Effect of self-assembled montmorillonite-carbon nanotubes on mechanical and interfacial properties of glass fiber-reinforced composites

doi:10.19936/j.cnki.2096-8000.20220728.006

Abstract

Abstract: To improve interfacial properties of glass fiber composites, a self-assembly of one-dimensional (1D) tubular multi-walled carbon nanotubes (MWCNTs) and two-dimensional (2D) layered montmorillonite (Mt) was performed to prepare 1D/2D Mt-MWCNTs nanohybrid, followed by the deposition of such nanohybrid onto the surface of glass fiber fabrics. Finally, the epoxy composite containing Mt-MWCNTs was prepared based on the vacuum bag molding process. The results show that the MWCNTs in hybrids could prevent the stacking of Mt, and layered Mt also could increase the dispersion of MWCNTs; layered Mt and tubular MWCNTs could synergistically strengthen and toughen epoxy composites. Compared with blank sample without Mt-MWCNTs, the interlaminar shear strength of epoxy composites containing Mt-MWCNTs was enhanced by about 28%, tensile strength and modulus of such composite were raised by 24% and 25%, respectively, and its flexural strength and modulus were promoted by 19% and 23%, respectively; the glass transition temperature of such composite increased by nearly 5 ℃.

Key words: carbon nanotubes, montmorillonite, fiber-reinforced composites, epoxy resin, surface/interface modification

CLC Number:

TB332

HUANG Dong-hui, ZENG Shao-hua. Effect of self-assembled montmorillonite-carbon nanotubes on mechanical and interfacial properties of glass fiber-reinforced composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2022, 0(7): 39-44.

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