Abstract
Polyethylene terephthalate (PET) is a semi crystalline polymer, that is used in a variety of applications due to its resistant...
Highlights
Polyethylene terephthalate (PET) is a semi crystalline polymer, that is used in a variety of applications due to its resistant to environmental effects and good mechanical properties[1,2]
The aim of this work was to minimize the use of trifluoroacetic acid (TFA) when preparing PET fibers via the electrospinning method
In order to do this several solvent ratios were prepared that are presented in (Table 2).The results show that PET can be dissolved when using only 3 wt% TFA, preliminary electrospinning experiments indicated that at DCM:TFA 97:3 solvent ratio the fiber formation process did not start, PET fibers could not be obtained
Summary
Polyethylene terephthalate (PET) is a semi crystalline polymer, that is used in a variety of applications due to its resistant to environmental effects and good mechanical properties[1,2]. Electrospinning has become a readily used process to generate polymer fibers with average diameters in the nanometer range[8]. Polymer fiber mats generated by electrospinning offer a high surface-to-volume ratio and high porosity[7]. The solution electrospinning process has been discussed in detail in the literature. A polymer solution is placed into a container, typically a syringe, that is connected to a needle. The needle is connected to the positive potential outlet of a high voltage DC power supply and the collector is grounded and placed at a desired distance from the needle. The so-called Taylor cone forms at the end of the needle and the solution becomes positively charged[9]
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