Technological and Operational Properties of Filling Epoxy Foam Plastics for Construction Purposes

The influence of the chemical nature and content of aliphatic polyamines and reactive modifiers on the technological and physical-mechanical properties, heat resistance and flammability of casting epoxy foam plastics for construction purposes is considered. It is shown that polyepoxide foams obtained using a mixture of polyaminoalkylimidazoline grade UP-0641D and polyethylenepolyamine in a ratio of 4:1 as an amine hardener have high technological and operational characteristics. The influence of the content of a chemical blowing agent (water-repellent liquid grade 136-41) on the apparent density and strength characteristics of casting epoxy foam plastics is revealed. The influence of the chemical nature of epoxy modifiers on the properties of casting polyepoxide foams is considered. It is proposed to use a condensation product of shale resin with hexamethylenetetramine and formaldehyde as an effective modifier for epoxy foam plastics.