What PBXN 5?
PBXN-5 is a plastic bonded explosive that is nominally 95% octahydrotetranitrotetrazine (HMX) by weight with 5% Viton-A binder. Viton-A is a commercial copolymer made of 60% vinylidine fluoride and 40% hexafluoropropylene.
How is Brisance measured?
For measuring the brisance of an explosive, the sand test or sand crushing test is a suitable method [156]. It is based on determining the amount of standard sand which is crushed by a standard mass of explosive.
What is PBX material?
A polymer-bonded explosive, also called PBX or plastic-bonded explosive, is an explosive material in which explosive powder is bound together in a matrix using small quantities (typically 5–10% by weight) of a synthetic polymer.
What is the property of low explosives?
Low Explosives: Low explosives deflagrate rather than detonate. Their reaction velocities are 2000 to less than 3000 feet per second. Black powder is a good example. These materials normally have little water resistance, are highly flammable, sensitive to a No.
What is a thermoplastic bomb?
General purpose aerial bombs are lined with a thermoplastic material prior to filling with an explosive in order to provide a barrier between the explosive and the bomb case. Roof asphalt was initially adopted as the primary bomb liner because of its low cost, ease of application and availability.
What is binder explosive?
Polymer bonded explosives (PBXs) consist of explosive components bound together by a polymeric binder. The most common binder systems in current PBXs are polyurethane based and contain plasticisers and other chemicals that alter processability, mechanical properties and chemical stability.
What is Brisance effect?
Definition of brisance : the shattering or crushing effect of an explosive measurable by the crushing of sand or the compression of a metal cylinder and dependent upon the rate of detonation and other factors.
What is the speed of an explosion?
Detonations in gases propagate with velocities that range from 5 to 7 times the speed of sound in the reactants. For hydrocarbon fuels in air, the detonation velocity can be up to 1800 m/s.
What is the full form of HMX?
HMX is a man-made, colorless liquid chemical which stands for High Melting Explosive. HMX will dissolve slightly in water. A very small amount of HMX will turn into a vapor in the air.
What does the word Brisance mean?
the shattering or crushing effect
Definition of brisance : the shattering or crushing effect of an explosive measurable by the crushing of sand or the compression of a metal cylinder and dependent upon the rate of detonation and other factors.