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Internal insulator is an important part of the solid rocket motor, because it protects the motor case, preventing the case from reaching high temperatures that endanger the structure of the rocket motor. This work presented the evaluation results of the heat shielding properties of the insulator materials based on EPDM with a magnesium hydrosilicate filler. The insulator has high heat resistance, and low thermal conductivity, and protects the motor case well during the firing test.

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Evaluation of the Heat-Resistant Properties of an EPDM-Based Insulator in Solid Rocket Motors

  • 会议论文

  • 发表日期：

    2026年

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  • Hieu Q Pham,
  • Dao K Pham,
  • Dong T Pham,
  • A. N. Gaidadin

摘要

Internal insulator is an important part of the solid rocket motor, because it protects the motor case, preventing the case from reaching high temperatures that endanger the structure of the rocket motor. This work presented the evaluation results of the heat shielding properties of the insulator materials based on EPDM with a magnesium hydrosilicate filler. The insulator has high heat resistance, and low thermal conductivity, and protects the motor case well during the firing test.