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Dr. Peiluo SHI

TOPIC: M55J Carbon Fiber/Cyanate Ester Composites’ Properties and Application

Authors: SHI Peiluo, BAI Xuelian, FU Pingjun, LING Hui, JIANG Wenge from Aerospace Research Institute of Materials and Processing Technology, Beijing 100076, China

Presented by Dr. Peiluo SHI, Senior Engineer with the Aerospace Research Institute of Materials and Processing Technology, Beijing, China

Abstract

High modulus carbon fiber/cyanate ester composites are new materials increasingly used in aerospace structures. In this study, M55J/cyanate ester hot-melt prepregs and laminates are prepared and a M55J/cyanate ester telescope is produced. Laminates’ moisture absorption, out-gassing, mechanical and thermal properties are measured and compared with T700/epoxy laminates. Telescope’s coefficient of thermal expansion is measured.

Results show that M55J/cyanate ester laminates’ total mass loss (TML) is as low as 0.07% by out-gassing measurement. Cyanate ester systems absorb significantly less moisture (one third) than epoxy systems. Coefficients of thermal expansion are near zero (<1×10-6/K) in both X and Y directions for M55J/cyanate ester laminates, as well as for the longitudinal direction of the telescope. All these data support the conclusion that M55J/cyanate ester system is an excellent candidate for dimensionally stable aerospace structures.

Keywords: M55J, Cyanate ester, Aerospace structure

Presenter’s resume

Born in China in 1986, Peiluo SHI is currently a senior engineer at Aerospace Research Institute of Materials and Processing Technology, Beijing, China. He received a Ph.D. degree in Material Science from the Université Pierre et Marie Curie (France) in December 2013.