Find out which is the most effective insulating material out of a range of different materials.

... G.C.S.E science coursework Coursework: Insulator Aim: My aim is to find out which is the most effective insulating material out of a range of different materials. Introduction The choice of an insulation material is usually made depending on the application. Polyethylene and polystyrene are usually used in high-frequency applications. Insulators must also be selected according to the maximum temperature they will encounter. I.E. Teflon is used in the high-temperature range of 175° to 230° C. Other materials may need to be used in awkward mechanical or chemical conditions. Nylon has an excellent abrasion resistance, also neoprene, silicone rubber, epoxy polyesters, and polyurethane's usually provide protection against chemicals and moisture. Thermal insulating materials are used to reduce the flow of heat between hot and cold regions. The sheathing often placed around steam and hot-water pipes, for instance, reduces heat loss to the surroundings, and insulation placed in the walls of a refrigerator reduces

want to read more? →