Silicone sleeves have various uses in industries, medicine, and research due to their heat, cold, radiation, and flame resistance, water repellency, and electrical insulation. They are used in medical casts, catheters, and stimulation electrodes, as well as in scientific and industrial devices for chemical reactions and electrical insulation. Fire sleeving is also made of silicone and fiberglass for protection against extreme temperatures.
The silicone sleeve has a variety of industrial, mechanical and medical uses. Compound silicone is used because its properties make it safe and effective. It is heat resistant, cold resistant, radiation resistant, flame retardant, water repellent and provides electrical insulation. Additionally, this type of sleeving can be made from different types of silicone, including silicone rubbers, fluids, and resin.
In the medical field, plaster casts with silicone sheaths are used for broken bones and limb amputations. Silicone sheathed casts are beneficial because they have been found to heal patients quickly and reduce the amount of time spent in the hospital. Slit-valve medical catheters also use silicone sheaths to keep body fluids out and germs out. These types of sheaths can be formed by dipping the device into a silicone rubber compound to form a thin layer around the tubing or casting.
Medical stimulation electrodes – devices that transfer ionic currents in the body into electric currents – also use silicone sheaths. Defibrillation pads are one such type of pacing electrode. Reinforced suture sleeves also use a silicone-based sleeve to protect the lead bodies. These types of devices have silicone resin injected into the area between the lead bodies and the outer tube of each device.
In science and research, silicone sheaths are also used for some devices. Biomedical researchers use silicone sleeves to mechanically induce remodeling of blood vessel constructs in vitro. The silicone-based sheath is also used as a chamber for conducting chemical reactions. It has properties that help perform chemical reactions, such as heating with doped polysilicon and convection cooling with bulk silicon. The sleeve also allows for a secondary tube to be inserted with a chemical blend to relieve any potentially harmful or incompatible materials.
The silicone sheath is also used in the industrial field for its electrical insulation properties. Industrial products use a type that can be composed of different chemicals in addition to a silicone polymer. One such device is an electronically reproduced magnetic media coated with nitrogen-containing silicone resin. This conduit provides good electrical insulation and physical protection from the environment.
Another type of silicone sleeving is fire sleeving, which is coated with a silicone polymer and woven sheets of fiberglass. The sleeve wraps around cylindrical objects, such as fuel lines or hydraulic lines. The heat/flame resistance and insulating properties of silicone make it desirable to use as protection against extreme temperatures. These hoses are useful on aircraft fuel lines and in environments where fuel/hydraulic lines are subjected to extreme ambient temperatures.
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