Overview of Fumed Silica

Fumed silica, also known as pyrogenic silica, is an ultra-fine, high-purity amorphous silicon dioxide (SiO2) produced via the combustion of silicon tetrachloride in an oxygen-hydrogen flame. It appears as a fluffy white powder and is valued for its ability to thicken, stabilize, and reinforce materials.

Features of Fumed Silica

• High Surface Area: Typically ranges from 50 to 380 m²/g, providing excellent thickening and reinforcing properties.
• Hydrophilic or Hydrophobic Variants: Available in both forms depending on surface treatment, allowing for tailored applications.
• Excellent Thixotropy: Increases viscosity and improves flow properties of liquids and pastes.
• Chemical Inertness: Resistant to most chemicals, making it suitable for a wide range of industrial uses.

•  Enhances free-flowing properties and stability.

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Specification of Popular Fumed Silicon Dioxide Colloidal Nano Silica Hydrophobic Hydrophilic SiO2 Fumed Silica

Fumed silicon dioxide, referred to as colloidal nano silica or fumed silica, is a great white powder constructed from high-purity SiO2. Suppliers produce it by melting silicon tetrachloride in hydrogen-oxygen flames. This creates tiny, nanometer-sized bits with solid surface task. The material is available in two types: hydrophobic and hydrophilic. Hydrophobic fumed silica wards off water. It is treated with silane to lower moisture absorption. Hydrophilic fumed silica draws in water. It works well in water-based systems.

The particle size ranges from 7 to 40 nanometers. This nano-scale framework gives it a large area, usually in between 50 and 400 square meters per gram. High surface area enhances support, enlarging, and security in products. The pureness level exceeds 99.8%, making it suitable for delicate applications like pharmaceuticals or electronics.

In coverings and paints, fumed silica serves as a thickener. It stops sagging or dripping throughout application. In adhesives and sealants, it enhances viscosity and stops settling of fillers. For silicone rubber, it enhances toughness and heat resistance. The hydrophobic type is ideal for water resistant finishings or cable compounds. The hydrophilic type operates in gels, cosmetics, or food additives.

In pharmaceuticals, fumed silica controls powder flow. It stops tablets from sticking during manufacturing. In plastics, it boosts handling and decreases shrinkage. The product is chemically inert. It withstands high temperatures and UV radiation.

Proper handling is essential. The powder is non-toxic however requires safety gear to avoid inhalation. Storage space needs to be in dry, awesome conditions. Dampness can clump hydrophobic grades.

Producers tailor fragment dimension, surface treatment, and surface area to fulfill details demands. This adaptability makes fumed silica a vital additive throughout industries. Its role in boosting item efficiency ensures need stays stable in industries like building, automotive, and medical care.

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Applications of Popular Fumed Silicon Dioxide Colloidal Nano Silica Hydrophobic Hydrophilic SiO2 Fumed Silica

Fumed silicon dioxide, called colloidal nano silica or fumed silica, is a functional material made use of in several markets. It comes in hydrophobic and hydrophilic types, each matched for details applications. The small fragment dimension and high area offer it unique properties, making it valuable for boosting item efficiency.

In finishes and paints, hydrophobic fumed silica functions as a thickening representative. It protects against drooping on vertical surface areas and improves resistance to water and rust. Hydrophilic fumed silica assists maintain fluid formulas, guaranteeing also circulation of pigments. Both types increase sturdiness and weather condition resistance in vehicle and industrial coatings.

Adhesives and sealants rely on fumed silica to control circulation and prevent settling. Hydrophobic versions decrease wetness absorption, ideal for outside or high-humidity atmospheres. Hydrophilic kinds enhance bonding in products like silicone sealants. The result is more powerful, longer-lasting bonds in building and construction and electronics.

Pharmaceuticals use hydrophilic fumed silica as a flow aid in powder formulations. It ensures regular blending and stops clumping in tablets or capsules. Hydrophobic qualities are contributed to lotions for water resistance, improving shelf life. Both types meet rigorous safety requirements, making them safe for clinical use.

Cosmetics gain from fumed silica’s capability to change texture. It thickens creams, takes in oils in foundations, and provides sunscreens a smooth coating. Its fine bits spread light, minimizing shine without sensation heavy on skin.

Construction products like concrete and cement make use of fumed silica to enhance strength and decrease fracturing. It fills spaces in between bits, creating denser structures. Hydrophobic silica protects versus water damages in waterproofing items.

In electronics, fumed silica insulates components and takes care of heat in adhesives. Its purity stops contamination in semiconductor production.

Fumed silica’s flexibility makes it necessary across markets. Its function in improving item quality and performance makes certain widespread usage in daily and industrial applications.

Company Introduction

Welcome to HiphopGalaxy, a trusted global supplier of high-quality silicon dioxide (SiO2) powder, renowned for its exceptional purity and performance. Established with a vision to deliver cutting-edge materials that meet the diverse needs of modern industries, we have positioned ourselves as a leading player in the international market.

Our SiO2 powders find applications across multiple sectors, including adhesives, coatings, pharmaceuticals, cosmetics, polymers, and electronics. Each application benefits from the unique properties of our products—high surface area, excellent thixotropy, chemical inertness, and superior reinforcement capabilities. Whether you need hydrophilic or hydrophobic variants, we offer tailored solutions to meet your specific requirements.

If you have any questions, please feel free to contact us(nanotrun@yahoo.com).

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

5 FAQs of Popular Fumed Silicon Dioxide Colloidal Nano Silica Hydrophobic Hydrophilic SiO2 Fumed Silica

What is fumed silicon dioxide? Fumed silicon dioxide, also called colloidal nano silica or fumed silica, is a fine white powder made by burning silicon tetrachloride in a flame of hydrogen and oxygen. This process creates tiny particles with high surface area. It works as a thickener, anti-caking agent, and reinforcement filler. Industries like coatings, adhesives, and pharmaceuticals use it widely.

What’s the difference between hydrophobic and hydrophilic fumed silica? Hydrophobic fumed silica repels water. It’s treated with chemicals like silanes to block moisture absorption. This type suits applications needing water resistance, like silicone rubber or coatings. Hydrophilic fumed silica attracts water. It’s untreated, making it ideal for water-based systems like gels or paints where moisture absorption helps performance.

Where is fumed silica commonly used? Fumed silica adds thickness, stability, and strength. In paints, it prevents sagging. In adhesives, it controls flow. Food uses it to stop powders from clumping. Pharmaceuticals rely on it to bind tablets. Electronics apply it for insulation in components. Its versatility makes it popular across many fields.

Is fumed silica safe to handle? Fumed silica is non-toxic but requires care. Inhalation of fine dust may irritate lungs. Use gloves and masks when handling. Avoid direct contact with eyes or skin. Follow safety guidelines for storage and disposal. Proper handling reduces risks.

How should fumed silica be stored? Store it in a dry, cool place away from moisture. Keep containers tightly sealed. Exposure to humidity causes clumping in hydrophilic types. Hydrophobic types resist moisture but still need airtight storage. Shelf life typically exceeds two years if stored correctly. Check for lumps or discoloration before use.

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