Si 363 is a bifunctional organosilane

chemical A chemical substance is a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., w ...

used in the reinforcement of

rubber Rubber, also called India rubber, latex, Amazonian rubber, ''caucho'', or ''caoutchouc'', as initially produced, consists of polymers of the organic compound isoprene, with minor impurities of other organic compounds. Thailand, Malaysia, an ...

articles, especially

tire A tire (American English) or tyre (British English) is a ring-shaped component that surrounds a wheel's rim to transfer a vehicle's load from the axle through the wheel to the ground and to provide traction on the surface over which t ...

s. SI363 is the trade name of a

silane Silane is an inorganic compound with chemical formula, . It is a colourless, pyrophoric, toxic gas with a sharp, repulsive smell, somewhat similar to that of acetic acid. Silane is of practical interest as a precursor to elemental silicon. Sila ...

bonding agent in the trialkoxymercaptoalkyl-silane class and of formula SH(CH₂)H₃Si(OCHH₂CHH₃)(O(CHH₂CHH₂O)H₅(CHH₂)H₁₂CHH₃)H₂. When applied to tires, Si 363 reduces rolling resistance, thus leading to increased fuel economy. Both alkoxsilicon and sulfur entities are present within its

molecular structure Molecular geometry is the three-dimensional arrangement of the atoms that constitute a molecule. It includes the general shape of the molecule as well as bond lengths, bond angles, torsional angles and any other geometrical parameters that deter ...

References

Rubber {{Material-stub