ION CIUCA, MARIUS MARINEL STANESCU, DUMITRU BOLCU, LUMINITA FLORENTINA DEACONU (STANESCU) A STUDY OF SOME MECHANICAL AND CHEMICAL PROPERTIES OF COMPOSITE MATERIALS MADE UP OF UPR AND ISO/NPG GRANULES OF THE TYPE OF BUZI/PERDIDO CROMATE In this work we have measured the mechanical properties for unsaturated polyester resin (UPR) and unsaturated polyester resin mixed with isophthalic resin granules NPG (Neopentyl Glycol) of the type of Buzi/Perdido Chromate. All sets of samples underwent compression testing. We obtained the characteristic curve, the admissible resistance to compression, and the modulus of elasticity for each sample. Moreover, on the basis of FTIR analysis we measured the type of bonds (C-O, C=O, C-C and various bonds in the functional groups) in each polymer.
Keywords: composite materials, admissible resistance to compression, modulus of elasticity, chemical bonds