This paper is concerned with the effect of nano-SiO2 particles on the thermal stability and mechanical behavior of
composite materials. A nano-composite of three components is prepared by polymerizing nano-SiO2, chopped carbon
fiber and bismalemide resin. The investigation's basic approach involves a blend of experimental and analytical studies
to determine structure/property relationship. Nano-composite structures are characterized by dynamic mechanical
analysis, and contents of nano-SiO2 are subsequently correlated with mechanical properties such as tensile and flexural
strength also the modulus. The results indicate that the content of nano-SiO2 exhibits significant improvement on glass
transition temperature (Tg) with Tg elevation by increasing concentration of nano-SiO2. The higher Tg is the result of
steric hindrance by nano-SiO2 particles in the nano-composite. The mechanical properties of the tensile and flexural
strength are raised at first and followed by decreasing as the amount of nano-SiO2 particles increased. All the modulus
values mimic the tensile and flexural strength.
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