Product Overview
This product is made from high-purity fused silica powder (SiO2 ≥ 99%) and treated with epoxy resin surface modification, offering excellent dispersibility, interfacial bonding strength, and mechanical reinforcement. The particle size range (D50) can be customized from 0.5μm to 50μm, making it widely applicable in high-end composite materials, electronic packaging, specialty coatings, and other fields. It significantly enhances mechanical strength, heat resistance, and dielectric properties.
Key Parameters
| Parameter | Value/Description |
| Purity | ≥99% (actual measurement up to 99.5%) |
| Particle Size (D50) | 0.5μm-50μm (custom grading available) |
| Whiteness | ≥92% (ISO 2470 standard) |
| Oil Absorption | 28-35g/100g (optimized after modification) |
| Dielectric Constant | 3.8-4.2 (at 1MHz) |
| Thermal Expansion Coefficient | 0.5×10-6/ºC (20-300ºC) |
| Moisture Content | ≤0.3% (105ºC drying method) |
Product Advantages
Dual Composite Modification: Fused silica powder + epoxy resin synergistic modification, solving the agglomeration issue of traditional fillers
Precise Particle Size Control: Laser particle size analyzer for real-time monitoring, supporting full-range production from 0.5μm ultrafine powder to 50μm coarse powder
Significant Performance Enhancement: Increases composite material flexural strength by over 40% and heat deflection temperature by 30-50ºC
Eco-Friendly Process: No wastewater or exhaust emissions, compliant with GB 31571-2015 air pollutant emission standards
Typical Applications
▸ Electronic Packaging: IC encapsulation adhesives, LED potting compounds, PCB substrate fillers
▸ Composite Materials: Epoxy resin/silicone rubber reinforcement, aerospace components
▸ Specialty Coatings: High-temperature anti-corrosion coatings, insulating coatings
▸ Precision Casting: 3D printing materials, ceramic mold reinforcements
Technical Support
Free particle size distribution test report
Optimization of additive ratios based on customer formulations
Modification process guidance (applicable to epoxy/phenolic/polyurethane systems)
Packaging & Storage
Standard Packaging: 25kg/bag (customizable)
Special Packaging: 1kg vacuum-sealed samples available
Storage Conditions: Cool and dry place, avoid moisture (recommended humidity ≤60%)
Jiangsu Shengtian New Materials Co., Ltd. has a technical research and development team focusing on ultra-fine powder materials, and has strong strength in the research and development and production of ultra-fine functional materials, composite materials and related applications,and has become a more influential high-tech enterprise in the ultra-fine functional powder industry.
The company's products include crystalline silicon powder, molten silicon powder, soft composite silicon powder, spherical silicon powder, aluminum oxide powder, ceramic powder, glass powder and other ten categories, nearly 100 kinds of different specifications of products, and has a strong modification, compounding and other follow-up deep processing technology and capabilities. The products are processed by special technology, the production technology is leading and innovative, and the introduction of international technical standards for similar products, widely used in electronic packaging, copper clad plate, ink coating, adhesive, ceramics, precision casting, glass fiber, plastic rubber and other industries, giving its functionality while helping customers reduce costs. And provide the overall application of technology solutions.The company has more than 20 different types of production lines, more than 100 sets of domestic advanced equipment, with an annual output of 50,000 tons. The company adopts professional production and testing equipment and formulates strict production quality control system to conduct all-round control of product quality. All products of the company have passed SGS environmental protection testing, in line with the EU ROHS green environmental protection standards. The company took the lead in the silicon powder industry through the ISO9001 quality management system certification and ISO14001 environmental management system certification, has passed the high-tech product identification. The company's products and solutions have been applied to more than 160 enterprises around the world, including more than 80 customers with stable cooperation for more than 10 years.
Company Information:
