Carrier Fibers for the Safe Dosage of Nanoparticles in Nanocomposites: Nanomechanical and Thermomechanical Study on Polycarbonate/Boehmite Electrospun Fibers Embedded in Epoxy Resin

Clicks: 137
ID: 269235
2021
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Emerging

Ranked #316 of 331 articles by views in Nanomaterials

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 331 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
The reinforcing effect of boehmite nanoparticles (BNP) in epoxy resins for fiber composite lightweight construction is related to the formation of a soft but bound interphase between filler and polymer. The interphase is able to dissipate crack propagation energy and consequently increases the fracture toughness of the epoxy resin. Usually, the nanoparticles are dispersed in the resin and then mixed with the hardener to form an applicable mixture to impregnate the fibers. If one wishes to locally increase the fracture toughness at particularly stressed positions of the fiber-reinforced polymer composites (FRPC), this could be done by spraying nanoparticles from a suspension. However, this would entail high costs for removing the nanoparticles from the ambient air. We propose that a fiber fleece containing bound nanoparticles be inserted at exposed locations. For the present proof-of-concept study, an electrospun polycarbonate nonwoven and taurine modified BNP are proposed. After fabrication of suitable PC/EP/BNP composites, the thermomechanical properties were tested by dynamic mechanical analysis (DMA). Comparatively, the local nanomechanical properties such as stiffness and elastic modulus were determined by atomic force microscopy (AFM). An additional investigation of the distribution of the nanoparticles in the epoxy matrix, which is a prerequisite for an effective nanocomposite, is carried out by scanning electron microscopy in transmission mode (TSEM). From the results it can be concluded that the concept of carrier fibers for nanoparticles is viable.
Reference Key
murillo2021nanomaterialscarrier Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Natalia Cano Murillo;Media Ghasem Zadeh Khorasani;Dorothee Silbernagl;Farnaz Emamverdi;Karen Cacua;Vasile-Dan Hodoroaba;Heinz Sturm;Cano Murillo, Natalia;Ghasem Zadeh Khorasani, Media;Silbernagl, Dorothee;Emamverdi, Farnaz;Cacua, Karen;Hodoroaba, Vasile-Dan;Sturm, Heinz;
Journal Nanomaterials
Year 2021
DOI
10.3390/nano11061591
URL
https://doi.org/10.3390/nano11061591
Keywords
electrospun nanocomposite fiber nanomechanical characterization epoxy nanocomposites

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.