text size A A A

X3 Bearing Technology

Oxidation Resistance

X3 polyethylene demonstrates high oxidation resistance under extreme laboratory conditions (immersion in 5 atmospheres of oxygen at 70-degrees C for 14 days)1,2.

X3 polyethylene maintains mechanical properties after accelerated oxidative age laboratory testing. No statistical difference was found for tensile-yield strength, ultimate tensile strength, and elongation.1-3

Stryker Corporation or its divisions or other corporate affiliated entities own, use or have applied for the following trademark(s) or service mark(s): X3 Advanced Bearing Technology. All other trademarks are trademarks of their respective owners or holders.
References

1. X3 UHMWPE maintains mechanical properties after accelerated aging. No statistical difference was found for Tensile Yield , Ultimate Tensile Strength and Elongation as measured per ASTM D638 before and after exposure to ASTM F2003 accelerated (5 Atmospheres (ATM) of oxygen at 70°C for 14 days). Tensile Yield Strength was 23.5 ± 0.3 MPa and 23.6 ± 0.2 MPa, Ultimate Strength was 56.7 ± 2.1 MPa and 56.3 ± 2.3 MPa and Elongation was 267 ± 7 percent and 266 ± 9 percent before and after oxidative aging, respectively.

2. X3 UHMWPE resists the effects of oxidation. No statistical was found for Tensile Yield Strength, Ultimate Tensile, Elongation, Crystallinity and Density as measured per D638, D3417 and D1505 before and after ASTM F2003 accelerated aging (5 ATM of oxygen at 70°C for 14 days). Tensile Strength was 23.5 ± 0.3 MPa and 23.6 ± 0.2 MPa, Ultimate Strength was 56.7 ± 2.1 MPa and 56.3 ± 2.3 MPa, Elongation was 267 ± 7 percent and 266 ± 9 percent, Crystalllinity was 61.7 ± 0.6 percent and 61.0 ± 0.5 percent and Density was 939.2 ± 0.1 kg/m3 before and after accelerated oxidative aging, respectively.

3. Schmalzried T, et al, “Long-Duration Metal-on-Metal Total Hip Arthroplasties with Low Wear of the Articulating Surfaces,” Journal of, Vol. 11, No. 3, 1996.