
@article {Hubilla_2017,
	title = {Mechanical properties of epoxy composites with plasma-modified rice-husk-derived nanosilica},
	journal = {Japanese Journal of Applied Physics},
	volume = {57},
	number = {1S},
	year = {2017},
	month = {dec},
	pages = {01AG07},
	publisher = {Japan Society of Applied Physics},
	abstract = {In this study, we explored the use of rice-husk-derived nanosilica (nSiO2) as fillers in epoxy resins. The nSiO2 was irradiated with a capacitively coupled 13.56 MHz radio frequency (RF) plasma using an admixture of argon (Ar) and hexamethyldisiloxane (HMDSO) or 1,7-octadiene (OD) monomers. The plasma-polymerized nSiO2 was loaded at various concentrations (1{\textendash}5\%) into the epoxy matrix. Surface hydrophobicity of the plasma-treated nSiO2-filled composites increased, which is attributed to the attachment of functional groups from the monomer gases on the silica surface. Microhardness increased by at least 10\% upon the inclusion of plasma-modified nSiO2 compared with pristine nSiO2{\textendash}epoxy composites. Likewise, hardness increased with increasing loading volume, with the HMDSO-treated silica composite recording the highest increase. Elastic moduli of the composites also showed an increase of at least 14\% compared with untreated nSiO2-filled composites. This work demonstrated the use of rice husk, an agricultural waste, as a nSiO2 source for epoxy resin fillers.},
	doi = {10.7567/jjap.57.01ag07},
	url = {https://doi.org/10.7567\%2Fjjap.57.01ag07},
	author = {Fatima Athena D. Hubilla and Glenson R. Panghulan and Jason Pechardo and Magdaleno R. Vasquez}
}
