High And Low Explosives And Addictives Flashcards
Definition of High explosive?
High velocity of detonation initiates decomposition almost immediately.
Types of low explosives?
Gunpowder
Pyrotechnics
Propellants
Definition of Low Explosive?
Low velocity of detonation, which decomposes rapidly through combustion.
Detonation definition?
Extremely rapid chemical change with the evolution of heats and gases.
Main types of HE
Composite Explosive CE
TR1
RDX
PETN
PICRIC ACID
COMP B (RDX 59.5 TNT 39.5 WAX 1)
Special hazards related to LE/HE
Dust
Absorption
Fumes
Sensitivity functions by blow or?
Friction
5 Purposes of additives
Increase sensitivity
Decrease sensitivity
Improve stability
Impove moldability
Icrease blast effects
Phlegmatizing is a term to describe what?
To stabilise or desensitise.
Water wax oil alcohol.
What 4 things do you use to desensitise and stabilise with?
Water wax oil alcohol
What does adding sensitisers do?
Increases sensitivity by lowering its resistance to shock and friction.
4 ways sensitisers are added?
Hard components
Mixtures or topping crystalline Explosive
Granulating
More sensitive explosive to a less sensitive material
Factors affecting sensitivity
Increase with temperature
Explosive is required to be desensitised for munitions
Polymer used for insensitive munitions
3 desensitisers, and what does it do?
Wax
Tnt
Aluminium
Increased insensitivity.
Aluminium does what?
Increases blast effect
Cool fact: Both desensitise and a sensitiser
Settling out can be prevented by what two stabilisers
Carbon black
Lecithin (soya bean)
Fun fact: prevents formations of RDX cystals
4 types of plasticisers?
Non energetic
Energetic
Non reactive
Reactive
Plasticisers do what?
Improve suitability for use as it provides moldability
Improved flexibility
PE4 (PLASTIC<- explosive) is made up of???
RDX 88 PLASTICISERS 12
2 types of taggants
Identification taggants
Detection taggants
Additives of HE
Sensitisers
De sensitisers
Aluminium
Stabilisers
Plasticisers
Taggants
