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What Is Silicon Rubber? Some Basic Facts Revealed

Silicone rubber is a type of elastomer that is composed of silicon, carbon, hydrogen, and oxygen atoms. It is a synthetic material that has unique properties and is widely used in a variety of applications due to its excellent thermal and electrical insulating properties, as well as its resistance to extreme temperatures, chemicals, and weathering.

In this article, we will delve into the world of silicone rubber, exploring what it is, how it is made, its properties, and its various applications.

What is Silicone Rubber?

Silicone rubber (ยาง ซิ ลิ โคน, which is the term in Thai) is a type of elastomer that is made from a polymer of silicon and oxygen atoms, with additional organic groups attached to the silicon atoms. The organic groups determine the specific properties of the silicone rubber, such as its strength, flexibility, and resistance to temperature, chemicals, and weathering.

The production of silicone rubber involves the polymerization of a liquid silicone base, which can be done by various methods such as addition cure, condensation cure, and peroxide cure. The resulting material can be formulated to have specific properties that are required for different applications.

Properties of Silicone Rubber

Silicone rubber is a versatile material that has several unique properties that make it suitable for a wide range of applications. Some of the properties of silicone rubber include:

  1. Temperature Resistance: Silicone rubber can withstand a wide range of temperatures, from -100°C to +300°C, without losing its flexibility or mechanical properties. This makes it ideal for use in applications where extreme temperatures are involved.
  2. Chemical Resistance: Silicone rubber is highly resistant to chemicals, including acids, bases, solvents, and oils. This makes it ideal for use in harsh chemical environments.
  3. Electrical Insulation: Silicone rubber is an excellent electrical insulator, making it ideal for use in electrical applications where insulation is required.
  4. Weather Resistance: Silicone rubber is highly resistant to weathering, including UV radiation, ozone, and moisture. This makes it ideal for use in outdoor applications where exposure to the elements is a concern.
  5. Tear Resistance: Silicone rubber is highly resistant to tearing and abrasion, making it ideal for use in applications where durability is required.

Applications of Silicone Rubber

Silicone rubber is used in a wide range of applications due to its unique properties. Some of the common applications of silicone rubber include:

  1. Automotive: Silicone rubber is used in automotive applications, including gaskets, seals, hoses, and wiring harnesses, due to its excellent temperature and chemical resistance.
  2. Aerospace: Silicone rubber is used in aerospace applications, including seals, gaskets, and O-rings, due to its high temperature resistance.
  3. Medical: Silicone rubber is used in medical applications, including implants, tubing, and medical devices, due to its biocompatibility and resistance to sterilisation.
  4. Consumer Goods: Silicone rubber is used in consumer goods, including kitchen utensils, toys, and electronics, due to its durability, flexibility, and safety.
  5. Construction: Silicone rubber is used in construction applications, including seals, adhesives, and coatings, due to its weathering and chemical resistance.

Conclusion

In conclusion, silicone rubber is a unique material that has several properties that make it ideal for a wide range of applications. Its high temperature and chemical resistance, electrical insulation properties, tear resistance, and weathering resistance make it a versatile material that can be used in many industries, including automotive, aerospace, medical, consumer goods, and construction. With its excellent properties and versatility, silicone rubber will continue to be an important material in modern manufacturing.

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