Perfluorooctyltriethoxysilane, with the molecular formula C14H19F13O3Si and CAS number 51851-37-7, is a fluorinated silane coupling agent with a unique chemical structure and excellent properties. This compound is widely used in surface treatment, coatings, electronic materials, and other high-tech fields due to its excellent hydrophobicity, chemical resistance, and low surface energy.

What is the structure of Perfluorooctyltriethoxysilane CAS NO.51851-37-7 ?

The molecular structure of FOTS consists of a silicon atom (Si) bonded to three ethoxy groups (–OCH2CH3) and a perfluorooctyl group (–C8F17). The perfluorooctyl group imparts hydrophobic properties to the compound, making it suitable for surface modification

What are properties of Perfluorooctyltriethoxysilane CAS NO.51851-37-7 ?

It is a colorless transparent liquid with the following main properties:

Molecular weight: 510.37 g/mol

Boiling point: 210 ° C

Density: 1.48 g/cm ³ (25 ° C)

Refractive index: 1.3400 (25 ° C)

Solubility: Soluble in most organic solvents, such as ethanol, ethyl acetate, toluene, etc., but insoluble in water.

Application area Perfluorooctyltriethoxysilane CAS NO.51851-37-7 ?

1. Surface treatment:

Perfluorooctyltriethoxysilane CAS NO.51851-37-7 is commonly used for surface treatment of various materials, endowing it with excellent hydrophobicity and anti fouling properties. The treated surface not only effectively prevents the adhesion of water and oil stains, but also improves the corrosion resistance of the material.

1.1）Glass and ceramic surfaces: Used for the treatment of glass and ceramic surfaces, forming a protective layer that is resistant to water, oil, and dirt, allowing them to have a longer service life in harsh environments.

1.2）Metal surface: During the metal surface treatment process, Perfluorooctyltriethoxysilane CAS NO.51851-37-7 can form a corrosion-resistant and rust resistant coating, improving the service life and performance of metal products.

2. Coatings and Paints

In coatings and paints, the use of Perfluorooctyltriethoxysilane CAS NO.51851-37-7 as an additive can significantly improve the weather and chemical resistance of coatings. It can also endow the coating with self-cleaning function, making the surface easier to clean and maintain.

2.1）Architectural paint: Used in exterior wall coatings, it can give the coating surface a self-cleaning effect and reduce maintenance costs.

2.2） Industrial coating: Used as a protective coating for various industrial equipment, improving its corrosion resistance and extending the service life of the equipment.

3. Electronic materials

In the electronic industry, Perfluorooctyltriethoxysilane CAS NO.51851-37-7 is used for surface treatment in the manufacturing of electronic components to improve their moisture resistance and insulation performance. This plays an important role in improving the reliability and lifespan of electronic products.

3.1） Semiconductor components: Used for packaging and protection of semiconductor components, improving their stability and durability.

3.2） Printed Circuit Board (PCB): The processed PCB board has better moisture resistance and reduces the failure rate of the circuit board in humid environments.

4. Textile processing

 Perfluorooctyltriethoxysilane CAS NO.51851-37-7 is also widely used in the waterproof and oil proof treatment of textiles. Processed textiles not only have excellent waterproof and oil resistant properties, but also maintain good breathability and softness.

4.1）Outdoor clothing: The processed outdoor clothing can be waterproof, oil resistant, and has good breathability, improving wearing comfort.

4.2）Home textiles: Used for anti fouling treatment of home fabrics such as sofas and carpets, to extend their service life.

5. Building material

In the field of building materials, Perfluorooctyltriethoxysilane CAS NO.51851-37-7 is used for surface treatment of building materials such as concrete and stone, improving their stain resistance and waterproofing, thereby extending their service life and reducing maintenance costs.

5.1）Concrete protection: Form a waterproof layer on the surface of concrete to prevent water infiltration and freeze-thaw damage.

5.2）Stone protection: Used for the surface protection treatment of marble, granite and other stone materials, maintaining their natural luster and anti fouling ability.

6. Aerospace

In the aerospace field, Perfluorooctyltriethoxysilane CAS NO.51851-37-7 is used for surface treatment of aircraft, satellites and other equipment to improve their corrosion and weather resistance.

6.1）Aircraft coating: A coating used on the surface of aircraft to enhance its corrosion and stain resistance, and reduce maintenance costs.

6.2）Satellite surface protection: Form a protective layer on the surface of the satellite to improve its durability in the space environment.

7. Medical apparatus and instruments:

Perfluorooctyltriethoxysilane CAS NO.51851-37-7 also has important applications in the field of medical devices. It can be used for anti fouling and antibacterial treatment on the surface of medical devices, improving the hygiene standards and service life of the devices.

7.1）Surgical instruments: The surface of the processed surgical instruments is smooth and stain resistant, making it easy to clean and disinfect.

7.2）Medical equipment: used for surface treatment of various medical devices to enhance their antibacterial performance.

8. Automotive industry:

In the automotive industry, Perfluorooctyltriethoxysilane CAS NO.51851-37-7 is used for surface treatment of automotive components to improve their weather resistance and anti fouling performance.

8.1） Car glass: The treated car glass has waterproof, oil resistant, and stain resistant properties, improving driving safety.

8.2） Automotive coating: used in automotive coatings to enhance their weather resistance and corrosion resistance.

Edited by :Daken Chem
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