Published 1994 | Version v1
Book Metadata-only

Development of an accelerated aging method for evaluation of long-term irradiation effects on UHMWPE implants

Creators

  • 1. Howmedica Inc., Rutherford, NJ (United States)

Description

A general scheme for developing an accelerated aging method for irradiated biomaterials is proposed. Using UHMWPE implants as an example, an accelerated thermal diffusion oxidative aging (ATDOA) method has been developed. The method requires an optimum initial heating rate and an optimum aging temperature to accelerate oxidation reactions. Based upon oxidation-induced material property changes (crystallinity by DSC, tensile properties by ASTM D638 tensile test, and oxidation index by FTIR), correlations between accelerated aging time, shelf aging time, and implantation time can be obtained. The new ATDOA method allows a rapid evaluation of long-term irradiation effects on the material properties of UHMWPE implants

Additional details

Publishing Information

Publisher
American Chemical Society.
Imprint Place
Washington, DC (United States)
Imprint Title
208th ACS national meeting
Imprint Pagination
2072 p.
Journal Page Range
p. 1473-1474, Paper POLY 333.

Conference

Title
208. American Chemical Society national meeting.
Dates
21-26 Aug 1994.
Place
Washington, DC (United States).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
26024151
Subject category
S36: MATERIALS SCIENCE; S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CHEMICAL RADIATION EFFECTS; IMPLANTS; PHYSICAL RADIATION EFFECTS; POLYETHYLENES; PROBABILISTIC ESTIMATION
Descriptors DEC
ORGANIC COMPOUNDS; ORGANIC POLYMERS; POLYMERS; POLYOLEFINS; RADIATION EFFECTS

Optional Information

Secondary number(s)
CONF-940813--.