Chloe Zhang
Plastic explosives are a type of soft, hand-mouldable explosive material. They are often made from PETN and RDX and are commonly used in military and civilian applications. Plastic explosives are resistant to accidental detonation and can be easily formed into shapes that are ideal for explosive demolition. They are more expensive than other materials and are not typically used for ordinary blasting. The most common plastic explosives are C-4 and Semtex.
| Characteristics | Values |
|---|---|
| Definition | Plastic explosive is a soft and hand-moldable solid form of explosive material. |
| Other Names | Putty explosives, Composition C, Nobel 808, C-4, Semtex |
| Composition | RDX, plastic binder, plasticizer, marker or odorizing taggant chemical, mineral oil, polyisobutylene, pentaerythrite dioleate, lithium grease, etc. |
| Texture | Similar to modelling clay |
| Uses | Military, commercial, shock hardening high manganese percentage steel, reactive armour in tanks, explosive demolition, sabotage missions, munition propellants, construction, demolition, mining, etc. |
| Advantages | Can be moulded into any desired shape, high cutting ability, highly stable to handling, resistant to accidental detonation |
| Disadvantages | Toxicity, expensive |
| Detection | Difficult to detect by gas analytical methods due to its low vapor pressure |
Explore related products
What You'll Learn
Plastic explosives are soft and hand-mouldable
The softness of plastic explosives is due to their formulation with a binder material, which makes them malleable or flexible at normal room temperature. They have a low vapour pressure, making them difficult to detect by gas analytical methods. This is one reason why they are commonly used by terrorists.
The first plastic explosive was gelignite, invented by Alfred Nobel in 1875. During World War II, the British used a plastic explosive called Composition C, which was 88.3% RDX and 11.7% non-oily, non-explosive plasticizer. This was followed by Composition C2, which had a wider temperature range at which it remained plastic, and then Composition C3, which was replaced by C4 due to its brittleness in cold weather.
C4, or Composition C-4, is a common variety of plastic explosive known for its stability and insensitivity to most physical shocks. It cannot be detonated by a gunshot or by dropping it onto a hard surface and will not explode when set on fire or exposed to microwaves. It has a texture similar to modelling clay and can be moulded into any desired shape. C4 is composed of explosives, plastic binder, plasticizer, and usually a marker or odorizing taggant chemical.
Spray-Painting Milk Crates: A Fun DIY Project
You may want to see also
Explore related products
They are resistant to accidental detonation
Plastic explosives are resistant to accidental detonation. They are highly stable to handling and can only be detonated by a shockwave, such as when a detonator inserted into it is fired. For instance, C-4 cannot be detonated by a gunshot or by dropping it onto a hard surface. It does not explode when set on fire or exposed to microwaves.
C-4 is a common variety of the plastic explosive family known as Composition C, which uses RDX as its explosive agent. C-4 is composed of explosives, plastic binder, plasticizer to make it malleable, and usually a marker or odorizing taggant chemical. It has a texture similar to modelling clay and can be molded into any desired shape.
The first plastic explosive was gelignite, invented by Alfred Nobel in 1875. One of the simplest plastic explosives was Nobel's Explosive No. 808, of the gelignite type, also known as Nobel 808. It was extensively used by the British Special Operations Executive (SOE) during World War II for sabotage missions.
Plastic explosives are especially suited for explosive demolition of obstacles and fortifications by engineers and combat engineers as they can be easily formed into the best shapes for cutting structural members and have a high enough velocity of detonation and density for metal-cutting work. They are used in both military and civilian applications.
Capping Plastic ABS Lines: The Ultimate Guide
You may want to see also
Explore related products
They are more expensive than other explosives
Plastic explosives are a type of explosive material that is soft and hand-mouldable, often made from PETN and RDX. They are commonly used in military and civilian applications and are particularly effective in explosive demolition. Due to their specialised nature and the specific materials used, they tend to be significantly more expensive than other explosive materials that perform just as well.
The high cost of plastic explosives can be attributed to several factors. Firstly, the materials used in their composition, such as RDX, plastic binders, and plasticisers, can be costly to produce or acquire. RDX, or "Research Department Explosive", is a powerful explosive nitroamine that serves as the primary explosive agent in plastic explosives like C-4. Plastic binders and plasticisers, on the other hand, are used to increase the plasticity and flexibility of the explosive material, allowing it to be easily moulded by hand. These components can also add to the overall expense.
Another factor contributing to the higher cost of plastic explosives is their specialised manufacturing process. Producing plastic explosives requires advanced chemical engineering techniques and quality control measures to ensure the final product's effectiveness and stability. The manufacturing process may involve complex procedures, such as combining ingredients with binders dissolved in a solvent, which can increase production costs.
