Investigation of Heat Stepping Process for Epoxy-Amine Binders

Figure 3

Dependence of internal stresses change on temperature for compositions on the basis of epoxy resin hardened by modes: 1: Т = 293 K, 72 hours; 2: Т = 393 K, 2 hours; 3: Т = 293 K, 72 hours, Т₁ = 313 K, Т₂ = 303 K; 4: Т = 393 K, 2 hours, Т₁ = 313 K, Т₂ = 303 K; 5: Т = 293 K, 72 hours, Т₁ = 333 K, Т₂ = 313 K; 6: Т = 393 K, 2 hours, Т₁ = 333 K, Т₂ = 313 K; 7: Т = 293 K, 72 hours, Т₁ = 353 K, Т₂ = 323 K; 8: Т = 393 K, 2 hours, Т₁ = 353 K, Т₂ = 323 K.