Material Properties of Silicone Rubber
Silicone rubber is known for its excellent comprehensive performance, which make it an ideal material for various applications.
Silicone rubber is highly heat-resistant, maintaining its properties even at extreme temperatures, making it ideal for both high and low-temperature applications.
It offers excellent flexibility and durability, with resistance to aging, UV light, and weathering, ensuring long-term performance.
It is biocompatible and chemically inert, making it safe for medical and food-grade applications with resistance to methanol and ethanol.
Here are some key material properties:
| Property | Description |
|---|---|
| Chemical Composition | Polysiloxane (silicone) polymer, characterized by its silicon-oxygen backbone. |
| Density | Typically ranges from 1.1 to 1.25 g/cm³. |
| Hardness | Available in a wide range of durometers, from very soft (20 Shore A) to very hard (80 Shore A). |
| Tensile Strength | Generally between 4.5 to 11 MPa, depending on the formulation. |
| Elongation at Break | Can range from 100% to over 700%, providing excellent flexibility. |
| Compression Set | Typically low, around 10-30%, indicating good elastic recovery after compression. |
| Temperature Range | Stable from -60°C to +230°C, with special grades usable up to +300°C. |
| Thermal Conductivity | Low, around 0.2 W/m·K, meaning it is a good insulator. |
| Electrical Insulation | Excellent dielectric properties, with a dielectric strength of 20-25 kV/mm. |
| Chemical Resistance | Resistant to water, ozone, UV radiation, and many chemicals. |
| Biocompatibility | Non-toxic and biocompatible, making it suitable for medical and food applications. |
Applications of Silicone Rubber
Silicone rubber has many applications across various industries because of its versatile properties:
- Medical Industry:
- Medical Tubing and Catheters: Silicone’s biocompatibility makes it ideal for medical tubing and catheters.
- Medical Devices: Used in devices like heart pumps and prosthetics due to its flexibility and durability.
- Implants: Silicone is commonly used in implants because of its inert nature and compatibility with the human body.
2. Automotive Industry:
- Gaskets and Seals: Silicone rubber is used for engine gaskets and seals due to its high-temperature resistance and sealing capabilities.
- Hoses: Used in radiator and heater hoses, providing flexibility and resistance to extreme temperatures.
- Keypads and Buttons: Automotive controls and keypads often use silicone for its tactile properties and durability.
3. Consumer Electronics:
- Keypads: Silicone rubber is used in keyboards and remote controls for its soft touch and resilience.
- Seals and Gaskets: Used in electronic devices to protect against dust and moisture.
- Protective Covers: Silicone cases for phones and tablets provide shock absorption and protection.
4. Food and Beverage Industry:
- Baking Molds and Mats: Silicone’s non-stick properties make it ideal for baking molds and mats.
- Seals and Gaskets: Used in food processing equipment for its safety and durability.
- Kitchen Utensils: Spatulas, tongs, and other utensils benefit from silicone’s heat resistance and non-stick nature.
5. Industrial Applications:
- O-Rings and Gaskets: Silicone is used in various sealing applications in industrial machinery.
- Insulation: Provides electrical insulation in high-voltage applications.
- Molding and Prototyping: Used for making molds and prototypes due to its ease of use and flexibility.
6. Beauty Equipment
- Safe and Environmentally Friendly:Silicone is a non-toxic, odorless, and harmless material that meets food-grade safety standards. It is safe for direct contact with human skin, eliminating concerns about allergies or adverse reactions.
- Soft and Comfortable:Silicone offers excellent softness and elasticity, providing a gentle and comfortable touch. It does not cause discomfort to users, making the usage experience more pleasant.
- Temperature Resistance:Silicone has excellent thermal stability, maintaining its properties in both high and low-temperature environments. It does not easily deform or crack, ensuring durability under various conditions.
- Wear and Aging Resistance:Silicone exhibits superior resistance to wear and aging. It can be used for extended periods without significant wear or degradation, ensuring a long service life.
Please contact us for your custom silicone rubber products solution.
Reference Reading:
How to measure the hardness: shore A,B,C,D?
How to measure the density of rubber material?
How to Evaluate the Resistance of Rubber to Oils and Other Solvents？
How to Evaluate the Low-Temperature Performance of Rubber?
How to Evaluate the Resistance of Rubber to Oils and Other Solvents？
How to choose between HNBR and AEM?
How to choose between HNBR and FKM(Viton) for O-Ring/gasket?
How choose Between FKM vs FVMQ?
When to use HNBR and Low Temperature HNBR(LT HNBR)?
Low Temperature FKM Rubber: Ideal for Automotive, Aerospace, and Chemical Processing
