TECHNOLOGICAL WATCH SERVICE
Technical Article
Powered by:

(3-aminopropyl) triethoxysilane grafted poly(dopamine)@Fe3O4 nanoparticles and their epoxy composites for functional application

The uniform dispersion of Fe3O4 nanoparticles and strong interfacial bonding with epoxy matrix are crucial for Fe3O4/epoxy composite with enhanced mechanical and thermal properties. Cube pure Fe3O4 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.

» Author: Yang Zhang, Zhenqian Zhang, Jingyu Li, Guoxin Sui

» Reference: 10.1016/j.compositesb.2019.04.012

» Publication Date: 13/04/2019

» More Information

« Go to Technological Watch



AIMPLAS - Instituto Tecnológico del Plástico | C/ Gustave Eiffel, 4 (Valčncia Parc Tecnolňgic) | 46980 - PATERNA (Valencia) - SPAIN
(+34) 96 136 60 40
ecogelcronos@aimplas.es

This project has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement n° [609203].

The sole responsibility for the content of this website lies with the authors. It does not necessarily reflect the opinion of the EC. The EC is not responsible for any use that may be made of the information contained therein.