One has to realize that the best design for cars, aircraft or parts of machines is to be able to carry the loads and conditions of service, from here to the composite materials to combine two or more materials that often have completely different properties Which work together (those materials) to give unique vehicle properties, to be used in electrical, thermal and environmental applications. The composite materials used in the research on epoxy and phenol formaldehyde resins have been mixed in different proportions and then reinforced with carbon fibers, fiberglass and Kevlar fibers to demonstrate the effect on both Electrical conductivity and Electrical dielectric.

Phenolic formaldehyde (resole) resin was used at a different weight (10%, 20%, 30%, 40%), with epoxy resins at varying percentages (90%, 80%, 70%, 60%) at 20 C °. In order to study the mechanical properties (which including: Tensile strength, hardness and shock resistance), for the purpose of analysis and comparison with the mechanical properties of alloys, and the selected part for the purpose of replacing the alloy with the composite materials to reduce weight and improve mechanical properties. The results indicate improved properties with increased epoxy resins due to increased bonding between components.

This research aims to study the effect of glass fibres and aluminium nanoparticles on the mechanical properties of composite materials containing epoxy resins and phenol formaldehyde in different proportions. The results showed that adding phenol formaldehyde to epoxy in a ratio of (10/90) improved the properties, and that reinforcement with glass fibres and aluminium nanoparticles increased the use of these materials by increasing their applications through the possibility of replacing the basin liner with paint. Composite materials used in the research. Compounds are common and used in almost every field, and the idea for reinforcement is to improve the properties of the compounds.

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