In addition, plastic explosives often require specialised storage and handling procedures. Due to their sensitive nature, they may need to be stored in controlled environments with specific temperature and humidity conditions to maintain their stability and effectiveness over time. This specialised storage can add to the overall expense of plastic explosives.
It is important to note that the cost of explosives can vary depending on various factors, including the manufacturer, the quantity produced, and market demand. However, plastic explosives, due to their specialised nature and the cost of their components, tend to be priced higher than other explosive alternatives.
Despite the higher cost, plastic explosives offer unique advantages that make them valuable in certain applications. They are highly stable and resistant to accidental detonation, making them safer to handle and transport. Additionally, their malleable nature allows them to be easily moulded into desired shapes, making them versatile for various demolition and engineering tasks.
JB Weld Plastic Bonder: Is It Conductive?
You may want to see also
Explore related products
Plastic explosives are used in military and civilian applications
Plastic explosives are soft and hand-mouldable solid explosives, also known as putty explosives. They are used in military and civilian applications due to their stability and malleability.
In military applications, plastic explosives are used for explosive demolition of obstacles and fortifications. They can be easily formed into ideal shapes for cutting through structural members, and have a high enough velocity of detonation and density for metal-cutting work. For instance, during World War II, the British used a plastic explosive called Composition C for demolition charges. This was replaced by Composition C2, which had a wider temperature range at which it remained plastic, and then by Composition C3, which had improved safety during usage and storage. The latest in the series, C4, is very stable and insensitive to most physical shocks. It is used in military applications due to its versatility in various climates and conditions. C4 is also used to fuel rations, although this is discouraged due to the production of poisonous fumes.
In civilian applications, plastic explosives are used for shock-hardening high-manganese percentage steel, a material used for train rail components and earth-digging implements. They are also used in reactive armour in tanks, where they are sandwiched between two plates of steel. When an incoming high-explosive shaped charge anti-tank round pierces the outer steel plate, the plastic explosive detonates, disrupting the energy from the incoming round and shielding the tank.
In recent years, advancements in plastic explosives have led to enhanced capabilities and safety features. These include controlled detonation mechanisms, eco-friendliness, and reduced detectability, which offers a tactical advantage in covert operations.
Marlin XT-22: Plastic Trigger Guard?
You may want to see also
Explore related products
C-4 is a common variety of plastic explosive
C-4, also known as Composition C-4, is a plastic explosive that falls under the Composition C family of chemical explosives. It was developed by the British during World War II and later redeveloped as Composition C when introduced to the US. C-4 is composed of explosives, plastic binder, plasticizer, and usually a marker or odorizing taggant chemical. The plasticizer makes C-4 malleable, giving it a texture similar to modelling clay, which can be moulded into any desired shape. This mouldability offers a major advantage as it allows for the direction of the resulting explosion to be changed.
C-4 is a stable explosive that is relatively insensitive and can only be detonated by a shockwave from a detonator or blasting cap. It is composed of 91% RDX ("Research Department Explosive", an explosive nitroamine), 5.3% dioctyl sebacate (DOS) or dioctyl adipate (DOA) as the plasticizer, 2.1% polyisobutylene (PIB, a synthetic rubber) as the binder, and 1.6% mineral oil, also known as "process oil". Military-grade C-4 is commonly packaged as the M112 demolition block, which is a rectangular block measuring about 2 by 1.5 inches (51 mm x 38 mm) and 11 inches (280 mm) long, weighing 1.25 lb (570 g).
C-4 has a variety of applications, including military and commercial use. It has been used by soldiers as a fuel for heating rations and by terrorist groups worldwide in acts of terrorism and insurgency. C-4 is also used in the construction of reactive armour in tanks, where it helps protect the tank by disrupting the energy from incoming rounds.
How Oil Refining Gave Birth to Plastic
You may want to see also
Frequently asked questions
Plastic explosives are soft and hand-mouldable solid forms of explosive material. They are often made from PETN and RDX and are commonly used in both military and civilian applications.
Some common plastic explosives include Semtex, C-4, and Nobel 808.
Plastic explosives are highly stable and resistant to accidental detonation. They are also easily moulded into different shapes, making them effective for explosive demolition.
Plastic explosives are used for shock-hardening high manganese percentage steel, which is used for train rail components and earth-digging implements. They are also used in reactive tank armour and for explosive demolition in military contexts.
Yes, plastic explosives are highly dangerous and toxic. Ingesting plastic explosives can lead to seizures, nausea, vomiting, and other severe symptoms.
