Types of Insulating Materials
Various Types of Insulating Materials
Insulating materials are mainly used to stop the flow of heat, sound or electrical charges from any substance. In the case of electronic insulators, the substance that insulation materials are made of contains no movable electrical charges, so when voltage is applied across the insulating material, there is no flow of electric current. There are many types of insulation materials, some of which are listed below.
* Acrylic and Ceramic
Both of these materials are widely used in insulation, particularly if toughness and transparency are needed. For insulation purposes, solvent cement can be pretty useful, while ceramics are highly useful in making insulators, components and circuit boards due to their good electrical and thermal insulating properties.
* Glass
Glass as an insulation material is available in a wide variety of forms, like solid glass, fiber tapes, fiberglass sheets and mats. Glass can also be obtained in woven tubing, cloth and various composites.
* Mica
Mica is an insulation material that is useful for heat-sinking transistors or other components with electrical conductors. Since thermal conductivity is high in electrical insulation, mica sheets are often used for this purpose. Mica is also used to prevent flakes in composite tapes and sheets.
* Nylon
Nylon is an insulation material used in a variety of other materials mainly to improve weathering and stiffness. Nylon has also good resistance to high voltages, and is impact resistant as well, making it ideal for robust use.
* Polyester
Known for its extreme toughness, polyester is mostly used in film sheets and tapes for graphic arts and electronics. Polyester is also used in car capacitor insulation.
* PVC
Polyvinyl chloride or PVC is mostly used in house wiring, being one of the most common insulating materials. For tapes and tubing, irradiated PVC is used because of its heat resistant properties.
* Tapes
Various insulating materials are available in tape form, with vinyl tape being the most widely used for wiring insulation. Not only are tapes handy and convenient to use, they also contain adhesive properties that can stick to most materials.
* Foams
Foam is also considered a good insulator, as it can be used for thermal, electrical, sound and mechanical insulation purposes.
Other materials not listed here that make good insulators include silicon, laminates, rubber and many more.