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Applications and Properties of Polysilazane Resin in Multiple Fields

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    I. Core Application Scenarios

    1. High-Temperature Protection: Polysilazane resin is pyrolyzed into SiCN/Si3N4 ceramics, forming a dense micron/nanoscale coating suitable for extreme high temperatures. Examples include aero-engine turbine blades (stable operation at 1200℃), Mars rover sensor housings (over 20 years of space service), and petrochemical reactors (5-year corrosion ≤ 0.5%).

    2. Electronic Packaging and Semiconductors: Low dielectric constant (2.5-3.5) material used in key stages of chip manufacturing: 7nm logic chip interlayer dielectric layer reduces signal delay by 15%; 10nm DRAM dielectric isolation layer extends data retention time by 20%; silicon carbide module passivation layer improves conversion efficiency by 3%-5%.

    3. Composite Material Reinforcement: As an interface layer or matrix, it improves performance: rocket nozzles (high temperature resistance), near-Earth orbit polymers (SiON coating resists atomic oxygen, extending lifespan from 6 months to several years), and 3D printed ceramic parts (biomedical implants, high precision, no sintering required). 4. Metal and Organic Material Protection: 400-500nm coating on aluminum alloy surfaces, electrochemical impedance 10cm (1040cm without coating); 3.18μm transparent PET film coating repairs scratches, suitable for flexible electronics; 5μm coating on aluminum rims provides dust and discoloration resistance above 500℃, and contact angle verification confirms anti-fouling properties.


    II. Key Functional Characteristics

    1. High Temperature Resistance and Chemical Stability: Theoretical temperature resistance 1800℃, stable at 400-1300℃, high-temperature decomposition into ceramic; resistant to 98% concentrated sulfuric acid (6800 hours), 40% sodium hydroxide (5200 hours), and salt spray (10000 hours) without failure, radiation resistant.

    2. Insulation and Low Loss: Dielectric strength >10 V/mm, low dielectric loss, suitable for high-frequency devices; photovoltaic module coating withstands 800℃ rapid cooling without cracking, improving weather resistance by 3 times.

    3. Hydrophobic and Antifouling: After curing, the water contact angle is >95°, chemically inert and blocking contaminants; superhydrophobicity (antifreeze, anti-icing, self-cleaning) is achieved through micro/nano structures or the addition of organic fluorine.

    4. Adhesion and Compatibility: Can be compounded with epoxy resins, amino resins, and silicone resins, balancing adhesion and high-temperature resistance; the addition of fillers such as alumina and fumed silica enhances mechanical strength, making it suitable for high-temperature protective coatings.

    5. Environmentally Friendly and Flexible Processes: Some systems are solvent-free, conforming to green coating standards; liquid precursors can be sprayed, dipped, or 3D printed, adaptable to complex shape processing (such as precision ceramic parts).


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