Polycarbosilane (PCS): Properties and Applications

     Polycarbosilane (PCS) cas:62306-27-8 is a unique material with various applications in different area. Let’s learn about its properties and potential uses!

1.Composition and Structure:

- Molecular Formula:

- Molecular Chain Structure:

2. Key Properties:

1) Fragility: PCS is extremely brittle and can easily be crushed into powder.

2) Density: Slightly higher than water, typically ranging from 1.05 to 1.15g·cm-3.

3) Solubility: PCS is soluble in solvents like xylene, tetrahydrofuran, and n-hexane, but insoluble in water.

4) Melting Point: PCS softens and melts above its softening point temperature under inert gas protection. It starts decomposing at temperatures above 400°C.

5) Chemical Properties:

          ①PCS can oxidize and deteriorate when stored in the air for extended periods.

          ②At temperatures above 1000°C, it decomposes to form SiC ceramics, which can be used to produce continuous silicon carbide fibers, ceramic coatings, SiC micro-powders, and more.

3. Applications:

     1) Luminescent Ceramic Films: PCS can be used to prepare luminous ceramic coatings.

     2) Silicon Carbide Fibers: PCS is utilized in the production of silicon carbide fibers.

     3) High-Temperature Coatings: PCS can be used as a precursor for high-temperature coatings.

     4) Ceramic Matrix Composites: PCS serves as a base material for ceramic-based composites.

     5) High-Temperature Binders: PCS can be used to create high-temperature adhesives.

     6) β-SiC Nanopowders: PCS is employed in the production of β-SiC nanoparticles.

4.Storage:

     PCS should be stored in vacuum-sealed or inert gas-sealed containers in a cool, dry environment (temperature ≤ -5°C). It has a shelf life of 5 years, and if it passes the inspection after expiration, it could still be used.