Investigation on Aging Model of Solid Propellant Using the Degree of Crosslinking

Table 1

Tests for determination of aging development equations of relaxation modulus and VPR.

Temperature	Aging time (days)	Number of tests	Stretching velocity (mm·min^-1)
75°C	0, 3, 5, 7, 9, 11, 16, 21, 26, 31, and 41	3	−−
20°C	0, 3, 5, and 7	−−	−−
20°C	5, 11, 26, and 31	−−	1.68, 3.36, and 5.04