The Mechanical Properties of PVC Nanofiber Mats Obtained by Electrospinning
| Autor: | Mayya Uspenskaya, Quoc Pham Le, Mikhail A. Baranov, Roman Olekhnovich |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Thermogravimetric analysis
nonwoven mats Materials science Scanning electron microscope 02 engineering and technology mechanical properties 010402 general chemistry 01 natural sciences Biomaterials chemistry.chemical_compound Differential scanning calorimetry lcsh:TP890-933 lcsh:TP200-248 Ultimate tensile strength Composite material nanofiber lcsh:QH301-705.5 electrospinning Civil and Structural Engineering lcsh:Chemicals: Manufacture use etc 021001 nanoscience & nanotechnology Electrospinning lcsh:QC1-999 0104 chemical sciences PVC Polyvinyl chloride the orientation of nanofibers chemistry lcsh:Biology (General) Mechanics of Materials Nanofiber Ceramics and Composites lcsh:Textile bleaching dyeing printing etc 0210 nano-technology Glass transition lcsh:Physics |
| Zdroj: | Fibers, Vol 9, Iss 2, p 2 (2021) Fibers Volume 9 Issue 1 |
| ISSN: | 2079-6439 |
| Popis: | This paper investigates the mechanical properties of oriented polyvinyl chloride (PVC) nanofiber mats, which, were obtained by electrospinning a PVC solution. PVC was dissolved in a solvent mixture of tetrahydrofuran/dimethylformamide. Electrospinning parameters used in our work were, voltage 20 kV flow rate 0.5 mL/h the distance between the syringe tip and collector was 15 cm. The rotating speed of the drum collector was varied from 500 to 2500 rpm with a range of 500 rpm. Nanofiber mats were characterized by scanning electron microscope, thermogravimetric analysis, differential scanning calorimetry methods. The mechanical properties of PVC nanofiber mats, such as tensile strength, Young&rsquo s modulus, thermal degradation, and glass transition temperature were also analyzed. It was shown that, by increasing the collector&rsquo s rotation speed from 0 (flat plate collector) to 2500 rpm (drum collector), the average diameter of PVC nanofibers decreased from 313 ± 52 to 229 ± 47 nm. At the same time, it was observed that the mechanical properties of the resulting nanofiber mats were improved: tensile strength increased from 2.2 ± 0.2 MPa to 9.1 ± 0.3 MPa, Young&rsquo s modulus from 53 ± 14 to 308 ± 19 MPa. Thermogravimetric analysis measurements showed that there was no difference in the process of thermal degradation of nanofiber mats and PVC powders. On the other hand, the glass transition temperature of nanofiber mats and powders did show different values, such values were 77.5 ° C and 83.2 ° C, respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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