Chemical Name: Perhydropolysilazane
Chemical Structural Formula
Description
The coating product is mainly composed of perhydropolysilazane IOTA PHPS, with a small amount of organic polysilazane, nano filler, curing accelerator and other functional additives, and is diluted and stored in a solvent.
Features
Good solubility
Short curing time
Curing a variety of ways
Good adhesion on the metal ceramic polymer materials
Can be converted to SiO2 at a lower temperature
Technical Parameters
Appearance: Colorless Transparent Liquid
Solid content: 20%
Solvent: butyl ether
Liquid density: 1.16-1.31 g/ml
Density after curing: 1.6-2.0 g/ml
Curing mechanism:
The curing of the coating material mainly is the Si-N bond hydrolysis, the mechanism is as follows:
Curing conditions:
-Room temperature: more than 7 days
-Moisture curing: humidity 90%, temperature 150 ℃, 2h
Coating properties:
Composition: SiOx
Coating thickness (nm): >100
Hardness (GPa):
-3 (ammonia curable)
-8-10 (high temperature curing)
Elastic modulus (GPa):
-60 (NH3.H2O curing)
-100-130 (high temperature curing)
Pencil hardness:
-9H (Chinese)
-6H (Mitsubishi)
Transparency (visible light): > 90%
Adhesion (grid method): 0 level
Temperature resistance (air): 800 ℃
Rust, alkali, salt water resistance
Acid (10% hydrochloric acid): about a month.
Applications
Building anti - graffiti
Metal anti-corrosion
Rail
Semiconductor insulating layer
electronic circuit
Plastic packaging waterproof gas barrier
Metal high temperature oxidation resistance
Surface hardening coating
Product Packaging
According to customer demand, 0.5-10 liters metal sealed drum, generally use xylene, dibutyl ether or dichloromethane for filling, solid content of 2-20%.
How to Use
First, clean the substrate surface, coating products using spin-coating, rubbing, spraying, dipping, etc. construction, and then by room temperature curing, high temperature curing, etc. curing.
Clean
Proper cleaning is important. After using promptly use acetone or solvent oil to wipe the tool cleaning.
IOTA PHPS cured, the solvent can not be washed away.
Storage
Store at low temperatures below 10 ℃.
Unopened IOTA PHPS, shelf life: 1 year within China, 6 months abroad.
After opening, use up IOTA PHPS as soon as possible according to the actual situation.
Precautions
Should be in a ventilated, dry environment, and the use of necessary protective measures, such as gloves, masks, goggles;
Do not place uncured IOTA PHPS near to fire, humid air, or water.
After opening, seal it in a timely manner. If it is used in a humid environment, replace the container with nitrogen after using.
