GR-92 Nano Thermal Insulation Microsilica is a highly reactive nano-sized microsilica powder specifically developed for high-temperature thermal insulation systems. Through optimized particle size and surface activity control, this product achieves enhanced filling and compaction effects alongside multi-scale pore structure optimization capabilities.GR-92 combines ultra-fine particle size, high specific surface area, high active SiO₂ content, and excellent dispersibility. It significantly enhances material thermal resistance, density, and high-temperature strength while reducing thermal conductivity.
Nano Thermal Insulation Microsilica Gr-92
Key Specifications
Gr-92: 0.1μm spherical SiO₂ powder (impurity removal process)
Product Characteristics:High-purity microsilica powder refined by 1800°C smelting, offering a heat-resistant, low-thermal-conductivity silicon source for high-temperature nano-insulation materials.
Product Introduction
Technical Principle
1️⃣ Nano-filled Densification
Ultrafine nanoparticles fill the micro-pores in the matrix, reducing pore connectivity and minimizing heat conduction pathways, thereby lowering thermal conductivity.
2️⃣ Secondary Reaction
Reaction between active SiO₂ and Ca(OH)₂ generates additional C-S-H gel, enhancing structural density and high-temperature strength.
3️⃣ Pore Structure Optimization
Optimizing the internal microporous structure enhances air entrainment effects, improving overall thermal resistance performance.
Technical Specifications
| Physical Properties | Typical Values | Chemical Composition | Typical Values |
|---|---|---|---|
| Appearance | Gray powder | SiO₂ | > 92% |
| Primary Particle Size | 0.15 μm spheres | C | < 2.0% |
| Crystalline Form | Non-crystalline | Fe₂O₃ | < 1.0% |
| D50 | 0.552 μm | Al₂O₃ | < 1.0% |
| D90 | 2.272 μm | CaO | < 0.5% |
| Bulk Density | 280 kg/m³ | MgO | < 0.5% |
| Loss on Ignition (LOI) | < 3.0% | Na₂O | < 0.5% |
| Specific Surface Area (BET) | 15-30 m²/g | K₂O | < 0.5% |
| pH | 6.5 | *Test methods available upon request | *Typical values are for reference only and do not constitute quality standards. |
Material Characterization
Applications & Performance
Applications
》High-Temperature Nano Thermal Insulation Panels / Insulation Bricks
》High-Temperature Aerogel Composite Materials
》Nano Thermal Insulation Coatings / Lightweight Insulation Coatings
》High-Temperature Composite Insulation Systems
Performance Advantages
1. Reasonable pore size distribution suppresses thermal conduction of gas molecules (Knudsen effect)
2. >800°C, no structural collapse, no uncontrolled heat transfer
3. Thermal bridge impurity removal treatment, high system performance uniformity
Packaging & Logistics
Packaging Information
25 kg per bag, woven bag packaging
500 kg/ton bag
Customizable to meet customer requirements
Logistics Information
Delivery Time: 15-45 days
Minimum Order Quantity: 25 ton
Logistics Method: Sea Freight
Warehousing & Shipping: Nationwide warehousing with local distribution
Quality Control Process
1
Raw Material Inspection
2
Production Process Monitoring
3
Finished Product Sampling Inspection
Technical Support & Services
8-Hour Technical Hotline
Customized Solutions
Application Guide
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