Kinetic Study on Polyphenylene Oxide,
Abstract
The Arrhenius activation energy and reaction rate constants for PPO, both unfilled and filled with 30-percent glass fiber, were determined by isothermal and by temperature programmed TGA methods and found to be 45.5, 38.9, 43.1, and 35.6 kcal, respectively. The activation energy as determined by TGA METHODS IS 2 TO 3 KCAL LOWER THAN THAT DETERMINED BY THE MORE ACCURATE BUT TEDIOUS ISOTHERMAL METHODS. This is in accordance with comparable TGA data published in the literature. The Arrhenius equation was utilized to predict the thermal loss of glass-filled PPO at elevated temperatures. At maximum temperature that the nose cone of a projectile would see in flight, the loss could be as high as 90 percent on 0.5 sec. (Author, modified-PL)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1970
- Accession Number
- AD0715358
Entities
People
- Rainer J. Katzenstein
Organizations
- Harry Diamond Laboratories