Organic and Inorganic PCL-Based Electrospun Fibers
| Autor: | Valentina Salaris, Marina P. Arrieta, Alicia Mujica-Garcia, Laura Peponi, Adrián Leonés, Daniel López, Jose Maria Kenny |
|---|---|
| Přispěvatelé: | Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), European Commission |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Bioquímica
Materiales Nanocomposite Materials science Polymers and Plastics Electrospinning technology industry and agriculture Nanoparticle General Chemistry Article Silver nanoparticle lcsh:QD241-441 Chitosan chemistry.chemical_compound Crystallinity Inorganic nanoparticles lcsh:Organic chemistry chemistry Chemical engineering PCL Organic nanoparticles Glass transition Fumed silica |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname E-Prints Complutense. Archivo Institucional de la UCM Polymers, Vol 12, Iss 1325, p 1325 (2020) Polymers Volume 12 Issue 6 |
| Popis: | © 2020 by the authors. In this work, different nanocomposite electrospun fiber mats were obtained based on poly(e-caprolactone) (PCL) and reinforced with both organic and inorganic nanoparticles. In particular, on one side, cellulose nanocrystals (CNC) were synthesized and functionalized by “grafting from” reaction, using their superficial OH– group to graft PCL chains. On the other side, commercial chitosan, graphene as organic, while silver, hydroxyapatite, and fumed silica nanoparticles were used as inorganic reinforcements. All the nanoparticles were added at 1 wt% with respect to the PCL polymeric matrix in order to compare the different behavior of the woven no-woven nanocomposite electrospun fibers with a fixed amount of both organic and inorganic nanoparticles. From the thermal point of view, no difference was found between the effect of the addition of organic or inorganic nanoparticles, with no significant variation in the Tg (glass transition temperature), Tm (melting temperature), and the degree of crystallinity, leading in all cases to high crystallinity electrospun mats. From the mechanical point of view, the highest values of Young modulus were obtained when graphene, CNC, and silver nanoparticles were added to the PCL electrospun fibers. Moreover, all the nanoparticles used, both organic and inorganic, increased the flexibility of the electrospun mats, increasing their elongation at break. This work was funded by MAT2017-88123-P and PCIN-2017-036 (MINEICO FEDER EU). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|