Comparison of Kevlar/Carbon Fiber Fabric and Prepreg Carbon, Processed Byvacuum Assisted Resin Transfer Molding and Pseudo-Autoclave Respectively
This work came about from a senior design project to develop a composite toed boot as an alternative to steel toed boots. Three materials were utilized, a carbon preimpregnated (prepreg) fabric, a Kevlar/carbon hybrid fabric and steel. Two techniques were utilized for processing the composite materials, a pseudo-autoclave and vacuum assisted resin transfer molding (VARTM). The pseudo-autoclave was developed as a more affordable means for processing the carbon prepreg. VARTM was used to process the Kevlar/carbon hybrid fabric. Mechanical and physical properties were measured, these included Impact Energy testing, three point flexural testing and density measurements. These measurements provided a means for obtaining the fiber volume fraction on the composite materials to better analyze the results. The testing showed that the carbon prepreg processed by the pseudo-autoclave gave below optimal results while the Kevlar/carbon fiber composite processed by VARTM provided the best product.
Author: Alessandro Rengan and Jamal Robinson
Conference: SAMPE Seattle 2017