Effect of Sizing Agents on Surface Properties of T800 Grade CF and Thermal Aging Time on Mechanical Properties of T800 Grade CF/Epoxy Composites

Table 6

The thermal aging properties of CCF800/5228 composites—flexural strength and modulus.

Test temperature	Flexural strength (MPa)					Flexural modulus (GPa)
	Room temperature (25°C)		150°C		Retention rate (%)	Room temperature (25°C)		150°C		Retention rate (%)
Aging time (h)	Average value	Standard deviation	Average value	Standard deviation		Average value	Standard deviation	Average value	Standard deviation
0	1516	61	1220	44	80	117	5	118	4	101
100	1566	78	1187	24	76	116	4	114	4	98
250	1589	40	1215	27	76	115	4	116	2	101
500	1609	57	1259	72	78	116	4	115	4	99
750	1603	75	1288	36	80	117	3	116	4	99
1000	1612	56	1235	60	77	117	4	116	4	99