Polymeric composite materials can be obtained by adding fillers in the form of particles or fibers in a polymeric matrix and are intended to form a new material with properties different from those of pure components. Regarding polymeric composites, review the statements below and check which is true and which is false. (I) The mechanical properties of a fiber reinforced polymer composite are not influenced by fiber length. (II) Composites with unidirectional continuous fibers have isotropic mechanical properties. (III) The interfacial adhesion between matrix and dispersed phase does not influence the magnitude of the final mechanical properties of the composite.
(I) The mechanical properties of a fiber reinforced
(II) Composites with unidirectional continuous fibers have isotropic mechanical properties.
(III) The interfacial adhesion between matrix and dispersed phase does not influence the magnitude of the final mechanical properties of the composite.
(IV) In polymeric composites, fibers are normally less ductile than polymeric matrices.
(V) The specific area of a material at the nanoscale is significantly less than the specific area of the same material at the microscale.
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