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IOTA-9120 is a liquid precursor polymer composed of repeating Si–N and Si–N–B units, featuring dual functionality as both a thermosetting resin and a ceramic precursor. It can be pyrolyzed under relatively mild conditions to produce SiBCN ceramics with excellent thermal stability, making it an ideal choice for high-performance ceramic matrix composites, high-temperature adhesives, and oxidation-resistant coatings.
✅ Low viscosity – good flowability, easy impregnation and coating
✅ Short curing time – efficient production
✅ Multiple curing methods – thermal curing or platinum-catalyzed hydrosilylation
✅ High ceramic yield – >50% at 800°C
✅ Good adhesion – excellent bonding to metals, ceramics, graphite, and other materials
✅ Easy preparation of SiBCN ceramics – broad processing window
| Parameter | Specification |
|---|---|
| Appearance | Light yellow liquid |
| Solid content | 99.9% (liquid form) |
| Molecular weight (Mn) | 700–900 |
| Viscosity | 10,000–20,000 cp |
| VOC | N/A |
| Ceramic yield of cured product (800°C) | >50% |
| Ceramic density | 1.70–2.00 g/cm³ |
Thermal Curing
Crosslinks at 120–180°C, can be carried out in air or inert atmosphere.
Platinum-Catalyzed Hydrosilylation
Cures at 80–100°C with a platinum catalyst. Curing time: typically 2–5 hours, depending on temperature and catalyst concentration.
The cured product first converts to amorphous ceramic upon pyrolysis, then to crystalline ceramic at higher temperatures:
Below 1600°C: Amorphous product
Above 1600°C: Crystallization begins
Ceramic composition vs. pyrolysis atmosphere:
| Atmosphere | Ceramic Product |
|---|---|
| Nitrogen or Argon | SiC + Si₃N₄ |
| Ammonia | Mainly Si₃N₄ |
| Air | Mainly SiBOCN |
Fillers may also influence pyrolysis behavior and final ceramic composition.
IOTA-9120 can be diluted with various dry solvents. However, it is sensitive to water and alcohol solvents, which can cause hydrolysis or alcoholysis and product degradation. Avoid contact with acids, bases, and other protonic substances.
Ceramic Matrix Composites (CMCs) – impregnation-pyrolysis for high-performance composites
Metal Matrix Composites – interface modification and oxidation protection
High-Temperature Adhesives – heat-resistant bonding of ceramics, metals, graphite
Anti-Corrosion Coatings – protective coatings for high-temperature corrosive environments
High-Temperature Oxidation-Resistant Ceramic Coatings – surface protection for extreme thermal environments
Ceramic Preform Impregnation – densification treatments
Thermosetting Resins – high-temperature structural materials
Organic-Inorganic Hybrid Materials – multi-functional hybrid systems
✅ Low-temperature crosslinking (80–180°C) – wide processing window
✅ High ceramic yield (>50%) – cost-effective
✅ Withstands 1600°C+ – suited for extreme thermal environments
✅ Multiple curing options – flexible process adaptation
✅ Good adhesion to metals, ceramics, and graphite
✅ Versatile – suitable for CMCs, MMCs, coatings, adhesives, and more
For samples, curing process recommendations, or technical support, please feel free to contact us.
