Rubber is divided into natural rubber and synthetic rubber, the structure of natural rubber is a high polymer of isoprene, synthetic rubber such as butadiene rubber, neoprene rubber, butadiene rubber and so on. Silica gel as a kind of rubber, with high and low temperature resistance, weather resistance, ozone resistance, non-toxic environmental protection and other characteristics. Silicone and rubber can not say which good, can only say that the application in the right way.
The difference between rubber and silicone
Rubber is divided into natural rubber and synthetic rubber, the structure of natural rubber is a high polymer of isoprene, synthetic rubber such as butadiene rubber, neoprene rubber, butadiene rubber and so on. When the crosslinked rubber is deformed by external force, it has the ability of rapid recovery, and has good physical and mechanical properties and chemical stability.
Silicone rubber is mainly composed of high molar mass linear polysiloxane. Because si-O-Si bond is its basic bond type, silicon atoms are mainly connected with methyl groups, and a very small amount of unsaturated groups are introduced on the side chain. The intermolecular force is small, the molecules are spiral structure, and methyl groups are arranged outward and can rotate freely. Therefore, silicone rubber vulcanization has excellent high and low temperature resistance (-100~315℃). Weather resistance, hate water, electrical insulation, physiological inertia and other characteristics, in the national defense, medical and health, industrial and agricultural production and People’s Daily life has been widely used. Most importantly, it is not toxic and is commonly used in things like pacifiers and breast implants.
1. They have different definitions. Rubber is a general term, including many kinds, such as natural rubber, butadiene rubber, styrene butadiene rubber, propylene rubber, of course, also includes silicone rubber; And silica gel is one of the specific varieties of rubber.
2, rubber is widely used, mainly using the elastic effect of rubber, such as rubber tires, bridge shock absorption, rubber hose cots, mainly in industrial use; Silica gel is mostly used in food and household appliances, such as pacifiers, children’s spoons, voltage pot sealing and so on.
3, different types and grades of rubber applications are not the same, such as natural rubber is mainly used for tires, butyl rubber is mainly used for inner tubes, epDM rubber for sealing products.
4, in the selection of rubber, need to be based on specific performance indicators, such as hardness, tensile strength, compression deformation, wear, tear, use environment, etc.. From their properties, we can see that silicone rubber has incomparable advantages of ordinary rubber. The price of silicone rubber is more expensive, which is better depends on our use. If ordinary rubber products can meet our needs, there is no need to kill a chicken with a knife, the use of silicone with better performance and higher price.
