Rocket inhibition

Trauzl Test. 21,.4% of TNT when pure (Ref 26) for mixts see below Uses. It does not gelatinize NC (Ref 15). It improves the octane rating of diesel fuels (Ref 26). It decreases the polymerization rate of methyl methacrylate (Ref 24), and styrene (Ref 23), but. does not inhibit the reaction. A review of its use as an oxidizer in rocket propints is given in Ref 33. TeNMe gives yellow to orange colors with olefins and aromatic compds. This is used as a diagnostic test for the presence of these groups in org analysis (Refs 6, 9, 16, 17 29)... 

Uses Rubber accelerator solvent in fiber and plastic industry rocket fuels lubricants condensers to increase dielectric constant industrial solvent antioxidant nematocide softener of copolymers research chemical plasticizer in acrylonitrile polymers inhibit nitrification in soil chemical intermediate for 1,1-dimethylhydrazine. 

Inhibiting Double Base Rocket Propellants at Picatinny Arsenal. Most of the work at Pica-tinny Arsn in connection with inhibiting of solventless extruded or cast double-base propellant has been with convolute wrappings of grains or tubes with cellulose acetate. There has been a trend toward use of extruded tubes made by the casting process... 

When convolute wrapping of the long grain for the T200 Rocket (4.5" diam and 72" long) proved unsuccessful, a procedure was investigated for inhibiting with Thiocol composition developed at PA (see 6th JANAF Sol... 

All oxidizers being evaluated for use in rocket engines are carefully examined to determine their compatibility with the materials with which they will be in contact. In some cases elaborate steps are necessary to develop passivation techniques that permit extended storage of these oxidizers. One of the classical cases in recent years was the development of inhibited red fuming nitric acid (IRFNA) for use in aluminum tanks. 

Tris (2-ethyl hexyl) phosphate (TOP) Tricresyl phosphate (TCP) Tributyl phosphate Triethyl phosphate Flame retardant plasticizers for inhibition of DB rocket propellants... 

Novolac epoxy flexibilizers Improve low and high temperature characteristics of novolac epoxy resins for inhibition of composite rocket propellants [164]. 

Inert polymeric materials to be suitable for inhibition of rocket propellants must fulfill a number of requirements [279-281] and the important ones are given below ... 

The inhibited propellants after conditioning at ambient, cold (-40 °C) and hot (+60 °C) temperatures, should give successful performance during static evaluation. This is the most important test and even if a polymer meets all the requirements but fails in this test, it cannot be used for inhibition of rocket propellants [282]. 

The techniques generally used for inhibition of rocket propellants are sleeve technique, tape winding technique and casting technique and their salient features are as follows ... 

It is evident from the data that the batch-to-batch variation is within the specification limits. It is, therefore, considered a better substitute of EP-4 and is likely to substitute ERDL, EP-4 for inhibition of DB and CMDB rocket propellants in future. 

Navale, P.B., Athar, J., Diwakar, R.P., Sadakale, V.G., and Agrawal, J.P. (1999) Unsaturated polyester with melamine based additives for inhibition of DB rocket propellants. Proc. Polymer 99 (Polymers Beyond AD 2000), IIT Delhi, Jan. 12-15,1999, pp. 778-781. 

Coating of extruded rocket proplnt grains on selected surfaces by inhibiting substances, such as a mixt of Methyl- Ethyl Cellosolve) 18)Dy-namit AG, BritP 788311 (1957) CA 52, 7703 (1958) (AN based expls are coated with surface active agents, such as nitroiso-butylglycerin DNPh, Tetryl, TNT, hexa-mine,etc. Coating may either retard or promote the detonation) 19)R.H.Comyn,... 

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