Silicone rubber is a polymer that has a 'backbone of' silicon oxygen linkages, the same bond that is found in quartz, glass and sand. Normally, heat is required to vulcanise (set) the silicone rubber, this is normally carried out in a two stage process at the point of manufacture into the desired shape, and then in a prolonged post-cure process. General Name, Symbol, Number silicon, Si, 14 Chemical series metalloids Group, Period, Block 14, 3, p Appearance dark gray, bluish tinge Atomic mass 28. ... General Name, Symbol, Number oxygen, O, 8 Chemical series Nonmetals, chalcogens Group, Period, Block 16, 2, p Appearance colorless (gas) very pale blue (liquid) Atomic mass 15. ... Quartz is amongst one of the most common minerals in the Earths continental crust. ... Glass can be made transparent and flat, or into other shapes and colors as shown in this ball from the Verrerie of Brehat in Brittany. ... Patterns in the sand Sand is an example of a class of materials called granular matter. ... Vulcanization, or curing, of rubber, is a chemical process in which individual polymer molecules are linked to other polymer molecules by atomic bridges. ...

Properties

Silicone rubber offers excellent resistance to extreme temperatures, being able to operate normally from minus 100°C to plus 500°C. In such conditions the tensile strength, elongation, tear strength and compression set can be far superior to conventional rubbers.

Silicone rubber has excellent high temperature properties. Organic rubber has a carbon to carbon backbone. This can leave them susceptible to ozone, UV, heat and other aging factors that silicone rubber can withstand well. This is why it is the material of choice in many extreme environments. Rubber is an elastic hydrocarbon polymer which occurs as a milky emulsion (known as latex) in the sap of several varieties of plants. ... General Name, Symbol, Number carbon, C, 6 Chemical series nonmetals Group, Period, Block 14, 2, p Appearance black (graphite) colorless (diamond) Atomic mass 12. ... For other uses, see Ozone (disambiguation). ... Note: Ultraviolet is also the name of a 1998 UK television miniseries about vampires. ...

Specialist grades

There are also many specialist grades of silicone rubber that offer the following qualities: Steam resistance, metal detectable, glow in the dark, electrically conductive, chemical/oil/acid/gas resistance, low smoke emission and flame retardent In physical chemistry, and in engineering, steam refers to vaporized water. ... En [ [ ciencia ] ] y [ [ ingeniería ] ], los conductores son los materiales de los cuales contenga las cargas movibles [ [ electricidad ] ]. Cuando una diferencia potencial eléctrica se impresiona a través de puntos separados en un conductor, las cargas móviles dentro del conductor se fuerzan para moverse, y una corriente el...

Applications

Once milled and coloured the silicone rubber can be extruded into tubes, strips, solid cord or custom profiles within the size restrictions of the manufacturer. Cord can be joined to make "O" Rings and extruded profiles can also be joined to make up seals. Silicone Rubber can also be moulded into custom shapes and designs.

External links

• Product Data
• Silicone Rubber and Elastomerics materials at Stockwell Elastomerics