
<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Fatima Athena D. Hubilla</style></author><author><style face="normal" font="default" size="100%">Glenson R. Panghulan</style></author><author><style face="normal" font="default" size="100%">Jason Pechardo</style></author><author><style face="normal" font="default" size="100%">Magdaleno R. Vasquez</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Mechanical properties of epoxy composites with plasma-modified rice-husk-derived nanosilica</style></title><secondary-title><style face="normal" font="default" size="100%">Japanese Journal of Applied Physics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2017</style></year><pub-dates><date><style  face="normal" font="default" size="100%">dec</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.7567%2Fjjap.57.01ag07</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">Japan Society of Applied Physics</style></publisher><volume><style face="normal" font="default" size="100%">57</style></volume><pages><style face="normal" font="default" size="100%">01AG07</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">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 (1–5%) 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–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.</style></abstract><issue><style face="normal" font="default" size="100%">1S</style></issue></record></records></xml>