EPOXIDE COMPOSITION FOR MAKING ARTICLES FROM POLYMER COMPOSITE MATERIALS BY VACUUM INFUSION Russian patent published in 2013 - IPC C08L63/00 C08L63/02 C08K5/3445 B82B1/00 B82Y30/00 

FIELD: chemistry.

SUBSTANCE: invention relates to cold curing epoxide compositions and can be used in making structures, including large-sized structures, from polymer composite materials by vacuum infusion in engineering fields. The epoxide composition includes an epoxide base containing epoxy-diane resin, an active diluent and a curing system based on an amine curing agent and a surfactant, characterised by that the epoxy-diane resin used is a resin or a mixture of resins with molecular weight 340-430, the active diluent used has viscosity of up to 0.1 Pa·s, the amine curing agent is a mixture of a curing agent basedd on an aromatic amine and a cold curing catalyst, and the curing system further includes a heterocyclic imidazole-type compound and a nanomodifier. The technical result is preparation of a high-technology epoxy composition, curable without the need for additional heat and without a large exothermic effect, and characterised by improved physical and mechanical properties.

EFFECT: composition is characterised by high modulus of elasticity of 3,8-4,2 GPa, which allows its use in making deformation-resistant articles from polymer composite materials with higher structural strength.

7 cl, 3 tbl, 12 ex