The compressive modulus and state parameters of nano/microcapsules calculated by applying the Sneddon's model.

Sample	Blank sample	Sample 3	Sample 8	Sample 9
w silica (%)	0	24.51	9.61	36.99
w polyurethane (%)	100	42.49	59.50	34.40
V f (%)	100	78.90	93.03	66.73
v 2	0.42	0.37	0.40	0.34
E* (GPa)	2.90	19.33	9.67	21.76
E sample (GPa)	2.39	16.73	8.10	19.28