What are the factors that affect the quality of silicone utensils?
1. Viscosity.
Explanation of technical terms: volume characteristics of liquid, quasi-liquid or quasi-solid substances against flow. That is, when flowing under the action of external force, the internal friction or internal resistance of flow between molecules. Usually viscosity and hardness are proportional.
2. the hardness.
The ability of a material to locally resist the pressing of a hard object into its surface is called hardness. Silicone rubber has a Shore hardness range of 10 to 80. This gives the designer full freedom to choose the desired hardness. to best implement a specific function. Various intermediate hardness values can be achieved by mixing different proportions of polymer substrates, fillers and auxiliaries. Similarly, the time and temperature of heat curing can also change the hardness. without destroying other physical characteristics.
3.. Tensile strength.
Tensile strength refers to the force per range unit required to cause a piece of rubber material to tear. The tensile strength of thermally vulcanized solid silicone rubber ranges from 4.0 to 12.5 MPa. The tensile strength of fluorosilicone rubber ranges from 8.7-12.1MPa. The tensile strength of liquid silicone rubber ranges from 3.6 to 11.0 MPa.
4.Vulcanization time.
Some places will say it is curing time. That is to say, after such a long time, the vulcanization reaction of silica gel is basically over. This basically ends that the product is already available. But in fact there is still a very small part of the curing reaction has not ended. Therefore, products made of silicone rubber, such as silicone molds, are usually put into use for a period of time.
