Polymer Composites, Год журнала: 2024, Номер unknown

Опубликована: Дек. 19, 2024

Abstract Poor interfacial compatibility is a key factor limiting the mechanical properties of basalt fiber reinforced polymer composites (BFRPs). Constructing hybrid interfaces that combine rigid nanoparticles with flexible sizing agents presents promising strategy to enhance these properties. In this study, we first identified most suitable coupling agent from series candidates, including amino, epoxy, and methacryloxy functional groups. Using selected as inorganic nano‐SiO 2 component, two types were developed: homogeneous organic/inorganic interface gradient‐modulus structure, which fabricated via direct deposition in‐situ growth methods, respectively. The results demonstrated BFRPs gradient modulus effectively absorb dissipate crack energy under loading, resulting in significantly improved interlaminar shear strength (ILSS), tensile strength, flexural increased 56.24, 541, 793 MPa, respectively, representing improvements 40.81%, 15.35%, 32.38%. Fracture morphology analysis further confirmed reinforcement mechanism “rigid‐flexible” interfaces. This work can provide valuable insights for developing high‐performance fiber‐reinforced composites. Highlights Suitable silane was (BF) epoxy Organic/inorganic established. Uniformly distributed SiO fully covered boosts bonding. Interfacial, modified all improved.

Язык: Английский