Products primarily made from silicone are referred to as silicone-processed goods.Silicone ProductsSilica gel is a porous material with varying particle sizes, formed by the appropriate dehydration of silica gel. It possesses an open porous structure, capable of adsorbing many substances, and is an excellent desiccant, adsorbent, and catalyst carrier for silicone products. What factors influence the quality of silicone products?
1. Viscosity, a scientific term: the volume characteristic of a liquid, pseudo-liquid, or pseudo-solid material's resistance to flow, which is the internal friction or flow resistance between molecules when the silicone key flows under the action of external force. Typically, viscosity is proportional to hardness.
2. Hardness refers to a material's resistance to indentation by a hard object on its surface. Silicone rubber boasts a hardness range of 10 to 80 Shore A durometer, which provides designers with ample freedom to select the desired level of hardness to effectively achieve specific functions. By blending polymer substrates, fillers, and additives in different proportions, various intermediate hardness levels of liquid silicone can be achieved. Similarly, the curing time and temperature can also alter the hardness without compromising other physical properties.
The tensile strength of silicone products refers to the force required per unit area to tear a sample of rubber material. The tensile strength range of heat-cured solid silicone rubber is between 4.0 and 12.5 MPa, the range of fluorosilicone rubber is between 8.7 and 12.1 MPa, and the tensile strength range of liquid silicone rubber is between 3.6 and 11.0 MPa.
What are the properties of silicone products??
High-temperature performance is a significant characteristic of silicone rubber products. Although the strength of silicone rubber at room temperature is only half that of natural sealing rubber or some synthetic rubbers, in high-temperature environments above 200°C, silicone rubber can still maintain certain flexibility, resilience, and surface hardness, with no significant changes in mechanical properties.
The glass transition temperature of low-temperature performance silicone rubber products is generally -70 to -50°C, with special formulations capable of reaching -100°C. This indicates their exceptional low-temperature performance, which is of great significance to the aviation and aerospace industries.
3. The weather-resistant silicone rubber features excellent stability against oxygen, ozone, and ultraviolet radiation, even without any additives, with Si-O-Si rubber keys demonstrating superior weather resistance.
4. Electrical Properties: Silicon rubber boasts excellent insulating properties, as well as superior corona resistance and arc resistance.
Yongle Rubber & PlasticWe have successfully passed the ISO9001 certification. Our main products include platinum silicone tubes, peristaltic pump silicone tubes, food molding silicone components, and silicone, as well as customized production of plastic products sealing components. With the three better strategies of "developing better products, providing better services, and creating a better image," we continuously undergo transformation and management innovation to enhance the comprehensive competitiveness of the company.
