| || Energetics and Compatibility of Plasticizers in Composite Solid Propellants
Author : Muthiah, Rm;Somasundran, U.I.;Varghese, T.L.;Thomas, V.A.
Source : Defence Science Journal ; Vol:39(2) ; 1989 ; pp 147-155
Subject : 678 Composite Materials
Keywords : Polymer extender oil;Hydroxyl terminated polybutadiene
Abstract : In this paper a comparative analysis on the energetics of ester type plasticizers such as dioctyl adipate (DOA), dioctyl phthalate(TCP) and dibutyl phthalate (DBP) and hydrocarbon type plasticizers such as polybutene (PB), spindle oil, naphthenic oil, polymer extender oil (PEO) Dan poly isobutylene (PIB) and the impact of some of the plasticizers on the workability, pot life and mechanical properties of propellants based on two selected polymeric binders namely polybutadiene-acrylic acid-acrylonitrile (PBAN) polymer and hydroxyl terminated polybutadiene (HTPB) have been reported. The compatibility of all the plasticizers on HTBP binder was also studied at different concentration levels and temperatures using Brookfield viscometer and reported. The mechanism of plasticization is also reviewed.