Functional Modification Effect of Epoxy Oligomers on the Structure and Properties of Epoxy Hydroxyurethane Polymers

Table 3

Physicomechanical properties of polymers obtained under different conditions of curing epoxy-amine compositions.

Composition	Curing mode	Physical and mechanical properties
		σр (MPa)	εр (%)	τв (MPa)	σр.о (MPa)	Tс (°C)
ED-20 + DETA	7 d at (22 ± 2°C)	20.7	0.6	4.6	8.8	46
	1 d at (22 ± 2°C) and 10 h at 100°C	72.5	2.5	12.5	28.0	108
ED-20 + DCC/DEG-1 + DETA	7 d at (22 ± 2°C)	75.2	5.2	15.8	30.5	42
	1 d at (22 ± 2°C) and 10 h at 100°C	88.3	4.4	22.8	50.0	68