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(3-aminopropyl) triethoxysilane grafted poly(dopamine)@Fe3O4 nanoparticles and their epoxy composites for functional application.
- Source :
-
Composites: Part B, Engineering . Jul2019, Vol. 169, p148-156. 9p. - Publication Year :
- 2019
-
Abstract
- The uniform dispersion of Fe 3 O 4 nanoparticles and strong interfacial bonding with epoxy matrix are crucial for Fe 3 O 4 /epoxy composite with enhanced mechanical and thermal properties. Cube pure Fe 3 O 4 nanoparticles (PF NPs) by poly (dopamine) (PDA) coated and (3-aminopropyl) triethoxysilane (APTES) grafted (PAF NPs) are successfully prepared via co-precipitation and seed polymerization method with an aim to enhance the dispersion and interfacial bonding with the epoxy matrix. The tensile strength of PAF/epoxy (1 wt%) increases from 57.8 MPa to 65.5 MPa (a rise scope of almost 13.3%) compared to pure epoxy. The thermal stabilities of PAF/epoxy composites with various PAF contents (1 wt%, 2 wt%, 3 wt%) are higher than that of pure epoxy. The saturation magnetization (Ms) of PAF/epoxy increases from 0.125 to 0.7 emu/g with PAF loading contents increasing from 0.5 to 3 wt%. The results suggest that dispersion and interfacial bonding of nanoparticles make a pivotal contribution to the enhanced performances of composites. Image 1 • APTES grafted poly (dopamine)@Fe 3 O 4 nanoparticles and their epoxy composites were fabricated. • Improved the dispersion of PAF and interfacial bonding with the epoxy matrix were achieved. • Enhanced mechanical and thermal properties of PAF/epoxy composites were realized. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13598368
- Volume :
- 169
- Database :
- Academic Search Index
- Journal :
- Composites: Part B, Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 139238565
- Full Text :
- https://doi.org/10.1016/j.compositesb.2019.04.012