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.

(Runhuabang amorphous nano sio2 silicon dioxide fumed silica for paints rubber defoamer)

Specification of Runhuabang amorphous nano sio2 silicon dioxide fumed silica for paints rubber defoamer

Runhuabang amorphous nano SiO2 silicon dioxide fumed silica is a high-performance product made for applications in paints, rubber, and defoamers. This ultrafine, artificial silica is created via a high-temperature hydrolysis process, resulting in a highly pure, amorphous framework with exceptional surface area and sensitivity. Its nano-sized fragments and three-dimensional network boost product efficiency by boosting viscosity, reinforcement, and stability.

** Secret Specs: **.
– ** Appearance: ** White, fluffy, amorphous powder.
– ** SiO2 Material: ** ≥ 99.8%, ensuring very little pollutants.
– ** Bit Size: ** Main particles typical 7– 40 nm, forming aggregates of 200– 500 nm.
– ** Surface: ** 200 ± 25 m ²/ g (wager approach), giving high adsorption and sensitivity.
– ** pH Value: ** 3.7– 4.5 (4% aqueous dispersion), ideal for acid-stable formulas.
– ** Loss on Drying (105 ° C, 2h): ** ≤ 1.5%, indicating low moisture material.
– ** Mass Thickness: ** 30– 60 g/L, using low-density handling benefits.
– ** Tamped Density: ** 50– 90 g/L.

** Applications: **.
– ** Paints & Coatings: ** Acts as a rheology modifier, anti-settling representative, and thickener. Boosts suspension, leveling, and abrasion resistance. Boosts toughness and UV resistance in outdoor finishings.
– ** Rubber & Elastomers: ** Enhances mechanical residential or commercial properties (tensile toughness, tear resistance) while minimizing thickness for much easier processing. Made use of in tires, seals, and commercial rubber items.
– ** Defoamers: ** Stabilizes foam control systems in water-based and solvent-based formulations. Reduces surface area tension and interrupts foam stability effectively.

** Advantages: **.
– High purity and nano-scale diffusion guarantee uniform efficiency.
– Adjusts rheology without affecting color or openness in clear finishes.
– Improves thermal stability and chemical resistance in rubber substances.
– Improves defoaming efficiency with minimal impact on formula thickness.

** Handling & Storage Space: ** Shop in a dry, amazing setting away from wetness. Use protective equipment to stay clear of breathing throughout handling. Suitable with a lot of industrial solvents and polymers.

Runhuabang fumed silica is a functional additive that maximizes product efficiency across markets, using reliability, effectiveness, and versatility to diverse solution requirements.

(Runhuabang amorphous nano sio2 silicon dioxide fumed silica for paints rubber defoamer)

Applications of Runhuabang amorphous nano sio2 silicon dioxide fumed silica for paints rubber defoamer

Runhuabang amorphous nano SiO ₂ silicon dioxide (fumed silica) is a high-performance product engineered to improve the functionality and sturdiness of products throughout sectors such as paints, rubber, and defoamers. Its special homes, including high area, nano-scale particle size, and amorphous framework, make it a flexible additive for enhancing performance sought after applications.

** In Paints and Coatings: ** Runhuabang fumed silica serves as a rheology modifier, offering superb anti-settling and anti-sagging residential or commercial properties. It enhances paint thickness, guaranteeing also distribution and secure suspension of pigments. The nano-sized particles form a three-dimensional network, improving film toughness, scratch resistance, and weather condition resilience. Its hydrophobic nature decreases water absorption, stopping blistering or peeling in moist settings. In addition, it improves UV resistance, making finishings suitable for outside applications. The ultra-fine particles likewise add to a smooth coating, lowering surface problems.

** In Rubber Products: ** As a strengthening filler, Runhuabang fumed silica significantly increases the mechanical buildings of rubber. It boosts tensile stamina, tear resistance, and abrasion resilience, extending the lifespan of tires, seals, and commercial rubber parts. The nano-SiO ₂ boosts heat dissipation, lowering thermal deterioration in high-stress applications. Its compatibility with silicone rubber makes sure far better crosslinking performance, improving flexibility and compression established resistance. The material additionally aids in handling by lowering sticking during molding and extrusion.

** In Defoamers: ** Runhuabang fumed silica is an essential part in high-efficiency defoamers. Its nano-porous framework undercuts foam by breaking surface area tension and accelerating bubble collapse. It makes certain quick defoaming in water-based and solvent-based systems, also under high-temperature or high-shear problems. The product’s chemical inertness enables compatibility with diverse formulas, including paints, adhesives, and commercial cleaner. Its reduced dose need and lasting efficiency decrease operational expenses.

Runhuabang’s fumed silica attracts attention for its pureness, controlled fragment size circulation, and customized surface area therapies, guaranteeing consistent results. Whether enhancing paint toughness, strengthening rubber, or removing foam, this product supplies unequaled performance, making it a relied on selection for markets prioritizing quality and efficiency.

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 Runhuabang amorphous nano sio2 silicon dioxide fumed silica for paints rubber defoamer

**What is Runhuabang amorphous nano SiO2 silicon dioxide fumed silica?**
Runhuabang amorphous nano SiO2 silicon dioxide fumed silica is a high-purity, synthetic silica produced through a vapor-phase hydrolysis process. It consists of ultrafine, spherical nanoparticles with a large surface area and strong hydrophobicity or hydrophilicity, depending on treatment. This material is widely used as a rheology modifier, thickener, anti-settling agent, and defoamer in paints, coatings, rubber, and industrial applications due to its exceptional stability and reinforcing properties.

**What are the key applications in paints and rubber?**
In paints, it acts as a thixotropic agent to prevent sagging, improve leveling, and enhance storage stability. For rubber, it reinforces mechanical properties like tensile strength and abrasion resistance. As a defoamer, it breaks down foam in water-based systems by destabilizing bubble structures. It’s also used in adhesives, sealants, and plastics for similar rheological and performance benefits.

**How does it improve paint performance?**
The nano-sized particles form a three-dimensional network in paint, creating shear-thinning behavior. This ensures viscosity stability during application, reduces dripping, and improves pigment suspension. Its high surface area enhances adhesion and durability while minimizing defects like cracking. Additionally, its defoaming properties prevent air entrapment during mixing or application, ensuring a smooth finish.

**Why is it preferred in rubber manufacturing?**
Runhuabang fumed silica improves rubber’s mechanical strength, elasticity, and heat resistance by filling gaps between polymer chains. It reduces rolling resistance in tires, enhances wear resistance, and improves processing by reducing sticking during extrusion or molding. Its nano-scale dispersion ensures uniform reinforcement without compromising flexibility or transparency in silicone rubber products.

**Is it safe to handle and store?**
Yes, but proper precautions are necessary. As a fine powder, avoid inhalation by using masks and ensure ventilation. Store in a dry, cool area away from moisture to prevent clumping. It’s chemically inert and non-toxic but may cause irritation on direct contact—use gloves and protective gear. Compliance with local safety regulations (e.g., SDS guidelines) is recommended for handling and disposal.

(Runhuabang amorphous nano sio2 silicon dioxide fumed silica for paints rubber defoamer)