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What Are The Significant Advantages Of Silicone Rubber?


Silicone rubber is a rubber whose main chain is composed of alternating silicon and oxygen atoms, with two organic groups usually attached to the silicon atom. Ordinary silicone rubber mainly consists of silicone oxygen links containing methyl and a small amount of vinyl. The introduction of phenyl can improve the high and low temperature resistance of silicone rubber, while the introduction of trifluoropropyl and cyano can improve the temperature and oil resistance of silicone rubber.


The permeability of silicone rubber products is good, and the oxygen transmission rate is the highest among synthetic polymers. In addition, silicone rubber products also have the outstanding characteristics of physiological inertness and does not cause blood clotting, so it is widely used in the medical field. Although the strength of silicone rubber at room temperature is only half of natural rubber or some synthetic rubber, but in the high temperature environment above 200 ℃, silicone rubber can still maintain a certain degree of flexibility, resilience and surface hardness, and no significant changes in mechanical properties.


Stable high temperature performance

This is the most outstanding advantage of silicone rubber products, able to resist high temperature. It can both play the proper strength at room temperature and work at high temperature. At room temperature, it can not play 100% of its strength, far inferior to natural rubber and synthetic rubber. But in the environment above 200 degrees, it still maintains the proper flexibility as well as elasticity and hardness. At such high temperatures, the mechanical properties remain unchanged.

H2: Good low temperatures performance 

Silicone rubber products have good low-temperature resistance and generally works at -55℃. After the introduction of phenyl, it can reach -73℃. There are some silicone rubber products with more special formulations that can perform at minus 100 degrees Celsius. This excellent performance is particularly practical and can be used in industrial applications. It is more reassuring to work with a competent supplier, such as Cosmo, which focuses on silicone rubber research and provides customized silicone rubber application solutions for a wide range of uses, and can be used in new energy, military, medical, aviation, marine, electronics, automotive, instrumentation, power supply, high-speed rail and other industry fields.

Good weather resistance 

Silicone rubber products do not require high working environment and can resist oxidation, UV and ozone. Even without adding other additives, it can play a good weather resistance.


Good electrical properties

Silicone rubber products contain insulating materials, which greatly improves the insulation performance. Regardless of the field in which it is used, it is durable in terms of insulation, corona resistance, and arc resistance.

Good physical and mechanical properties

At room temperature, the physical and mechanical properties of silicone rubber products are quite good. It can be used normally in environments ranging from -50 degrees Celsius to -150 degrees Celsius.



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