Silicone rubber products are very common in our production and life, and the shadow of silicone rubber products can be seen everywhere, from industrial production to small objects in life.Do you know what are the parameters of silicone rubber products?Today, Xinjia will show you about it.

    One, viscosity.

    The volumetric property of liquid, quasi-liquid or quasi-solid substance against flow, that is, the internal friction between molecules or the resistance within the flow when it is acted on by external forces. In general, viscosity is directly proportional to hardness.

    Two, hardness.

    The ability of a material to locally resist hard objects being pressed into its surface is called hardness.Silicone rubber has a Shore hardness range of 10 to 80, which gives designers the freedom to choose the required hardness to achieve a specific function.A variety of intermediate hardness values can be achieved by mixing polymer substrates, fillers and additives in varying proportions.Likewise, the time and temperature of heating and curing can also change the hardness without damaging other physical characteristics.

    Thirdly, tensile strength.

    Tensile strength is the force required on each range unit to cause a sample of rubber material to tear.The tensile strength of hot sulfurized 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.

    Fourth, tear strength.

    Resistance to incisional or notched expansion when applied to a notched sample.Even when cut and subjected to extremely high torsional stresses, the hot sulphurized solid silicon does not tear.The tear strength of hot sulfurized solid silicone rubber ranges from 9 to 55 kN/m.The tearing strength of fluorosilicone rubber ranges from 17.5 kN/m to 46.4kN /m.Liquid silicone rubber tear strength range between 11.5-52 kN/m.

    Five, elongation.

    It is usually referred to as "ultimate rupture elongation" or the percentage increase relative to the original length when the sample breaks.The general elongation range of hot sulfide solid silicone rubber is between 90 and 1120%.The general elongation of fluorosilicone rubber is between 159 and 699%.The general elongation of liquid silicone rubber is between 220 and 900%.Different processing methods and the choice of hardener can greatly change the elongation.The elongation of silicone rubber is closely related to temperature.

    Seven, operation time.

    Operation time is calculated from the moment the colloid is added to the vulcanizing agent.In fact, there is no complete boundary between this operation time and the curing time. The colloid has been vulcanized from the moment the curing agent is added. This operation time means that the curing reaction of the product for 30 minutes can not affect the quality of the finished product.Therefore, the more time saved in the process of product operation, the better for the finished product.

    Eight, curing time.

    Some places would say cure time.That is to say, after such a long time, the vulcanization reaction of silica gel is basically over.This is basically finished which means the product is ready to use, but there's actually a very small amount of curing that's not finished yet.So products made from silicone rubber, such as silicone molds, usually sit for a while before being put into use.

    Through the above introduction, silicone rubber products have what parameters have been understood, then tell me what you have silicone rubber products.If you are a silicone rubber product manufacturer, our new best can also provide you with liquid silicone raw materials, you are welcome to understand the consultation.