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.

(hydrophobic fumed silica PDMS treated cas 67762-90-7 silicon dioxide powder coatings nano sio2 HB-139 free flow aid R202)

Specification of hydrophobic fumed silica PDMS treated cas 67762-90-7 silicon dioxide powder coatings nano sio2 HB-139 free flow aid R202

Hydrophobic fumed silica PDMS treated CAS 67762-90-7 is a high-performance silicon dioxide powder created for commercial applications. This nano SiO2 product goes through surface area alteration with polydimethylsiloxane (PDMS) to enhance its compatibility with organic systems. The treatment develops a water-repellent item ideal for usage in layers, adhesives, and polymer compounds. HB-139 complimentary circulation aid R202 works as a reliable anti-caking representative. It enhances powder flowability and prevents clumping in dry blends.

The key function of this hydrophobic silica is to serve as a rheology modifier. It manages thickness and provides thixotropic habits in fluid systems. In powder layers, it makes sure even distribution and reduces sagging throughout treating. The nano-scale bits boost area, improving support in rubber and plastic matrices. This item works well in silicone elastomers, paints, and materials.

Key specifications include a wager area varying from 100-200 m ²/ g. The typical fragment size remains between 7-40 nm. Loss on drying is commonly below 1.5% after two hours at 105 ° C. The pH value in a 4% aqueous diffusion drops between 5.5-7.5. PDMS therapy guarantees strong hydrophobicity with a wetness web content under 0.6%.

HB-139 R202 fulfills industry requirements for thermal stability. It endures temperature levels as much as 600 ° C without significant degradation. This makes it suitable for high-heat environments like vehicle coatings or digital encapsulants. The material is free-flowing and simple to spread, minimizing handling time in production.

Applications extend to inks, where it avoids clearing up and enhances print high quality. In cosmetics, it enhances appearance and controls oil absorption. The product is packaged in moisture-proof containers to preserve efficiency. Storage space referrals consist of keeping it in an awesome, dry place away from direct sunlight.

Safety guidelines recommend using protective gear during handling. Stay clear of breathing of dust fragments. The product is chemically inert under normal conditions yet need to not get in touch with strong acids or bases. Compatibility testing is recommended prior to large-scale usage. Bulk orders been available in 5 kg or 25 kg sealed bags with adjustable options.

(hydrophobic fumed silica PDMS treated cas 67762-90-7 silicon dioxide powder coatings nano sio2 HB-139 free flow aid R202)

Applications of hydrophobic fumed silica PDMS treated cas 67762-90-7 silicon dioxide powder coatings nano sio2 HB-139 free flow aid R202

Hydrophobic fumed silica PDMS treated (CAS 67762-90-7), likewise called silicon dioxide powder or nano SiO2, is a high-performance additive extensively made use of in industrial and commercial applications. This material, labeled HB-139 R202, functions as a free-flow aid to boost handling and processing in powder coverings and various other systems. Its surface treatment with polydimethylsiloxane (PDMS) provides it strong water-repellent homes, making it perfect for environments where moisture resistance is critical.

In powder layers, HB-139 R202 protects against clumping and guarantees smooth circulation during storage space and application. It lowers friction in between fragments, permitting even circulation on surface areas. This results in finishes with fewer flaws, far better surface high quality, and enhanced sturdiness. The nano-sized silica bits fill microscopic spaces, enhancing finish density and resistance to scratches or chemicals.

The material is effective in plastics and rubber production. It boosts processability by lowering dampness in raw polymer granules. This brings about quicker production cycles and much less devices downtime. The hydrophobic nature of the silica aids preserve product honesty in damp problems, avoiding wetness absorption that could compromise final products.

HB-139 R202 is used in adhesives and sealants to regulate thickness and protect against sagging. It makes sure constant application performance while keeping strong bonding toughness. The PDMS therapy boosts compatibility with organic matrices, making sure stable diffusion without resolving.

In cosmetics and individual treatment items, this silica powder offers a silky texture. It absorbs excess oils in formulations like foundations or sunscreens, improving spreadability and lowering sparkle. Its non-reactive nature makes it secure for skin contact, meeting market requirements for pureness.

The pharmaceutical sector uses hydrophobic fumed silica as an anti-caking agent in powders or tablets. It maintains components free-flowing during production and product packaging. Its inert residential properties guarantee no disturbance with energetic compounds, maintaining item efficacy.

HB-139 R202 satisfies stringent regulative requirements for commercial and consumer applications. Its flexibility throughout several sectors stems from its capability to enhance performance while dealing with usual difficulties like moisture sensitivity, bad flow, and inconsistent texture.

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 hydrophobic fumed silica PDMS treated cas 67762-90-7 silicon dioxide powder coatings nano sio2 HB-139 free flow aid R202

Hydrophobic fumed silica PDMS treated (CAS 67762-90-7) is a specialty silicon dioxide powder. It is surface-modified with polydimethylsiloxane (PDMS) to repel water. This nano SiO2 material (HB-139/R202) acts as a free-flow aid in powder coatings. It prevents clumping and improves handling.

1. What is hydrophobic fumed silica PDMS treated (CAS 67762-90-7)?
This is a high-purity silicon dioxide powder. It undergoes PDMS treatment to become water-repellent. The process creates a nano-scale surface layer. The result is a free-flowing powder ideal for moisture-sensitive applications.

2. Where is HB-139/R202 used?
It is used in powder coatings, inks, adhesives, and resins. It works as a flow enhancer. It reduces sticking between particles. It is suitable for industrial environments where humidity is high.

3. How does it improve powder flow?
The nano-sized SiO2 particles fill gaps between larger particles. This reduces friction. It stops powders from forming lumps. It ensures smooth application in coatings.

4. Is HB-139/R202 safe to handle?
Wear protective gloves and goggles. Avoid breathing dust. Store away from food. Follow standard chemical safety guidelines. Check the SDS for full details.

5. How should this product be stored?
Keep it in a dry, cool place. Seal the container tightly. Moisture degrades performance. Use within 24 months for best results.

(hydrophobic fumed silica PDMS treated cas 67762-90-7 silicon dioxide powder coatings nano sio2 HB-139 free flow aid R202)