The effect of temperature modes of curing on the parameters of the molecular mesh of epoxy and polyester copolymers

Abstract

Establishment of formation regularities and structure of mesh polymers, as well as methods of their regulated synthesis allow rational management of technological processes in production and processing of materials based on them. The possibility of directional variation of crosslinking parameters of epoxy and polyester resins using polyamide hardener has been determined. For this purpose the influence of temperature modes of curing, mixing technology and the ratio of initial components has been studied. Initially the values of Huggins constants have been calculated, for this purpose the use of chloroform, xylene, and dimethylformamide has been investigated. On the basis of the obtained results, the selection of a solvent, providing optimal swelling criteria for the synthesized copolymer, has been carried out. Experimental data describing the swelling process of the copolymer samples have been obtained. With the use of Flory equation, the parameters of structural meshes of the developed polymer compositions have been calculated