Читать книгу Metal Oxide Nanocomposites - Группа авторов - Страница 47

Flakes composites have densely packed structures and are much cheaper than fibers. When using the metal flakes in polymer matrices, electricity or heat conductivity is observed, which is not in the case of mica and glass flakes [14]. More often, the flakes fall short of expectations while controlling the size, shape and hence leads to defective product. Flakes composed of glass materials have notches and cracks around their edges, which weaken the final product. When held together in a matrix with a glue-type binder, it is difficult to align them parallel to each other thus leading to an uneven strength. Flakes offer various advantages to fibers in structural applications. Angle-plying is easier in flakes than in continuous fibers [17]. Flake composites possess higher theoretical modulus of elasticity and much cheaper to produce and be handled in small quantities than fiber reinforced composites.