Abstract

AbstractThis study was conducted to improve the adhesion strength between a propellant, liner, and heat‐resistant material. As the drying time of the heat‐resistant material increased, the adhesion strength between the propellant, liner, and heat‐resistant material improved. Further, the surface of the heat‐resistant material was subjected to buffing treatment to improve the adhesion strength. In addition, as the thickness of the heat‐resistant material increased, the adhesion strength degraded. Moreover, the adhesion strength was improved by increasing the thickness of the liner on the heat‐resistant material. Besides, the adhesion strength slightly reduced with an increase in the plasticizer content. The liner curing time was an important factor affecting the adhesion strength, and an optimum liner curing time was obtained. In this study, the adhesion strength was improved by applying a barrier coat between the heat‐resistant material and liner. The adhesion was further improved when the heat‐resistant material was buffed.

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