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.

(974 (Thickener) Silica Fumed silica Hydrophobic fumed silica)

Specification of 974 (Thickener) Silica Fumed silica Hydrophobic fumed silica

Item Call: 974 (Thickener) Hydrophobic Fumed Silica
974 (Thickener) Hydrophobic Fumed Silica is a high-performance additive crafted to boost viscosity, stability, and reinforcement in numerous commercial applications. This specialty silica is generated using flame pyrolysis of silicon tetrachloride, causing ultra-fine bits with a hydrophobic surface therapy, typically making use of silane or silicone substances. Its non-polar nature makes certain compatibility with organic systems, making it ideal for use in solvents, materials, and polymers.

** Trick Specifications: **.
– ** Chemical Composition: ** Amorphous silicon dioxide (SiO ₂), pureness ≥ 99.8%.
– ** Look: ** White, fluffy, agglomerated powder.
– ** Key Bit Size: ** 7– 40 nm (accumulations develop 3D networks).
– ** Area (BET): ** 150– 300 m ²/ g, making sure high reactivity and enlarging effectiveness.
– ** Hydrophobicity: ** Surface changed to push back water, lowering wetness absorption.
– ** pH (4% in water): ** 3.5– 5.5, depending on therapy.
– ** Loss on Drying (105 ° C): ** ≤ 1.5% (reduced wetness web content).
– ** Bulk Density: ** 40– 60 g/L (reduced thickness for easy diffusion).
– ** Ignition Loss (1000 ° C): ** ≤ 2.0%, mirroring thermal stability.

** Applications: **.
This hydrophobic fumed silica works as a rheology modifier in finishes, adhesives, sealants, and inks, providing droop resistance and anti-settling residential or commercial properties. It improves structure in cosmetics, ensures free-flowing habits in powders, and strengthens silicone rubber. Its compatibility with polar and non-polar matrices makes it appropriate for automotive, building, and electronic devices sectors.

** Performance Benefits: **.
– Boosts thixotropy and viscosity control without affecting clarity.
– Boosts mechanical toughness and resilience in compounds.
– Stabilizes formulas against stage separation.
– Withstands clumping and guarantees smooth application.

** Handling & Safety: **.
Prevent breathing of dust; usage PPE (gloves, masks, goggles). Store in a dry, great atmosphere (30 ° C) in secured containers. Adhere to regional laws for chemical handling. Safe yet may cause irritability upon straight call.

974 Hydrophobic Fumed Silica is a flexible remedy for requiring settings, offering chemical inertness, thermal resistance, and optimum efficiency at reduced loading degrees (0.5– 2% by weight). Its tailored hydrophobicity guarantees integrity in moisture-sensitive applications.

(974 (Thickener) Silica Fumed silica Hydrophobic fumed silica)

Applications of 974 (Thickener) Silica Fumed silica Hydrophobic fumed silica

974 (Thickener) Silica, fumed silica, and hydrophobic fumed silica are flexible materials with diverse industrial applications due to their one-of-a-kind physical and chemical homes. 974 Thickener Silica is a high-performance additive mostly utilized to regulate thickness and enhance texture in finishes, adhesives, and sealers. Its capacity to produce thixotropic habits– permitting materials to move under anxiety but continue to be secure at remainder– makes it excellent for preventing drooping in vertical paint applications or improving the spreadability of epoxy resins. It is also utilized in cosmetics, such as creams and gels, to supply smooth consistency without jeopardizing security.

Fumed silica, generated by means of flame pyrolysis of silicon tetrachloride, is valued for its high area and strengthening abilities. It works as a rheology modifier in silicone rubber, enhancing tensile toughness and durability in auto and building seals. In drugs, it improves powder circulation in tablet production, while in food, it avoids caking. Its ultra-fine fragments likewise serve as anti-settling agents in inks and coverings, making sure consistent dispersion of pigments.

Hydrophobic fumed silica, dealt with to fend off water, excels in moisture-sensitive settings. It is widely used in water-proof finishes and sealants for marine or outdoor applications, where resistance to humidity is vital. In adhesives, it stops early curing caused by ambient moisture. The product also improves the handling of plastics and composites by reducing jumble and boosting filler diffusion. Furthermore, it maintains oil-based systems, such as lubes and boring liquids in the oil and gas industry, and is included right into individual treatment products like sun blocks for waterproof formulas.

Together, these silica variants deal with challenges throughout sectors– from building and construction and automotive to drugs and cosmetics– by boosting efficiency, stability, and resilience popular problems. Their adaptability underscores their importance as multifunctional additives in contemporary manufacturing.

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 974 (Thickener) Silica Fumed silica Hydrophobic fumed silica

What is 974 Thickener (Hydrophobic Fumed Silica)? 974 Thickener is a hydrophobic fumed silica, a high-purity, nanomaterial produced by flame pyrolysis of silicon tetrachloride. Its surface is chemically treated to repel water, making it ideal for moisture-sensitive applications. It acts as a thickener, anti-settling agent, and rheology modifier in various formulations, enhancing viscosity and stability without reacting with water-based systems.

What are the main applications of hydrophobic fumed silica? It is widely used in coatings, adhesives, sealants, and elastomers (CASE) to improve viscosity and sag resistance. It’s also added to inks, cosmetics, and industrial resins for texture control. In construction, it reinforces cementitious materials, while in automotive and electronics, it provides stability to greases and encapsulants. Its hydrophobicity makes it suitable for outdoor or high-humidity environments.

How does hydrophobic fumed silica differ from hydrophilic fumed silica? Hydrophobic fumed silica is surface-modified to repel water, whereas hydrophilic silica has untreated hydroxyl groups that attract moisture. This makes hydrophobic grades better for non-polar systems (e.g., solvents, oils) as they disperse easily without clumping. Hydrophilic variants suit water-based applications but lack moisture resistance.

What safety precautions are needed when handling hydrophobic fumed silica? Avoid inhaling the fine powder, which may irritate the respiratory tract. Use PPE like masks, gloves, and goggles. Work in well-ventilated areas to minimize dust exposure. While non-toxic, prolonged skin contact should be avoided. Follow safety data sheet (SDS) guidelines for storage, disposal, and emergency measures.

How should hydrophobic fumed silica be stored, and what is its shelf life? Store in a cool, dry place, tightly sealed to prevent moisture absorption or contamination. Keep away from heat, sparks, and open flames. Shelf life is typically 12–24 months if unopened and stored properly. Post-opening, reseal containers immediately and avoid exposure to humid conditions to maintain performance. Do not use if discolored or clumped.

(974 (Thickener) Silica Fumed silica Hydrophobic fumed silica)