Basalt fibers were functionalized by ZnO electroless deposition for obtaining a nanostructured interphase for enhancing the interfacial strength with an epoxy resin matrix. The structural, morphological and wetting properties of the pristine basalt fabrics and ZnO-coated basalt fabrics were evaluated. The fabrics were uniformly coated with ZnO nanostructures featuring a wurtzite structure and a twin hexagonal prism morphology. The contact angle measurements revealed that ZnO prisms transformed the hydrophilic basalt fabric into a hydrophobic one (~130°). ZnOs were also grown on the basalt fibers as yarns to evaluate their interfacial adhesion by single fiber pull-out tests. The results emphasize significant improvement in the apparent interfacial shear strength (~42%) with limited degradation of the pristine basalt fiber tensile strength (a reduction of ~ 17%). Therefore, ZnO electroless deposition can be regarded as an effective route to improve the mechanical performance of basalt/epoxy composites expanding their potential range of applications as structural materials.

Functionalization of basalt fibers with ZnO nanostructures by electroless deposition for improving the interfacial adhesion of basalt fibers/epoxy resin composites / Preda, N.; Costas, A.; Lilli, M.; Sbardella, F.; Scheffler, C.; Tirillo', J.; Sarasini, F.. - In: COMPOSITES. PART A: APPLIED SCIENCE AND MANUFACTURING. - ISSN 1359-835X. - 149:(2021). [10.1016/j.compositesa.2021.106488]

Functionalization of basalt fibers with ZnO nanostructures by electroless deposition for improving the interfacial adhesion of basalt fibers/epoxy resin composites

Lilli M.;Sbardella F.;Tirillo' J.;Sarasini F.
2021

Abstract

Basalt fibers were functionalized by ZnO electroless deposition for obtaining a nanostructured interphase for enhancing the interfacial strength with an epoxy resin matrix. The structural, morphological and wetting properties of the pristine basalt fabrics and ZnO-coated basalt fabrics were evaluated. The fabrics were uniformly coated with ZnO nanostructures featuring a wurtzite structure and a twin hexagonal prism morphology. The contact angle measurements revealed that ZnO prisms transformed the hydrophilic basalt fabric into a hydrophobic one (~130°). ZnOs were also grown on the basalt fibers as yarns to evaluate their interfacial adhesion by single fiber pull-out tests. The results emphasize significant improvement in the apparent interfacial shear strength (~42%) with limited degradation of the pristine basalt fiber tensile strength (a reduction of ~ 17%). Therefore, ZnO electroless deposition can be regarded as an effective route to improve the mechanical performance of basalt/epoxy composites expanding their potential range of applications as structural materials.
nano-structures; polymer-matrix composites (PMCs); fibre/matrix bond; interface/interphase
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Functionalization of basalt fibers with ZnO nanostructures by electroless deposition for improving the interfacial adhesion of basalt fibers/epoxy resin composites / Preda, N.; Costas, A.; Lilli, M.; Sbardella, F.; Scheffler, C.; Tirillo', J.; Sarasini, F.. - In: COMPOSITES. PART A: APPLIED SCIENCE AND MANUFACTURING. - ISSN 1359-835X. - 149:(2021). [10.1016/j.compositesa.2021.106488]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1555859
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