Table 1 Mechanical properties and the minimum value of PMMA-based denture resin according to the ISO standard (20795-2(a) and 1567(b)).
From: Carbon nanotube incorporation in PMMA to prevent microbial adhesion
Fracture toughness | Impact strengthb | 3 point flexural test | Biological test | |||
|---|---|---|---|---|---|---|
Total fracture worka | Maximum stress intensity factora | Ultimate flexural strengtha | Elastic modulusa | |||
Standard | 250 J/m2 | 1.1 Mpam1/2 | 2 kJ/m2 | 50 MPa | 1500 MPa | Included |
0% CNT | + | + | − | + | + | Included |
0.25% CNT | + | + | − | + | + | Included |
0.5% CNT | + | + | − | + down | + down | Included |
1% CNT | + up | + | − | + down | + down | Included |
2% CNT | + up | + down | − down | − down | − down | Excluded |
