Flexural and wear properties of E-glass chopped strand mat/epoxy composite laminates containing silanized nano-CaCO3. Issue 4 (17th March 2022)

• Record Type: Journal Article
• Authors: Khorasani, Reyhaneh; Tohidlou, Esmaeil; Khosravi, Hamed
• Is Part Of: Journal of the Textile Institute. Volume 113:Issue 4(2022)
• Page Start: 541
• Page End: 548
• Publication Date: 2022-03-17
• Subjects: Multiscale composite -- CaCO3 -- functionalization -- flexural properties -- wear behavior; Textile industry -- Periodicals; Textile fabrics -- Periodicals; Periodicals; 677.005
• DOI: 10.1080/00405000.2021.1891754
• Languages: English
• ISSNs: 0040-5000

Abstract

Abstract: The objective of this work was to enhance the mechanical properties of E-glass chopped strand mat (CSM)/epoxy composite via the incorporation of CaCO3 nanoparticles in the matrix. 3-aminopropyltrimethoxysilane as an organosilane compound was utilized to functionalize the surface of CaCO3 nanoparticles. The multiscale composites containing functionalized-CaCO3 (f-CaCO3 ) with various weight fractions (0.5, 1, 3, and 5 wt.%) were prepared to explore the effects of f-CaCO3 on the flexural and wear properties. The results of the three-point bending test demonstrated that 1 wt.% f-CaCO3 addition led to a maximum enhancement of 44% in the flexural strength of the CSM/epoxy composite. In addition, 42% enhancement in flexural modulus was achieved with the addition of 3 wt.% f-CaCO3 . The results of the wear tests showed that the f-CaCO3 /epoxy matrix could provide enhanced wear resistance and the maximum resistance was obtained via adding 3 wt.% f-CaCO3 . Incorporation of 3 wt.% f-CaCO3 resulted in 56% and 43% reductions in wear rate and friction coefficient of the CSM/epoxy composite, respectively. It was also found that the silanization of CaCO3 had a significant effect on flexural and wear properties. Scanning electron microscopy analysis of the fracture and worn surfaces clearly revealed that the nano-CaCO3 addition resulted in improved fiber-matrix interfacial bonding.