Enhancing Dielectric and Flexural Properties of Glass Fiber Composites via Vacuum Pressure Impregnation

This research focuses on examining the capabilities of VPI in improving the mechanical and dielectric characteristic of glass fiber composites. Thus, vacuum and pressure used in VPI enhance resin infiltration within the fibre structures minimizing the void volume thus enhancing the performance of the composites. This work shows that when the VPI process is applied on glass fibre composites with epoxy polymer, then dielectrics strength of 15. About 12 kV/mm and the flexural bending stress was established to be 489.33 MPa. Statistical was performed using Analysis of variance (ANOVA) which revealed that the performances of all the properties were significantly improved due to the implementation of VPI. From the results of this study, it is seen that VPI is efficient for creation of new composites possessing enhanced dielectric characteristics, which allows the non-destructive application of high voltage circuit breakers in electro engineering. The findings have provided important findings necessary for achieving best microstructures that have enhanced the construction of advanced composite materials hence enriching the subject of composite material science.