Organic polyborosilazane (Potteryable precursor polymer) IOTA 9120
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.
Short curing time
Various curing methods
High ceramic yield
Good adhesion on the metal \ ceramic \ graphite materials
Easy to prepare SiBCN ceramics
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
Ceramic matrix composites (CMCs)
Metal matrix composites
High temperature resistant adhesive
High temperature resistant anti-oxidation ceramic coating
Ceramic preform impregnated
Organic and inorganic hybrid materials
Upon customer demand, it is packed in 0.5-20 liters in plastic drum, solid content is100%.
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 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.
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.
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