IOTA
Organic Polysilazane IOTA 9150K
Description
IOTA 9150K is a
liquid polysilazane, it is developed for room temperature cured coating
systems. The product has a unique Si-NH-Si bond, can be cured at room
temperature, curing mainly involved in the reaction of Si-NH-Si hydrolysis and
oxidation. While the Si-NH-Si bond and the substrate surface-OH easily react,
and bring the substrate and good adhesion. Addition the appropriate catalyst in
the resin can promote Si-H and Si-NH-Si reaction, after curing resin to form
three-dimensional cross-linked structure, giving the material good mechanical
properties.
IOTA 9150K has low
viscosity and good adhesion, can be applied to various types of substrates by
smearing, dipping, spraying, brushing and other methods, the main substrates
are metals, alloys, glass, paint films and plastics (such as PP, PC, PVC,
PMMA), etc.
IOTA 9150K has high
activity, generally solid content is 50%, could customized as customers’
requirements.
Product Features
Low viscosity
Short surface dry
time
Various curing methods
Non-flammable after
curing
Anti-oxidation,
anti-corrosion
Easy to clean
Good adhesion on the
metal ceramic graphite materials
Applications（for large-scale industrial
production）
Coatings
Adhesives
Non-flammable
composites
Polymer matrix
composites
Glass and Abrasives
Applications with
low surface tension and easy cleaning field
Technical index
Appearance: Colorless to light yellow transparent liquid
Molecular
weight (Mn): 800-900
Solid
content: ≥50% (other contents could be customized)
Liquid
Density: 0.98g/cm3-0.99g/cm3
Viscosity:
10cp-40cp
Cracking
threshold: 100µm+(coating thickness)
Curing
conditions: cured in room temperature without catalyst
Surface
dry time in room temp.: 1min-10min (could be customized)
Totally
cured time: a. more than 24hours in room temp.
b. Heating
could promote the curing process, heat in 120℃- 150℃ for 2-5hours after surface dry.①
The
hardness after cured: Room temp. cured
for 12hours: 5H
Room temp. cured for
24hours: 7H
Hydrophobic
angle: 100°-105°
Recommended
temperature of varnish coating: <300℃②
Recommended
operating temperature with main coating: <1000℃
Chemical
masking: Well performed with O2，H2O
and other gas
Linear
shrinkage: <1%
Transmittance
(visible light): >95%
Metal
Adhesion (Cross-Hatch): 0 grade
Shelf
life: 12months in unopened condition
Notes
1.
The heating
curing process of IOTA 9150K is operated after surface dried, curing temp. is 60℃-200℃. The totally
cured time will be shorten as the temp increasing.
2.
The operating
temp. of IOTA 9150K is related to the coating thickness, the higher thickness, the better protection, but the coating is
easy to be crack in high temperature.
Compatibility
The product could be miscible with most non-polar solvents, such as
alkanes, ethers, ketones, esters. Insoluble in alcohol and ether solvents, such
as diethylene glycol dimethyl ether, diethylene glycol dibutyl ether,
tetraethyl ether Butyl glycol ether.
It’s also miscible with a variety of resins, such as epoxy silicone
resin, silicone resin, it will shorten the curing time and improve resin
hardness when mixed with silicone resins.
Operation methods
Operating and storing in a dry,
cool and well-ventilated environment, away from heat and fire sources, the
recommended temperature is 0-20℃.
The gloves, masks, etc. is
necessary when taking the product.
Uncured product should not be
placed close to fire sources, humid air, or water.
The container must be replace the
air with nitrogen/argon and completely sealed in time after use.
Unused product that has been
formulated cannot be recycled and should be disposed of in accordance with
local regulations.
Products beyond the shelf life can be used only after the retesting
complied.
Precautions:
The storage environment should be dry, cool and well ventilated, away
from heat and fire sources. The packaging container must be kept tightly closed
and handled with care. The storage temperature should be kept between 0°C and
20°C, and the storage period is 12 months.
