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Organic Polyborosilazane IOTA-9120 Alias: Ceramifiable Precursor Polymer

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1. When to Choose IOTA-9120

IOTA-9120 should be selected in the following scenarios and for these specific needs:

  • To Manufacture SiBCN Advanced Ceramics: It is the ideal precursor when your end goal is to produce high-performance silicon boron carbonitride (SiBCN) ceramics, known for their exceptional thermal stability.

  • For Low-Temperature Shaping of Complex Parts: Unlike traditional ceramic powder sintering that requires extremely high temperatures (>1500°C), IOTA-9120 can be shaped like a plastic (cured) at low temperatures (120-180°C) and later transformed into a ceramic through pyrolysis. This is perfect for manufacturing complex, precision ceramic components.

  • When Process Flexibility is Required: It offers two curing mechanisms to adapt to different production conditions:

    • Thermal Curing: Catalyst-free, simply heat in air or an inert atmosphere (120-180°C).

    • Catalytic Curing: Using a platinum catalyst, it cures rapidly (2-5 hours) at even lower temperatures (80-100°C).

  • For High-Performance Bonding or Coatings: When you need to bond metals, ceramics, graphite, or apply a protective coating that must maintain performance at high temperatures. IOTA-9120 provides excellent initial adhesion and then transforms into a high-temperature, oxidation-resistant, and corrosion-resistant ceramic phase.

  • For Manufacturing Ceramic Matrix Composites (CMCs): It is a key matrix precursor material for manufacturing fiber-reinforced composites via the Polymer Impregnation and Pyrolysis (PIP) process.

Important Note: This product is highly sensitive to water, alcohols, acids, and bases, which cause degradation. It should be avoided if these cannot be excluded from the processing environment.


2. Its Key Characteristics

The core characteristics of IOTA-9120 are:

  1. Physical Properties:

    • Appearance: Pale yellow liquid.

    • Low Viscosity: 10,000 - 20,000 cP, which ensures good flowability and processability. It can be diluted with dry solvents for impregnation or coating.

    • High Purity: Solid content >99%, VOC is N/A (not detectable).

  2. Processing Properties:

    • Dual Curing Mechanisms: Offers both thermal and catalytic curing for maximum process flexibility.

    • Fast Curing Time: As fast as 2-5 hours under catalytic conditions.

  3. Ceramification Properties:

    • High Ceramic Yield: >50% (at 800°C), which helps minimize defects caused by large volume shrinkage.

    • Final Ceramic Density: 1.70 - 2.00 g/cm³.

    • Tailorable Ceramic Composition: The final ceramic composition is highly dependent on the pyrolysis atmosphere (e.g., yields SiC/Si₃N₄ in N₂/Ar, Si₃N₄ in NH₃, and SiBOCN in air). This allows for performance customization.

    • Filler Compatibility: The pyrolysis process and final ceramic properties can be modified by incorporating fillers.

  4. Application Properties:

    • Excellent Adhesion: Bonds well to various substrates like metals, ceramics, and graphite.


3. Its Application Fields

Based on its properties, IOTA-9120 is primarily used in these high-tech fields:

  1. Ceramic Matrix Composites (CMCs): Used as a matrix precursor to fabricate high-temperature structural components (e.g., engine hot-section parts) for aerospace and energy industries via the PIP process.

  2. High-Temperature / Anti-Oxidation Ceramic Coatings: Applied to surfaces of metals or graphite. After curing and pyrolysis, it forms a dense ceramic protective layer, significantly enhancing the substrate's high-temperature resistance, oxidation resistance, and corrosion resistance.

  3. High-Performance Adhesives: Functions as a high-temperature adhesive for joining ceramics, metals, etc. The adhesive layer can be ceramified, maintaining its bond strength in extreme environments.

  4. Impregnant for Ceramic Preforms: Used to impregnate porous ceramics or fiber preforms to increase their density and strength through multiple PIP cycles.

  5. Advanced Ceramic Manufacturing: Used to create complex-shaped SiBCN ceramic components, such as bearings, nozzles, etc.

  6. Thermoset Resin: Can be used directly as a special class of thermoset resin, with the cured polymer itself offering good heat resistance.

  7. Organic-Inorganic Hybrid Materials: Its cured state is itself an organic-inorganic hybrid material with unique properties before full ceramification.

Summary: IOTA-9120 is a key precursor material that acts as a "polymer-to-ceramic" bridge, combining excellent processability with superior end-performance. It is critical for manufacturing materials designed to withstand extreme environments.

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