Journal
JOURNAL OF THE TEXTILE INSTITUTE
Volume 111, Issue 4, Pages 550-554Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00405000.2019.1651155
Keywords
Multiscale composite; carbonate calcium; silanization; mechanical behavior; fracture surface
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Multiscale composites have been investigated by the addition of silanized carbonate calcium (CaCO3) as a secondary reinforcement into the matrix of carbon fiber/epoxy composites. The chemical modification of the CaCO3 nanoparticles was confirmed by Fourier-transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). Mechanical properties of the specimens were investigated by means of tensile, flexural, and compressive measurements to study the effect of treated CaCO3 loading (0.5, 1, 3 and 5 wt.%) on their mechanical behavior. Experimental results showed that the tensile, flexural and compressive strengths of the specimen filled with 3 wt.% treated CaCO3 composite enhanced by 14%, 36%, and 30% respectively, compared with those of neat one. The highest improvements in the mechanical moduli were observed in the multiscale composite filled with 5 wt.% treated CaCO3. Also, the fracture surface of the specimens was further analyzed in detail.
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