Special Rubber-Phenylene Silicone Rubber

Compared with other silicone rubbers, phenylene silicone rubber has better radiation resistance, so it has been widely used in nuclear power, semiconductors, medical and other fields.

The following are some common parameters of phenylene silicone rubber:

• Density: Generally between 1.2-1.4 g/cm³.

• Hardness: Generally between 30-90 Shore A.

• Tensile strength: generally between 3-10 MPa.

• Elongation at break: Generally between 100%-700%.

• Heat resistance: Can be used in the temperature range of -20℃ to 300℃.

• Radiation resistance: Good radiation resistance in high-dose radiation environments.

• Chemical stability: High chemical stability in environments such as chemicals and solvents.

The radiation resistance of phenylene silicone rubber is reflected in the following aspects:

(1) Strong radiation resistance: Phenylene silicone rubber shows excellent radiation resistance under high-energy gamma rays and electron beam irradiation, and can effectively protect other equipment and components.

(2) Good anti-aging properties: In high-energy radiation environments, the oxidation and heat resistance of phenylene silicone rubber will not be significantly affected by radiation, and it has good anti-aging properties.

(3) Stable electrical properties: The electrical properties of phenylene silicone rubber will not change significantly and remain stable under high-dose radiation.

(4) Good low-temperature performance: Phenylene silicone rubber shows good flexibility and elasticity in low-temperature environments, and will not crack or break even at extremely low temperatures.

Main disadvantages:

(1) Higher cost: The production cost of phenylene silicone rubber is higher and the price is higher than other rubber materials, so it may not be suitable in some low-cost application fields.

(2) Poor processing performance: Since phenylene silicone rubber has high hardness and viscosity, it is difficult to form complex shapes and details during processing, and special processing techniques are required, such as compression molding or injection molding.

(3) Low mechanical strength: The mechanical strength of phenylene silicone rubber is relatively low and is easily affected by mechanical stress and shear stress, so it may not be suitable in some high-load and high-stress environments.

(4) Poor stability: Phenylene silicone rubber is prone to hardening and aging under long-term high-temperature or high-pressure environments, and loses its original performance. Therefore, attention must be paid to the use conditions and lifespan of the material.

Main application areas:

Aerospace field: As an important high-performance rubber material, phenylene silicone rubber can be used to make seals, protective parts, heat insulation parts, fireproof parts, etc. for aircraft, rockets and other aerospace vehicles.

Nuclear industry: Phenylene silicone rubber is widely used in high-radiation environments such as nuclear power plants and nuclear reactors. It can be used to make protective clothing, protective gloves, seals, etc.

Medical devices: Phenylene silicone rubber has good biocompatibility and can be used to make medical devices and artificial organs.

Electronic and electrical fields: Phenylene silicone rubber has excellent electrical insulation properties and can be used to make cables, insulating tubes, high-voltage clamps, insulating pads, etc.

Automobile industry: Phenylene silicone rubber can be used to make seals, vibration absorbers, shock absorbers, etc. for high-temperature components such as automobile engines, transmissions, and transmission systems.