In the aerospace field, Carbon/Cork composites have been used for rocket propulsion systems as a light weight structural component with a high bending stiffness and high thermal insulation properties. For the fabrication of a carbon composite with a heat insulation cork part, the bonding properties between them are very important to determine the service life of the Carbon/Cork composite structure. In this study, the changes in the interfacial adhesion and mechanical properties of Carbon/Cork composites under accelerated aging conditions were investigated. The accelerated aging experiments were performed with different temperatures and humidity conditions. The properties of the aged Carbon/Cork composites were evaluated mainly with the interfacial strength. Finally, the lifetime prediction of the Carbon/Cork composites was performed with the long-term property data under accelerated conditions.

Abstract
 1. Introduction
 2. Experimental
  2.1. Preparation of samples
  2.2. Adhesion test of the Carbon/Cork composites
  2.3. Accelerated aging test
  2.4. Aging evaluation methodology
  2.5. Morphology observation
 3. Results and Discussion
  3.1. Post-curing effect
  3.2. Accelerated aging results
 4. Conclusions
 References

• Hyung Sik Lee(1st Directorate, the 4th R&D Institute, Agency for Defense Development)
• Sang Ki Chung(1st Directorate, the 4th R&D Institute, Agency for Defense Development)
• Hyung Gean Kim(1st Directorate, the 4th R&D Institute, Agency for Defense Development)
• Byeong Yeol Park(1st Directorate, the 4th R&D Institute, Agency for Defense Development)
• Jong Sung Won(Department of Organic Materials Engineering, Chungnam National University)
• Seung Goo Lee(Department of Organic Materials Engineering, Chungnam National University) Corresponding Author