Flame retardant rubber seals
sealing strip analysing choice should follow the following three principles: 1.
The rubber itself has a flame retardant;
Combustion heat small;
It has excellent high temperature heat resistance.
The body of the flame retardant rubber material selection more flame retardant, flame retardant resin, rubber, or both.
From the point of flame retardant effect, flame retardant rubber seals can be divided into three categories: 1.
Hydrocarbon rubber, such as natural rubber, butadiene rubber, styrene butadiene rubber, ethylene-propylene rubber, nitrile rubber, butyl rubber seals, etc. , the oxygen index & lt;
Containing halogen rubber, they have good flame retardancy, fluorine rubber & gt;
Neoprene & gt;
About = chlorinated polyethylene and chlorosulfonated polyethylene fluorine rubber oxygen index above 65%, other 25%
With carbon rubber in the main chain, such as silicone rubber and chlorohydrin rubber, polyurethane rubber, etc. , some flammable, some flame retardant.
and flame retardant properties of the resin and its structure has a close relationship.
Containing halogen, benzene or conjugated double bond of rubber, high oxygen index, such as neoprene oxygen index was 33%, the flame retardant rubber.
Silicone rubber is also a good fire resistant polymer.
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