To enhance the oxidation strength and crosslinking yield of ultrahigh molecular weight polyethylene (UHMWPE), its composites were prepared by mixing 1%, 2%, 3% (by wt.) magnesium silicate hydrous (sepiolite) during this study. These irradiated with 25 kGy 50 irradiation doses in open air. Subsequent to irradiation, characterized for updates structure, strength, degree while estimating values in...

Herein, we present the mechanical and piezoresistive behavior of MWCNT/UHMWPE nanocomposites processed via selective laser sintering (SLS) under tensile, flexural cyclic loadings. We show that uniform dispersion MWCNTs in UHMWPE enhances crystallinity (+10% for 0.5 wt% MWCNT) decreases porosity (as evidenced by μCT images), evincing lowest (∼1%) highest tensile strength 20.3 MPa which is ∼ 45% ...

In prosthetic joints, frictional heating may cause protein denaturation in synovial fluid which affect its lubrication properties. arthroplasty, conventional ultra-high molecular weight polyethylene (UHMWPE) is being gradually replaced by vitamin E stabilized, extensively cross-linked UHMWPE (VEXLPE) with a superior combination of wear and oxidation resistance. There scarcity literature on vs.V...

Abstract In order to predict the ballistic limit of ceramic/ UHMWPE composite protection, a theoretical model ceramic/UHMWPE protection for projectile was established based on A-T and fiber energy dissipation model. impact process, fragments will experience ceramic dwell, fragmentation layer dissipation. The obtained is compared with experimental simulation results. results show that residual v...

Bulletproof fabrics are usually used as create jackets to protect the user from being shot. These varied write according degree of expected risks and required levels protection. Different types materials fibers could be for achieving many properties different protections. The type number were affected on current market is looking reduce weight thickness these fabrics, in addition low cost. In a...

Introduction Long-term success of TKA depends on several factors including wear, fracture resistance, and oxidative stability. A recent evaluation has shown that when accelerated aging protocols are extended out to 40 days, an antioxidant-stabilized UHMWPE outperformed non-irradiated GUR 1020, by remarkably retaining its mechanical properties, while the reputed oxidatively stable material exper...

High density polyethylene (HDPE) / ultra high molecular weight (UHMWPE) blend is expected as an all-polyolefin recycle material that can achieve both mechanical properties and a continuous melt-mixing process. In order to improve the of polymer blends, optimal mixing required good dispersibility low degradation. this study, effect conditions on dispersion degradation behavior HDPE/UHMWPE blends...

Ultrahigh molecular weight polyethylene (UHMWPE) has remained the primary polymer used in hip, knee and shoulder replacements for over 50 years. Recent case studies have demonstrated that catastrophic fatigue fracture of the polymer can severely limit device lifetime and are often associated with stress concentration (notches) integrated into the design. This study evaluates the influence of no...

The effects of polytetrafluoroethylene (PTFE), graphite, ultrahigh molecular weight polyethylene (UHMWPE), and their compounds on mechanical and tribological properties of glass-fiber-reinforced polyamide 6 (PA6/GF) were studied. The polymeric materials were blended using twin-screw extruder and subsequently injection molded for test samples. Mechanical properties were investigated in terms of ...

Three different models, a modified Chandler loop, roller pump, and a new ball valve model (Hemobile), were compared with regard to intrinsic damage of blood components and activation of platelets. The Hemobile was used for testing of polymer tubes. High flow was not possible with the Chandler loop. The roller pump and the Hemobile could be adjusted to high flow, but he pump induced hemolysis. P...