Product
description
IOTA 9120 is a liquid
precursor polymer consisting of repeating Si-N units、Si-N-B units. It can
be used as a thermosetting resin and a ceramic precurs. Under relatively mild
conditions, the SiBCN ceramic products with good temperature resistance
are obtained, especially for high temperature resistant adhesives.
IOTA 9120 can be
cross-linked under the temperature of 120-180 ° C, curing can be done in air or
inert atmosphere.
IOTA 9120 can also do
hydrosilylation reaction by platinum catalyst , curing at 80-100 ℃. The curing time depends on the curing temperature
and the amount of catalyst, usually 2-5h.
First, IOTA 9120 cured
product converted to amorphous ceramics by high temperature cracking,
eventually get crystalline ceramics. It is amorphous product below 1600 ℃, begin to crystallize above 1600 ℃. Ceramic product composition has great
relation with cracking atmosphere, SiC and Si3N4 under nitrogen or argon;
mainly Si3N4 under Ammonia; mainly SiBOCN under air conditions. In addition,
the cured product cracking is easily influenced by filler, and result affects
the composition of the final ceramic product.
IOTA 9120
can be diluted with various polar or non-polar dry solvents. It is sensitive to
water, alcohol solvents, hydrolysis or alcoholysis reaction, to make the
product deteriorate. And it should avoid contact with acid, alkali and other
proton type substances.
Product
features
Low
viscosity
Short curing time
Various curing methods
High ceramic yield
Good adhesion on the
metal \ ceramic \ graphite materials
Easy to prepare SiBCN
ceramics
Technical
Parameters:
Apparent features:
light yellow liquid
Solid content %:
100% liquid
Molecular weight (Mn):
700-900
Viscosity:
10000-20000 cp
VOC (%):
N/A
Cured
ceramic production (800℃): >55%
Ceramic density:
1.70-2.00 g/cm-3
Applications:
Ceramic matrix composites
(CMCs)
Metal matrix composites
High temperature
resistant adhesive
Anticorrosive coating
High temperature
resistant anti-oxidation ceramic coating
Ceramic preform
impregnated
Thermosetting resin
Organic and inorganic
hybrid materials
Packaging:
Upon customer demand, it
is packed in 0.5-20 liters in plastic drum, solid content is100%.
Clean:
Proper cleaning method is
important. After use, take acetone or solvent oil immediately to wipe the tool
and clean. Once IOTA 9120 cured, the solvent cannot wash it away.
Shelf life:
Shelf life of unopened polyborosilazane IOTA 9120 is one year; opened polyborosilazane shelf life is depending
on protection measures. Under sealed low temperature drying condition, the life
time is more than two months.
Precautions:
When use polyborosilazane,
it should be in a ventilated, dry environment and with the necessary protective
measures such as gloves, masks, goggles; We shouldn’t put the
uncured IOTA 9120 near fire, humid air and water.