Silicone Modified Resins for Graphite Fiber Laminates.
Abstract
When graphite fiber composites are burned, the liberated fibers may settle on electrical apparatus and cause severe damage. This problem can be minimized by bonding the fibers with silicone modified laminating resins that leave a siliceous residual char when they are burned. During the second year of this program, 23 additional silicone modified resins have been synthesized and evaluated for this application. Included were siloxane-silazane-epoxies, siloxane- imide-epoxies, and unsaturated siloxanes. Further evaluation of resins from the first year was also done. Neat resins were judged in terms of Si content, homogeneity, hardness, char formation, and thermal stability. Char formation was estimated by thermogravimetry to 1,000 deg C in air and in N2. Thermal stability was evaluated by isothermal weight loss measurements for 200 hrs in air at 200 deg C. jg p4
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 18, 1980
- Accession Number
- ADA303132
Entities
People
- G. M. Bower
- L. W. Frost