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Paper Title: Effect of Process Parameters and Cure Catalysis on the HTPB-IPDI Based Solid Propellant Behavior
Authors Name: CH DEVI VARA PRASAD , Srinivas babu N , Kanaka Raju , Ranganathan V , K N Ninan
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Published Paper Id: IJNRD1804011
Published In: Volume 3 Issue 4, April-2018
Abstract: Conventionally Toluene diisocyanate (TDI) and Isophorone diisocyanate (IPDI) are used as curatives for HTPB to form crosslinked urethane networks. Urethane formation is a fairly rapid reaction with TDI. Since this limits the useful pot life of the propellant, lesser reactive IPDI is more suitable in propellant formulations where a high pot life of the propellant paste is needed for processing big size grains. The aliphatic nature of IPDI makes it slow reactive, thus yielding a longer pot-life and penetrometric pot life which are the favorable factors for processing large boosters [1-3]. IPDI is also less toxic and hence used by many manufacturers. One disadvantage is that its longer cure time. In this paper, a detailed study was made on the HTPB-IPDI propellant behaviour and also a comparative study was made with HTPB-TDI propellant system to understand the viscous and mechanical behaviour of the propellant system by its process parameters and cure catalysis system for HTPB-IPDI system.
Keywords: TDI, IPDI-HTPB propellant, cure catalysis, composite solid propellant, viscosity build-up,mechanical properties, process parameters
Cite Article: "Effect of Process Parameters and Cure Catalysis on the HTPB-IPDI Based Solid Propellant Behavior", International Journal of Novel Research and Development (, ISSN:2456-4184, Vol.3, Issue 4, page no.68-72, April-2018, Available :
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