Thermal Hazards Studies for the Azidation Process in the Preparation of Tetra Functional Glycidylazide Polymer (t-GAP) Using a Thermal Screening Unit (TSU)

• Autorzy: Adak, Prasanta Kumar , Ghosh, Mrinal , Meena, Ashish Kumar , Jain, Mukesh , Banerjee, Shaibal
• Języki publikacji: EN

Abstrakty

EN

Glycidylazide polymer (GAP) tetraol or tetra functional GAP (t-GAP) is a potential energetic binder, capable of exhibiting superior mechanical properties and better curing behaviour for application in high energy propellants. t-GAP is conventionally prepared through azidation of tetra functional poly-epichlorohydrin (t-PECH). Azidation reactions using a metal azide are known to be sensitive to temperature. The present study was aimed at a systematic evaluation of the safe temperature limit for the preparation of t-GAP and to derive optimized reaction conditions using a thermal screening unit (TSU), through both dynamic and isothermal heating experiments. The thermal hazard studies suggested that the azidation reaction is fairly stable at temperatures above 100 °C as it did not exhibit any abrupt rise in reaction temperature or pressure. The process was validated using laboratory scale batches and completion of the reaction was verified using FTIR spectroscopy.

Słowa kluczowe

EN

energetic binder; hazard; optimization; t-GAP; thermal screening; composite solid propellant

• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2024
• Tom: Vol. 21, no. 3
• Strony: 282--297
• Opis fizyczny: Bibliogr. 35 poz., rys., tab., wykr.

Twórcy

autor

Adak, Prasanta Kumar

• High Energy Materials Research Laboratory, DRDO, Pune -411 021, India,

autor

Ghosh, Mrinal

• High Energy Materials Research Laboratory, DRDO, Pune -411 021, India

autor

Meena, Ashish Kumar

• High Energy Materials Research Laboratory, DRDO, Pune -411 021, India

autor

Jain, Mukesh

• High Energy Materials Research Laboratory, DRDO, Pune -411 021, India

autor

Banerjee, Shaibal

• Defence Institute of Advanced Technology, Pune -411 025, India

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Identyfikatory

DOI

10.22211/cejem/193808