Viscoelastic Polyurethane Foams for Use as Auxiliary Materials in Orthopedics.

ABSTRACT: One of the essential factors in prostheses is their fitting. To assemble a prosthesis with the residual limb, so-called liners are used. Liners used currently are criticized by users for their lack of comfort, causing excessive sweating and skin irritation. The objective of the work was to develop viscoelastic polyurethane foams for use in limb prostheses. As part of the work, foams were produced with different isocyanate indexes (0.6-0.9) and water content (1, 2 and 3 php). The produced foams were characterized by scanning electron microscopy, computer microtomography, infrared spectroscopy, thermogravimetry and differential scanning calorimetry. Measurements also included apparent density, recovery time, rebound elasticity, permanent deformation, compressive stress value and sweat absorp

SUBMITTER: Grzeda D 

PROVIDER: S-EPMC8746291 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature