Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Investigation on Rheological and Mechanical Properties of Propellant with Chemical Structures of HTPB Binder

HTPB 바인더의 화학적 구조에 따른 추진제의 유변학적, 기계적 특성 연구

  • Received : 2015.12.15
  • Accepted : 2016.10.31
  • Published : 2017.02.01
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Abstract

It is observed that chemical characteristics of HTPB(Hydroxyl Terminated Polybutadiene) binder such as OH index, molecular weight and functionality and so on, can be different with synthetic batch, which can affect curing reaction of binder in itself or propellant. Finally this reaction can also affect mechanical properties of propellant. And the results suggest that proper degree of curing reaction is necessary to obtain better mechanical properties of propellant.

추진제의 주 바인더로 사용하고 있는 폴리부타디엔 계열인 HTPB (Hydroxyl Terminated Polybutadiene)는 합성 뱃취에 따라 분자량 및 관능기수 등 바인더 특성이 달랐으며 이는 바인더 자체와 추진제의 경화 반응 속도에 영향을 미치는 것으로 분석되었다. 최종적으로 이러한 추진제의 경화 반응 속도가 추진제 물성에 영향을 미치며, 우수한 물성의 추진제를 제조하기 위해서는 적절한 수준의 바인더의 경화 반응이 필요한 것으로 분석되었다.

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References

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