Twill woven Carbon-Kevlar (CK) fabric was reinforced in epoxy matrix by conventional hand lay-up process. The fabric weight fraction in the composites was kept around 58% and stacking sequence was varied from single t...Twill woven Carbon-Kevlar (CK) fabric was reinforced in epoxy matrix by conventional hand lay-up process. The fabric weight fraction in the composites was kept around 58% and stacking sequence was varied from single to five plies. Tensile test was performed and the fracture surface after tensile test was evaluated by scanning electron microscope (SEM). The test result revealed that the tensile properties are strongly dependent on the number of plies. Three point flexural test of the composite was also carried and an increasing trend was observed. Maximum impact energy was recorded for CK3 sample by 202.7 KJ/m2. Thermal stability of the composite was studied via the thermo gravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FT-IR) result show interaction between fiber and matrix material. Finally, CK fabric reinforced epoxy-based composites showed balanced and tailor-able mechanical properties by varying the number of plies, suitable for desired applications in many areas including building, construction, marine, automotive etc.展开更多
The superlative mechanical properties of carbon nanotubes make them the filler material of choice for composite reinforcement.Carbon nanotubes have been considered to be one of the most researched materials of the 21s...The superlative mechanical properties of carbon nanotubes make them the filler material of choice for composite reinforcement.Carbon nanotubes have been considered to be one of the most researched materials of the 21st century.In this paper,carbon nanotubes reinforced Kevlar composite and its application in personal armor has been analyzed as well as the processing cost being evaluated.The advantages and disadvantages of the nanocomposite for the application were shortlisted.Current and future developmental trends for this application were discussed.展开更多
文摘Twill woven Carbon-Kevlar (CK) fabric was reinforced in epoxy matrix by conventional hand lay-up process. The fabric weight fraction in the composites was kept around 58% and stacking sequence was varied from single to five plies. Tensile test was performed and the fracture surface after tensile test was evaluated by scanning electron microscope (SEM). The test result revealed that the tensile properties are strongly dependent on the number of plies. Three point flexural test of the composite was also carried and an increasing trend was observed. Maximum impact energy was recorded for CK3 sample by 202.7 KJ/m2. Thermal stability of the composite was studied via the thermo gravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FT-IR) result show interaction between fiber and matrix material. Finally, CK fabric reinforced epoxy-based composites showed balanced and tailor-able mechanical properties by varying the number of plies, suitable for desired applications in many areas including building, construction, marine, automotive etc.
文摘The superlative mechanical properties of carbon nanotubes make them the filler material of choice for composite reinforcement.Carbon nanotubes have been considered to be one of the most researched materials of the 21st century.In this paper,carbon nanotubes reinforced Kevlar composite and its application in personal armor has been analyzed as well as the processing cost being evaluated.The advantages and disadvantages of the nanocomposite for the application were shortlisted.Current and future developmental trends for this application were discussed.
