymer and individually blending poly(vinyl chloride) (PVC) and polyethylene (PE) with the PS consisting of proportions of 5–20 wt.% each. The blends are then electrospun into bead-free microfibers with interconnected porosities as shown by their respective scanned electron micrographs. All fibrous sorbents showed a high affinity towards the removal of crude oil, motor oil, and diesel spills. The highly viscous motor spill showed a different pattern of sorption onto fibers than that of crude oil and diesel spills. Upon comparing all the studied electrospun fibers to commercially available polypropylene fibrous sorbents, results show that the sorption efficiency of the electrospun fibers is superior. Most notably, both PS-PE5 and PS-PVC5 fibers showed to be highly more effective than commercially available polypropylene (PP) sorbents towards all types of oil spills.

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Antibacterial PLA/PEG electrospun fibers: Comparative study between grafting and blending PEG

European Polymer Journal ◽

10.1016/j.eurpolymj.2015.12.019 ◽

2016 ◽

Vol 75 ◽

pp. 223-233 ◽

Cited By ~ 32

Author(s):

A. Toncheva ◽

R. Mincheva ◽

M. Kancheva ◽

N. Manolova ◽

I. Rashkov ◽

...

Keyword(s):

Comparative Study ◽

Electrospun Fibers

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Fabrication and Characterization of Polycaprolactone (PCL)/Gelatin Electrospun Fibers

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.554.52 ◽

2014 ◽

Vol 554 ◽

pp. 52-56 ◽

Cited By ~ 3

Author(s):

Mim Mim Lim ◽

Naznin Sultana ◽

Azli Bin Yahya

Keyword(s):

Fiber Diameter ◽

Electrospun Fiber ◽

Weight Ratio ◽

Processing Parameters ◽

Electrospun Fibers ◽

Average Fiber Diameter ◽

Polymer Blending ◽

Electrospinning Technique ◽

Sem Image

Over the past few decades, there has been considerable interest in developing electrospun fibers by using electrospinning technique for various applications. Polymer blending is one of the most effective methods in providing desired properties. In this study, synthetic polymer polycaprolactone (PCL) was blended together with natural polymer gelatin where both of them have different properties. It is done by using electrospinning technique. 10 %w/v and 14 %w/v PCL/gelatin electrospun fibers were successfully electrospun with different weight ratio. Processing parameters were set constant in this study and only solution parameters were altered. The optimized electrospun fiber formed was 14 %w/v PCL/gelatin 70:30 with average fiber diameter of 246.30 nm. No beaded fiber was formed in this scanning electron microscope (SEM) image. The result obtained also showed that by increasing the overall polymeric concentration of PCL/gelatin, average fiber diameter decreases. Fiber diameter was also found decreasing with the increase of the concentration of gelatin in the same concentratoin of PCL/gelatin blended electrospun fiber. Blending of PCL and gelatin in different weight ratio had provided different properties of electrospun fibers. It is believed that blended electrospun fibers can be used for biomedical applications.

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Controlled delivery of dexamethasone and betamethasone from PLA electrospun fibers: A comparative study

European Polymer Journal ◽

10.1016/j.eurpolymj.2019.05.001 ◽

2019 ◽

Vol 117 ◽

pp. 1-9 ◽

Cited By ~ 7

Author(s):

Priscila E. Alves ◽

Bluma G. Soares ◽

Luanda C. Lins ◽

Sebastien Livi ◽

Elizabete P. Santos

Keyword(s):

Comparative Study ◽

Controlled Delivery ◽

Electrospun Fibers

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Preparation and Characterization of Coaxial Electrospun Fibers Containing Triclosan for Comparative Study of Release Properties with Amoxicillin and Epicatechin

Current Drug Delivery ◽

10.2174/1567201813666151204121752 ◽

2016 ◽

Vol 13 (1) ◽

pp. 49-56 ◽

Cited By ~ 2

Author(s):

D.E. Rodríguez-Félix ◽

M.M. Castillo-Ortega ◽

A.L Nájera-Luna ◽

A.G. Montaño-Figueroa ◽

I.Y. López-Peña ◽

...

Keyword(s):

Comparative Study ◽

Electrospun Fibers

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A Comparative Study of Multifunctional Coatings Based on Electrospun Fibers with Incorporated ZnO Nanoparticles

Coatings ◽

10.3390/coatings9060367 ◽

2019 ◽

Vol 9 (6) ◽

pp. 367 ◽

Cited By ~ 8

Author(s):

Pedro J. Rivero ◽

Alvaro Iribarren ◽

Silvia Larumbe ◽

José F. Palacio ◽

Rafael Rodríguez

Keyword(s):

Corrosion Resistance ◽

Comparative Study ◽

Zno Nanoparticles ◽

Corrosion Current ◽

Deposition Process ◽

Electrospun Fibers ◽

Scanning Calorimetry ◽

Average Roughness ◽

Electrospinning Technique ◽

Step Over

In this work, polymeric fibers of polystyrene (PS) with incorporated ZnO nanoparticles have been deposited onto an aluminum alloy substrate (6061T6) by using the electrospinning technique. In order to optimize the deposition process, the applied voltage and flow rate have been evaluated in order to obtain micrometric electrospun fibers with a high average roughness and superhydrophobic behavior. Thermogravimetric analysis (TGA) has also been employed in order to corroborate the amount of ZnO incorporated into the electrospun fibers, whereas differential scanning calorimetry (DSC) has been performed in order to determine the glass transition temperature (Tg) of the polymeric electrospun fibers. In addition, a specific thermal treatment (Tg + 20 °C) of the synthesized electrospun fibers has been evaluated in the resultant corrosion resistance. A comparative study with previously reported results corresponding to polyvinyl chloride (PVC) fibers is carried out along this paper to show the changes in behavior due to the different compositions and fiber diameters. The coating has produced an important reduction of the corrosion current of the aluminum substrate in two orders of magnitude, showing also an important enhancement against pitting corrosion resistance. Finally, this deposition technique can be used as an innovative way for the design of both superhydrophobic and anticorrosive surfaces in one unique step over metallic substrates with arbitrary geometry.

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