Development of bio-based F-SBA-15 reinforced epoxy nanocomposites for low-k dielectric applications

Abstract

The present work focuses on the utilization of renewable biomaterial as reinforcement for the development of nanocomposites for high-performance low-k microelectronic applications. In the present work, rice husk ash (RHA) was chemically treated and processed to obtain two-dimensional mesoporous silica (SBA-15), which was functionalized using 3-glycidoxypropyl trimethoxy silane through sonication process. The surface functionalized SBA-15 (F-SBA-15) with varying weight percentages (1, 3, and 5 wt%) was incorporated into the epoxy resin. The resulting F-SBA-15-reinforced epoxy composites were characterized by Fourier transform infrared spectroscopy, x-ray diffraction, differential scanning calorimetry, thermogravimetric analysis, and impedance analyzer. Among the composite samples with varying loadings, the dielectric behavior of 5 wt% F-SBA-15-loaded composite sample possesses the lowest value of dielectric constant, that is, 2.14 at 1 MHz frequency when compared with that of other samples. Further, the thermal stability was also enhanced to an appreciable extent, when compared with that of the samples with lower F-SBA-15 loadings.

Replacement of Commercial Silica by Rice Husk Ash in Epoxy Composites: A Comparative Analysis

“…Since RHAs are richer in carbon content, in particular the RHA-MG, the thermograms of the composites prepared with different amounts of RHAs presented higher mass loss when compared with those prepared with silica. Previous studies that analyzed epoxy composites prepared with small amounts of RHA (of up to 5%) reported similar degradation behavior as that observed in the present work, also at one stage only and at temperature above 300 ºC 30,31 . For the authors of these works, such behavior indicates the absence of volatiles such as water or solvents.…”

Optical and thermomechanical behavior of benzoxazine functionalized ZnO reinforced polybenzoxazine nanocomposites

“…Thermoset matrices found major applications in the field of matrices, coatings, sealants, and adhesives . Among the class of thermoset matrices, polyimides were most widely used in space environment because of their durable behavior .…”

Thermal and mechanical properties of liquid‐like trisilanol isobutyl‐polyhedral oligomeric silsesquioxanes (POSS) derivative/epoxy nanocomposites

“…The residual epoxy groups in curved system are one of the indexes of crosslinking density. The less the epoxy group remains, the higher crosslinking density and better thermal and mechanical properties the epoxy has . The FTIR spectra of epoxy resin without L‐POSS‐D and nanocomposite with 2.0 wt% L‐POSS‐D are shown in Fig.…”

“…Impact strength of epoxies with modified HNTs was 240% higher than pure epoxy matrix. Prabunathan et al modified rice husk ash with 3‐glycidoxypropyl trimethoxy silane through sonication process into two‐dimensional mesoporous silica (F‐SBA‐15). The F‐SBA‐15 was incorporated into the epoxy resin to prepare nanocomposites.…”