Effect of Quinacridone Pigments on Properties and Morphology of Injection Molded Isotactic Polypropylene

Table 3

Mechanical properties of isotactic polypropylene modified with quinacridone pigments.

Sample	Tensile strength	Young modulus	Elongation at break	Impact strength
	(MPa)	(MPa)	(%)	(kJ/m^2)
Polypropylene (iPP)
iPP -quinacridone (ER 02)
0.01 wt%	32.2 ± 0.4	1332 ± 40	199 ± 30	39.7 ± 6.3
0.05 wt%	33.1 ± 0.3	1423 ± 49	175 ± 33	43.1 ± 2.5
0.1 wt%	33.4 ± 0.2	1376 ± 44	155 ± 40	31.2 ± 7.8
0.5 wt%	34.1 ± 0.1	1421 ± 39	113 ± 41	28.3 ± 3.2
1 wt%	34.2 ± 0.2	1411 ± 32	83 ± 24	24.5 ± 2.5
2 wt%	33.6 ± 0.2	1378 ± 18	44 ± 7	15.9 ± 4.5
iPP -quinacridone (E5B)
0.01 wt%	31.5 ± 0.6	1284 ± 82	197 ± 61	45.5 ± 4.8
0.05 wt%	32.1 ± 0.2	1308 ± 73	164 ± 42	37.8 ± 7.9
0.1 wt%	32.3 ± 0.2	1317 ± 66	144 ± 36	38.4 ± 4.7
0.5 wt%	33.1 ± 0.2	1373 ± 83	99 ± 24	24 ± 2.5
1 wt%	33.1 ± 0.3	1357 ± 104	49 ± 25	20.7 ± 3.2
2 wt%	32.9 ± 0.2	1364 ± 68	26 ± 5	16.6 ± 1.1