polymerjournals Chemistry, materials, technology
Polymers and Polymer Composites

A NEW METHOD FOR TESTING AND EVALUATING THE LONG-TERM RESISTANCE TO OXIDATION OF POLYOLEFINIC PRODUCTS

January 1, 2008 By: Schroeder H F; Munz M; Boehning M Research article

Title: A NEW METHOD FOR TESTING AND EVALUATING THE LONG-TERM RESISTANCE TO OXIDATION OF POLYOLEFINIC PRODUCTS
Page Range: p.71-79
Author(s): Schroeder H F; Munz M; Boehning M
File size:
Download the pdf (subscribers only)
Buy the pdf (non-subscribers)
Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 16
Issue No: No.1

Abstract
A report is presented on the development of a test for determining the long-term oxidation resistance of polyolefin materials, which is accelerated not only by elevated temperatures but also by increased oxygen pressure and a stirred aqueous medium. The method permits durability tests to be carried out at markedly lower temperatures with reasonable testing durations and significantly reduced diffusion limited oxidation effects and allows for physical and chemical impacts of aqueous media. Oxidative durability can be assessed by autoclave immersion exposures at three different temperatures (60, 70 and 80 degrees C) and 50 bar oxygen pressure and at 80 degrees C and two different oxygen pressures (usually 10 and 20 bar). Accelerated test data are evaluated by modified Arrhenius equations with the application of a three-dimensional regression analysis. The application of the test method to various materials, including PP non-woven materials and geosynthetics is demonstrated. 10 refs.

Related reading

More journal reading and science coverage connected to this topic.