Weband compared them with those of Chronoflex, a carbonate polyurethane. Chronoflex was chosen as comparator material because of its wide use in stent and catheter production. The material has an en-hanced resistance to biologically-induced environ-mental cracking such as that provoked by the ac-tion of macrophage enzymes (8). In terms of me- WebApr 9, 2016 · The synthesized TPUs, with hardness in the range of 80–90°Sh A, possessed a good tensile strength (33.0–38.7 MPa), similar to that of commercial biodurable medical grade TPU (PCD/HMDI/BD), i.e., ChronoFlex ® AL 80A (37.9 MPa) . The TPUs obtained by us, both transparent and non-transparent, can be attractive in many medical appliances.
AdvanSource Biomaterials ChronoFlex® C 80A Biodurable …
WebFeb 1, 2005 · ChronoFlex 80A showed some evidence of very minor hydrolysis, as evidenced by small decreases in soft and hard segment absorbances and changes in mechanical properties. Pellethane 80A did not show any significant changes in mechanical or chemical properties. WebMishra et al. conducted an in vitro hydrolytic study on the PU (Chronoflex-80A) for 12 months and found that the water uptake was ∼0.5% and the molecular weight decrease was relatively modest. twitch rivals ak
Mechanical behavior of polyurethane-based small-diameter vascular ...
http://www.lookpolymers.com/pdf/AdvanSource-Biomaterials-ChronoFlex-C-80A-Biodurable-Medical-Grade-Polyurethane.pdf WebFeb 1, 2005 · Corethane 80A, a commercially available polycarbonate urethane (PCU), presently branded as Bionate (produced under licence by Polymer Technology Group, Berkeley, CA), exhibited excellent resistance to these degradation mechanisms, implying that the material could provide a more robust bearing layer in a prototype compliant layer … http://www.advbiomaterials.com/products/polycarbonate/chronoflex_al.html twitch rivals destiny raid