Silicone Rubber Thermal Expansion Coefficient

Thermal expansion is usually expressed in one of two ways either volumetric expansion or more commonly linear expansion expressed as a coefficient.

Silicone rubber thermal expansion coefficient.

If the seal is completely confined and the gland is 100 filled the dominating force is the force of thermal expansion of the rubber. Generally linear thermal expansion is most applicable to solids. The linear thermal expansion coefficient cte is dependent on the material from which an object is made. Find linear thermal expansion coefficient α and volumetric coefficient for thermal expansion β at 20 c for rubber or for different material like brass copper concrete lead silver water and more.

This expansion is an advantage for sealing applications. Temperature expansion thermal expansion of pipes and tubes stainless steel carbon steel copper plastics and more. For example silicone may expand linearly 5 9e 4 to 7 9e 4 in in c compared to aluminum at 23 0e 6 in in c or steel at 10 8e 6 in in c. Our dialometry testing services use netzsch dil 402 pc or similar instrument.

Material properties material properties for gases fluids and solids densities specific heats viscosities and more. Abs pipes pressure ratings pressure ratings of. There are different types depending on functional groups in the structure and curing mechanisms. The coefficient of volumetric thermal expansion for all silicone rubber products is in the range of 5 9 to 7 9 x 10 4 4 c.

Untreated silicone in gel or liquid form will convert to solid after curing. These forces are generated by thermal expansion of the rubber and or swelling effect of a fluid. The coefficient of thermal expansion is defined as the change in length or volume of a material for a unit change in temperature. 2 chart 2 plastics and other non metals.

Key properties include thermal stability chemical stability electrical insulation and low toxicity. Coefficient of thermal expansion silicone has a high thermal expansion coefficient and can be used as a temperature activation method or sensor in the design. Silicones are polymers with a si o si backbone. Carbons 1 2 to 2 5 x 10 6 2 16 to 4 5 x 10 6.

The curing method can be either vulcanized or catalyzed. There have been instances where a seal has ruptured a steel gland due to expansion when heated. Main applications are flexible seals o rings etc. 2 2 4 silicone rubber sir silicone rubber sir is an elastomer composed of silicone containing silicon carbon hydrogen and oxygen in the form of a polymer.

Song in progress in rubber nanocomposites 2017. The cte employs reciprocal temperature units k 1 f 1 c 1 etc representing the length change per degree per unit length e g in in f or mm mm c. Mse supplies stands behind our promise for h igh quality products with competitive pricing and dependable technical support from phd scientists. The table at.

Thermodynamics effects of work heat and energy on systems.