Silica gel product silica gel is a porous material with different particle sizes, which is dehydrated by silica gel. It has an open porous structure and can absorb many substances. It is a good desiccant, adsorbent and catalyst carrier. The adsorption of silica gel is mainly physical adsorption, which can be regenerated and reused.
First, viscosity. The volume characteristic of anti flow of pseudo liquid or pseudo solid material is the internal friction or internal resistance between molecules when flowing under the action of external force Generally, viscosity is directly proportional to hardness.
Second, hardness. The ability of a material to partially resist hard material pressing into its surface is called hardness. Silicone rubber has a 10 to 80 shore hardness range, which gives designers full freedom to choose the required hardness to best achieve specific functions.
Third, tensile strength. Tensile strength refers to the force required on each range unit to cause tearing of a rubber material sample.
Fourth, tear strength. The resistance to apply force to a notched specimen to impede the expansion of the notch or notch. Even if it is placed under extremely high torsional stress after cutting, the hot vulcanized solid silicone rubber can not be torn.
Fifth, elongation. It refers to the "ultimate rupture elongation" or the percentage increase relative to the original length when the sample breaks. Different processing methods and selection of hardener can change its elongation to a great extent. The elongation of silicone rubber is closely related to temperature.
Sixth, operation time. The operation time is calculated from the moment when the colloid is added to the vulcanizer. The more time is saved in the operation of the product, the more favorable it is for the finished product.
Seventh, curing time. Some places will say curing time. That is to say, the vulcanization of silica gel is basically over after such a long time.
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