There are several important factors in the production of silicone products

Superior performance, coupled with silica gel is not a petroleum product, does not rely on the increasing shortage of petroleum resources, so that silicone products to become a substitute for similar plastic products has been the trend of the times, while silicone products can be applied to a lot of plastic products can not do the use of the field, such as baby pacifiers, human organs, etc., the application prospect is very broad. What are the most important factors in the production of silicone products?

First, elongation

Usually refers to the “limiting rupture elongation” or the percentage increase relative to the original length when the sample breaks. The general elongation of hot-sulfur solid silicone rubber ranges from 90 to 1120%. The general elongation of fluorosilicone rubber is between 159 and 699%. Liquid silicone rubber generally has an elongation of between 220 and 900%. Different processing methods and hardener choices can greatly change their elongation. The elongation of silicone rubber has a lot to do with temperature.

Second, tensile strength

Tensile strength is the force required per range unit when causing a sample of rubber material to tear. The tensile strength of hot-sulfur solid silicone rubber ranges from 4.0-12.5MPa. The tensile strength of fluorosilicone rubber ranges from 8.7-12.1MPa. The tensile strength of liquid silicone rubber ranges from 3.6-11.0MPa.

Third, viscosity

Explanation of scientific and technical terms: the volume characteristics of liquids, quasi-liquids or solid substances that resist flow, that is, the friction between molecules or the internal resistance of the flow presented between molecules when flowing by external forces, usually the viscosity or hardness is proportional to each other.

Fourth, hardness

The ability of a material to resist the pressure of hard objects on its surface is called hardness. Silicone rubber has a Shore hardness range of 10 to 80, which gives the design full freedom to choose the desired hardness to achieve specific functions. Mixing polymer substrates, fillers and additives in different proportions allows for a variety of intermediate hardness values. Similarly, the time and temperature of heat curing can also change the hardness without destroying other physical characteristics.

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