Table 1 The main components of HTPB propellant.

From: Fatigue failure of prefabricated crack HTPB(hydroxyl-terminated polybutadiene) propellant under strain control

Components

Function

Proportion

Form

HTPB

Adhesive

11.3%

Liquid

Ammonium perchlorate

Solid oxidizer

68%

Solid

Aluminum powder

Solid oxidizer

17%

Solid

2, 4-toluene diisocyanate

Curing agent

0.5%

Liquid

Plasticizer, stabilizer, combustion plasticizer, etc.

Other

3.2%

Solid\Liquid

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