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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2016, Vol. 37 ›› Issue (11): 3520-3527.doi: 10.7527/S1000-6893.2015.0362

• Material Engineering and Mechanical Manufacturing • Previous Articles     Next Articles

Properties of modified cyanate resin and its composites applied to space optical structure

TIAN Wenping, XIAO Jun, LI Jinhuan, XU Ting, LIU Ting   

  1. College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2015-10-22 Revised:2015-12-29 Online:2016-11-15 Published:2016-01-06
  • Supported by:

    National Basic Research Program of China (2014CB046501); Priority Academic Program Development of Jiangsu Higher Eduation Institutions

Abstract:

On the background of space optical structure application, the curing characteristic, humidity resistance, mechanical performance and processing of the low temperature curing cyanate resin are researched. The mechanical properties of cyanate resin/carbon fiber HS40 composites are also studied. The results showed that the cyanate resin has excellent curing properties by decreasing the initial curing temperature by 97.4℃ (initial curing temperature is 101.2℃). Tensile properties and flexural properties are also improved. Saturated water absorption rate of the cyanate ester is about 1.3% which is less than those of the bismaleimide resin (4%) and the epoxy resin (5.8%) significantly. The cyanate resin is also suitable to prepare prepreg by hot-melt methods because of its wonderful processing property. HS40/cyanate resin composites made by hot-melt method has excellent mechanical behavior. The tensile strength and modulus are 2 244.5 MPa and 248.0 GPa, respectively.

Key words: cyanate resin, space optical structure, curing properties, mechanical properties, resin matrix composites

CLC Number: