Accelerated aging of polyimide/titanium adhesive bonds using the notched coating adhesion test.: An article from: Polymer Engineering and Science

This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on August 1, 2002. The length of the article is 4088 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

From the author: The effect of elevated temperature aging on the interphase of a polyimide adhesive and a titanium substrate has been investigated. An interfacially debonding adhesive test was applied, and the adhesive/substrate interphase was characterized through an analysis of the failure surfaces. To facilitate the aging study, an "open-faced" adhesive geometry, the notched coating adhesion (NCA) test, was used. Use of this adhesive geometry allows an acceleration of diffusion-related aging phenomena by up to two orders of magnitude. as compared to a traditional "sandwiched" bond. The failure surfaces were characterized using X-ray photoelectron spectroscopy and optical microscopy. Bulk adhesive properties were investigated using differential scanning calorimetry and solvent uptake. Although there was evidence of polyimide degradation within the interphase, only minor changes in the bulk polyimide properties were detected. This indicates that the adhesive may be degrading preferentially in the interphase region.

Citation Details
Title: Accelerated aging of polyimide/titanium adhesive bonds using the notched coating adhesion test.
Author: Rachel Knudsen Giunta
Publication:Polymer Engineering and Science (Refereed)
Date: August 1, 2002
Publisher: Society of Plastics Engineers, Inc.
Volume: 42 Issue: 8 Page: 1789(9)

Distributed by Thomson Gale