Silicone Rubber Thermal Expansion Coefficient

Silicones are polymers with a si o si backbone.

Silicone rubber thermal expansion coefficient.

The linear thermal expansion coefficient cte is dependent on the material from which an object is made. Thermal expansion is usually expressed in one of two ways either volumetric expansion or more commonly linear expansion expressed as a coefficient. Carbons 1 2 to 2 5 x 10 6 2 16 to 4 5 x 10 6. Abs pipes pressure ratings pressure ratings of.

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. The overall coefficient is the linear thermal expansion in per degree. These forces are generated by thermal expansion of the rubber and or swelling effect of a fluid. 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.

Silicone rubber 190 0 x 10 6 342 0 x 10 6 mech. The coefficient of thermal expansion is defined as the change in length or volume of a material for a unit change in temperature. 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. Temperature expansion thermal expansion of pipes and tubes stainless steel carbon steel copper plastics and more.

Thermodynamics effects of work heat and energy on systems. There have been instances where a seal has ruptured a steel gland due to expansion when heated. Song in progress in rubber nanocomposites 2017. If the seal is completely confined and the gland is 100 filled the dominating force is the force of thermal expansion of the rubber.

This expansion is an advantage for sealing applications. There are different types depending on functional groups in the structure and curing mechanisms. Untreated silicone in gel or liquid form will convert to solid after curing. Mse supplies stands behind our promise for h igh quality products with competitive pricing and dependable technical support from phd scientists.

Key properties include thermal stability chemical stability electrical insulation and low toxicity. The table at. 2 chart 2 plastics and other non metals. 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.

Our dialometry testing services use netzsch dil 402 pc or similar instrument. 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. 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. Choose professional dilatometry and thermal expansion coefficient cte testing services from mse analytical services.

Material properties material properties for gases fluids and solids densities specific heats viscosities and more.