Silicone rubber material for office automation IOTA151-30, 40, 50
AB Liquid Silicone rubber foam IOTA-663
Silicones are examples of what chemists call polymers. Basically, a polymer is a large molecule made up of many smaller molecules that are linked together. At the molecular level, silicones consist of long, repeating chains of atoms. In this molecular characteristic, sili-cones resemble plastics and rubber.
Silicone molecules have a chain composed of alternate silicon and oxygen atoms. Each silicon atom bears two organic groups as sub-stituents, while the oxygen atoms serve to link the silicon atoms into a chain. The silicon-oxygen backbone of the silicones is responsible for their unique and useful properties, such as the ability of a silicone oil to remain liquid over an extremely broad temperature range and to resist oxidative and thermal breakdown at high temperatures.
A fundamental scientific consideration with silicone, as with any polymer, is to obtain the desired physical and chemical properties in a product by closely controlling its chemical structure and molecular weight. Oily silicones with thousands of alternating silicon and oxygen atoms have been prepared. The average length of the molecular chain determines the flow characteristics (viscosity) of the oil. In samples with very long chains, rubber-like elasticity can be achieved by cross-linking the silicone chains in a controlled manner and adding a filler such as silica. High degrees of cross-linking could produce a hard, intractable material instead of rubber.
The action of water on the compounds produced from Rochow’s direct synthesis is a rapid method of obtaining silicones, but does not provide much control of the molecular weight. Further development work at GE and at the Dow-Corning company showed that the best procedure for controlled formation of silicone polymers involved treating the crude silicones with acid to produce a mixture
High transparent liquid silicone rubber LSR IOTA 6300
We offer a variety of types of synthetic rubber including: Neoprene, Nitrile, Silicone, EPDM, SBR, and thermoplastic materials like Santoprene. Each synthetic rubber offers a unique characteristic and has been developed by industry for specific types of use. For example, silicones, as well as other synthetic rubber products, excel in temperature extremes, being able to operate normally from a range of -100° C to +300° C. Synthetic rubber material offers superior properties such as elongation, tear strength, compression set, fire resistance and, in some cases, tensile strength that are superior to that of natural rubber products.