Vinyl polysilazane

Introduction
Vinyl polysilazane TC-L11 is a liquid ceramic precursor polymer composed of repeating Si-N units. It undergoes pyrolysis under moderate conditions to produce ceramic products with excellent thermal stability.

Physical Properties
Appearance: Pale yellow or colorless liquid
Viscosity: 50-200 mPa·s
Content: 100%
Molecular Weight: 2000
VOC (%): Depends on the formulation

Main Characteristics

• Multiple curing methods available
• High ceramic yield
• Good adhesion to metals, ceramics, graphite, and other materials
• Easy to form SiCN ceramics
• Resin coatings can withstand temperatures up to 1450°C, and can be adjusted to endure up to 1800°C depending on the formulation

Applications

• Ceramic coatings
• High-temperature adhesives
• Composites

Usage Instructions
Polysilazane TC-L11 can be diluted with various polar or non-polar drying solvents. However, it is sensitive to water and alcohol-based solvents, and contact with these substances will lead to hydrolysis or alcoholysis, causing degradation. Protonic substances should also be avoided.
TC-L11 can be crosslinked and cured at 200°C for 1 hour. If further heated (5°C/min heating rate) to 800°C and held for 40 minutes, a non-oxide ceramic is formed. The composition of the ceramic product is closely related to the pyrolysis atmosphere:

• In nitrogen or inert gas, the product is primarily SiC and Si3N4
• In ammonia gas, the product is mainly Si3N4
• In air, the product is primarily SiOCN
  Additionally, the curing process can be influenced by fillers, which affect the final composition of the ceramic product.
  After use, clean tools promptly with solvent oil. Once TC-L11 has cured, solvents will no longer be effective for cleaning. To remove, immerse in a 40% strong alkaline solution and heat for 24 hours or more.

Storage

1. Store the product in a sealed container in a cool (0-5°C) and dry place, away from direct flame.
2. Unopened original packaging can be stored for up to 12 months.
3. Once opened, the product should be resealed for storage. If no precipitation or clumping occurs after dissolution, it can still be used.

Packaging Specifications
Available in 1kg, 5kg, and 25kg packaging. Custom specifications can be arranged upon customer request.

Labor Protection

1. This product is not edible. If ingested, immediately induce vomiting and seek medical attention.
2. This product is non-toxic, but contact with skin should be minimized. If contact occurs, wash thoroughly with detergent and water. If the product gets into the eyes, seek medical attention immediately.
3. Ensure proper ventilation and exhaust during application.
4. It is recommended that operators wear masks, rubber gloves, and goggles during application.

Disclaimer
The information and data provided in this product datasheet are based on the company’s research and experiments, as well as our subjective standards. Due to variations in experimental conditions and uncontrollable factors, this datasheet is for reference purposes only and does not constitute any guarantee or commitment. Before using this product, customers should perform their own tests to determine its suitability. The company is not responsible for any losses or risks associated with the use of this product based on this datasheet.