Ultra-Fine Stable Dispersed Spherical Silica Micro-Powder

• Customization: Available
• Certification: ISO
• Application: Rubber, Plastic, Chemical, Construction, Metallurgy, Ceramic, Casting, Glass
• Model NO.: SQ
• Transport Package: Paper Bag, Big Bag, Pallet
• Specification: SiO2>99.9%
• Trademark: ST
• Origin: Lianyungang, China
• HS Code: 2811229000
• Production Capacity: 50000pieces/Year

Product Description

product information:

Spherical silica powder

The ultra-fine stable dispersed spherical silica micro-powder is a high-performance inorganic powder material prepared through advanced processes. It has a unique spherical morphology, ultra-fine particle size (sub-micron to nano level), and excellent dispersion stability. The surface of this product is specially modified and can be widely applied in fields such as electronic packaging, polymer composite materials, coatings, adhesives, ceramics, etc., significantly improving the mechanical properties, thermal conductivity, insulation, and processing fluidity of end products.
 

Core Features

Spherical Structure: High roundness of particles and smooth surface reduce stress concentration and enhance the fluidity and filling rate of materials.
Ultra-fine Particle Size: The D50 particle size range is controllable (0.5-50μm), with uniform distribution, providing a larger specific surface area and interfacial bonding force.
High Dispersibility: Surface modification treatment with excellent anti-agglomeration performance enables long-term stable dispersion in both water-based and oil-based systems.
Low Oil Absorption Value: Reduces the amount of matrix resin used, lowers the formulation cost, and improves the processing performance at the same time.
High Purity: The SiO2 content is ≥99.6%, with extremely low impurity content, meeting the requirements of high-end electronic applications.
Functional Adaptability: Customizable surface hydrophobic/hydrophilic treatment, particle size classification, and conductive/insulating functionalization.

• • • •  

Application Fields
 

• Electronic Packaging: Chip packaging adhesives, epoxy molding compounds, improving thermal conductivity and reducing the coefficient of thermal expansion.
  Composite Materials: Enhances the mechanical properties and wear resistance of engineering plastics and rubbers.
  Coatings/Inks: Improves the hardness, scratch resistance, and leveling property of the coating.
  Adhesives: Optimizes the bonding strength and reduces the curing shrinkage rate.
  Ceramic Materials: Promotes sintering densification and improves the mechanical strength of ceramic products.
  Thermal Conductive Interface Materials: Applied in high-efficiency thermal conductive scenarios such as 5G heat sinks and LED heat dissipation substrates.

Basic Parameters
 

Item	Unit	Typical Values
Exterior	/	white powder
Density	kg/m³	2.2 ×10^3
Moh's hardness	/	6
Coefficient of linear expansion	1/k	0.5×10^-6
Pyroconductivity	w/k.m	1.45
Refraction coefficient	/	/

 
 
1, content: Silica content 99%-99.9%
2,grain fineness distribution:  D50(0.5μm-50μm)       customization

Company Information:

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.

Workshop:
 

An excellent manufacturing enterprise

The company has 20 patents, the company has passed ISO9001 and ISO14001 certification, and has been recognized as a national high-tech enterprise