product

EC
Insulators Silicone rubber and silicone composite
insulating technologies are increasingly the materials of choice for
electrical power grids because they offer high mechanical and insulation
properties, ensure heat and fire resistance and can be used for a wide range
of cabling applications in various sectors: utilities, construction, railways, urban lighting, rapid electrical vehicle (EV)
charging stations, etc

1.Features of silicone rubber

Heat and cold resistance

Since silicone rubber has high bond energy
and good chemical stability, its heat resistance is better than that of organic
polymers. Furthermore, since the intermolecular interaction force is weak, the
glass transition temperature is low and the cold resistance is good. Therefore,
its characteristics will not change when used in any area on the earth.

Waterproof

Since the surface of polysiloxane is a
methyl group, it is hydrophobic and can be used for waterproofing.

Electrical performance

The number of carbon atoms in the silicone
rubber molecule is less than that of organic polymers, so its arc resistance
and leakage resistance are very good. In addition, even if burned, insulating
silicon is formed, so it has excellent electrical insulation. 

Permanent deformation

The permanent set characteristics
(permanent elongation and compression set) of silicone rubber at room
temperature/high temperature are better than those of organic polymers.

2.Classification of silicone rubber

According to the characteristics before
vulcanization, silicone rubber can be divided into two types: solid and liquid.
According to the vulcanization mechanism, it can also be divided into three
types: peroxide vulcanization, addition reaction vulcanization, and
condensation reaction vulcanization. The difference between solid and liquid
silicone rubber is the molecular weight of polysiloxane. Solid silicone rubber
can be vulcanized by anyone of peroxide vulcanization and addition reaction,
usually called high temperature vulcanized rubber (HTV) and heat vulcanized
rubber (HCR). Although the liquid silicone rubber material vulcanized by
addition reaction can be vulcanized at room temperature, it is called liquid
silicone rubber (LSR), low temperature vulcanized rubber (LTV) and
two-component room temperature vulcanized rubber (RTV) due to the different
molding methods and vulcanization temperatures. ).

We are composite insulators manufacturer.
Please feel free to contact us.