
Properties Study of Basalt Fiber Reinforced Epoxy Resin Composites
ZHANG Qi, YU Rentong
Properties Study of Basalt Fiber Reinforced Epoxy Resin Composites
To enhance the properties of basalt fiber reinforced epoxy resin composites, polyaniline (PANI) was modified on the surface of basalt fiber (BF) using polydopamine (PDA) as the active site, and then combined with epoxy resin (EP) to prepare BF-PDA-PANI/EP composites. The results show that under different types and concentrations of inorganic acid conditions, the coating of PANI on the surface of BF-PDA was observed using scanning electron microscopy (SEM), and the best coating effect was found under 0.2 mol/L HCl condition. Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) were further used to verify the coating of PANI on the surface of BF. The tensile strength and flexural strength of BF-PDA-PANI/EP composites synthesized under 0.2 mol/L HNO3 condition were 7.24 MPa and 23.48 MPa, respectively; while the cantilever beam impact strength of BF-PDA-PANI/EP composites synthesized under 0.2 mol/L HCl condition was 27.55 MPa. Compared with BF/EP composites, the mechanical properties of BF-PDA-PANI/EP composites were significantly improved.
Basalt fiber / Epoxy resin / Mechanical properties / Polyaniline
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