A newly reaction curing mechanism in conjugate electrospinning process
| Autor: | Liu Guosai, Zhi-Hu Wang, Yun-Ze Long, Xu Yan, Hong-Wei He, Xin Ning |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Mechanical Engineering Radical Composite number 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Electrospinning 0104 chemical sciences Solvent chemistry.chemical_compound Monomer chemistry Polymerization Chemical engineering Mechanics of Materials General Materials Science 0210 nano-technology Curing (chemistry) Conjugate |
| Zdroj: | Materials Letters. 254:5-8 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2019.07.010 |
| Popis: | In conventional electrospinning (e-spinning) process, the curing mechanism can be attributed to the volatilization of solvent or the melt cooling of the jets, which were merely physical processes. To develop novel e-spinning curing mechanism, we propose a conjugate e-spinning one, in which the e-spinning precursors, solution A containing some active monomers, oxidant and solution B containing reductant, are loaded into two different syringes connected with opposite high voltage supplier, respectively. The opposite charged jets attract each other and then meet when flying from spinneret tip to collector. The redox reaction occurs when two jets meet and radicals are produced in situ which can initiate polymerization of active monomers. Then the conjugate jets solidify into fibers under reaction curing mechanism. The new method may give a new approach to produce composite functional fibers. |
| Databáze: | OpenAIRE |
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