Investigation On Fabrication And Mechanical Properties Of Particle Filled Basalt Fiber Reinforced Epoxy Resin Matrix Composites

The study of curing agent and basalt fiber content were investigated.On the basis of these results,the composites were filled with aluminum powder and carbon nanotubes,and its properties were tested and analyzed.The results of curing agent and basalt fiber content show that with the increasing of curing agent content,the ultimate quasi-static compressive strength and ultimate dynamic compressive strength of epoxy resin get increased however later decreased.When the mass ratio of curing agent to epoxy resin is 8:10,the ultimate quasi-static compressive strength and ultimate dynamic compressive strength of the materials is highest.With the basalt fiber content increased from 50vol% to 75vol%,the quasi-static and dynamic mechanical properties of composites get increased however later decreased.The results of aluminum filling show that with the content of aluminum content increased from 0wt% to 50wt%,the quasi-static and dynamic compressive mechanical properties of aluminum powder filled basalt fiber reinforced epoxy resin matrix composites decreased.This phenomenon is for the reason that the aluminum particles in the resin matrix are difficult to penetrate between the fiber bundles filaments,and the uniform dispersion can not be achieved.Where aluminum powder concentrated,the interfacial bonding strength of the composites is bad,cracks are easy to initiate and expand among the interface of the composite during the mechanical property test.The results of carbon nanotube filling show that the carboxylic carbon nanotubes were well dispersed in epoxy resin,which can obviously improves the ultimate quasi-static and ultimate dynamic compressive strength of the epoxy resin.With the content of carboxylic carbon nanotubes increased from 0wt% to 1.5wt%,the ultimate quas-static and ultimate dynamic compressive strength of the materials both get increased however later decreased.When the content of carboxyic carbon nanotubes is 1wt%,the ultimate quasi-static and ultimate dynamic compressive strength of the materials are the highest.When the content of carboxylic carbon nanotubes continued to increase to 1.5wt%,the aggregation of carbon nanotubes happened,and the ultimate quasi-static and ultimate dynamic compressive strength of the material decreased.The carboxylic carbon nanotubes of 1wt% were then filled into basalt fiber reinforced epoxy resin composites,its ultimate quasi-static and ultimate dynamic compressive strength were 405 MPa and 609 MPa,35MPa and 44 MPa higher than the unfilled composites.This phenomenon is for the reason that the carboxylic carbonnanotubes improved the interfacial bonding strength between the epoxy resin and the basalt fiber.