Characterization of Carbon Black and Phenol Formaldehyde Composites

摘要

When two or more material with different properties is combined, they form a composite material . The constituents are combined in such a way that they keep their individual physical phases and are nonsoluble in each other or do not form a new chemical compound. That is why a composite is any multiphase material system that exhibits a combination of properties that makes the composite superior to each of the constituent phases 1. The primary function of matrix is to hold the fiber to form a certain shape. Besides, the functions of the matrix are also to transfer stress between the reinforcing fibers and to protect them from mechanical and environmental damage. The function of reinforcing phase in matrix is to improve the mechanical properties such as strength, stiffness etc. As per Berghezan the composite material is to be designed in such a way that the individual component retains their characteristic are so incorporated that the composite takes advantage of their superior properties without compromising on the weakness of either. When the matrix is a polymer, the composite is called polymer matrix composite 2.