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Tailoring an Effective Interface between Nanocellulose and the Epoxidized Linseed Oil Network through
Mădălina I Necolau1, Brînduşa Bălănucă1,2, Adriana N Frone3
1Advanced Polymer Materials Group, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania.
ACS Omega
|May 14, 2023
Summary
Researchers developed sustainable nanocomposites using functionalized nanocellulose (NC) from plum seeds in epoxidized linseed oil (ELO) for greener anticorrosive coatings. These bio-based materials significantly enhance thermomechanical properties and water resistance.
Area of Science:
- Materials Science
- Polymer Chemistry
- Surface Chemistry
Background:
- Growing demand for sustainable and eco-friendly materials in coatings.
- Limitations of conventional anticorrosive coatings and the need for renewable alternatives.
- Potential of nanocellulose (NC) as a reinforcing agent in bio-based polymer matrices.
Purpose of the Study:
- To develop sustainable nanocomposite materials for anticorrosive coatings using functionalized nanocellulose (NC) from plum seed shells.
- To investigate the effect of NC functionalization (APTS, GPTS, vanillin) on the properties of epoxidized linseed oil (ELO) based epoxy nanocomposites.
- To evaluate the potential of these bio-based nanocomposites as high-performance, environmentally friendly coating solutions.
Main Methods:
- Isolation and functionalization of nanocellulose (NC) from plum seed shells using APTS, GPTS, and vanillin.
- Embedding functionalized NC into an epoxidized linseed oil (ELO) matrix to create bio-based epoxy nanocomposites.
- Surface modification analysis using X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FTIR) spectroscopy.
- Characterization of nanocomposite properties including surface energy, dispersion (SEM), storage modulus, and compressive strength.
Main Results:
- Successful surface modification of NC confirmed by XPS and FTIR, indicated by C-O-Si and C-N peaks and reduced C/O ratio.
- Improved compatibility and dispersion of functionalized NC within the ELO matrix, evidenced by decreased surface energy and SEM imaging.
- Significant enhancement in mechanical properties: a 20% increase in storage modulus with 1% APTS-NC and a 116% increase in compressive strength with 5% NC.
Conclusions:
- Functionalized nanocellulose derived from plum seed shells effectively reinforces epoxidized linseed oil bio-based epoxy nanocomposites.
- The developed nanocomposites offer enhanced thermomechanical properties and water resistance, presenting a greener alternative for anticorrosive coatings.
- This research highlights a sustainable approach to developing high-performance materials from renewable resources.
