Open AccessPROPERTIES OF COMPOSITIONAL MATERIALS BASED ON THE MIXTURES OF EPOXY POLYMERS AND OLIGOSULFONES. PART 3. PHYSICO-MECHANICAL PROPERTIES
Author(s) -
Ю С Кочергин,
Yuriy Kochergin,
В В Золотарёва,
Viktoriya Zolotareva
Publication year - 2019
Publication title -
vestnik bgtu im. v.g. šuhova
Language(s) - English
Resource type - Journals
ISSN - 2071-7318
DOI - 10.34031/2071-7318-2019-4-11-101-111
Subject(s) - epoxy , polymer , ultimate tensile strength , materials science , composite material , modulus , deformation (meteorology) , young's modulus , composite number
The influence of modifying additives of oligosulfones of different molecular weight with terminal carboxyl and phenolic groups on the physical and mechanical properties of epoxy polymers is investigated. It is found that the modification allows to increase the tensile strength by 32, the deformation at break by 85, the modulus of elasticity by 47 and the failure rate by 123 %. The maximum set of properties is realized when the epoxy polymer is introduced into the composition of 3–5 wt. с. of oligosulfone with a molecular weight of 4700. It is shown that the magnitude of the effect depends significantly on the amount of the modifier introduced and its molecular weight. The chemical nature of the end groups has little effect on the basic deformation and strength properties. The results of the work allow to recommend the studied oligosulfonsfones for the production of composite polymer materials of structural purpose with improved physical and mechanical properties on the basis of epoxy resins.