What is HJSIL Fumed Silica R274?

December 27, 2024

HJSIL Fumed Silica R274 Display

Particle Size and Structure:

Fine Particles: HJSIL R274 consists of very fine silica particles, typically ranging from 5 to 40 nanometers in diameter, giving it a high surface area (often around 200 to 325 m²/g).

Amorphous Structure: The structure of fumed silica is amorphous, meaning it does not have a defined crystalline structure. This contributes to its unique physical and chemical properties.

Physical Properties:

Lightweight: Due to its low bulk density, R274 acts as an efficient filler in various formulations.

High Surface Area: The high surface area enhances its effectiveness in applications involving thickening, reinforcing, and anti-caking.

Thixotropic Properties:

HJSIL R274 exhibits thixotropic behavior, meaning it can alter its viscosity depending on shear conditions. This property is particularly useful in formulations where a change in viscosity with mixing or application is desired.

Reinforcement:

It improves the mechanical properties of materials, including polymers, coatings, and adhesives, by enhancing strength, durability, and resistance to wear.

Versatile Applications:

HJSIL R274 is used in a range of industries, including:

Cosmetics and Personal Care: As a thickening agent and to improve texture in creams and lotions.

Pharmaceuticals: For use in tablet formulations and as a flow agent.

Coatings: To improve the durability and wear resistance of Paints And Coatings.

Adhesives and Sealants: As a reinforcing agent to enhance bond strength.

Low Oil Absorption:

The silica tends to have low oil absorption, making it cost-effective by maximizing filler loading without significantly increasing formulation costs.

Chemical Properties:

pH Neutral: HJSIL R274 typically has a neutral pH, making it compatible with a wide range of formulations without affecting their chemical stability.

Hydrophobic and Hydrophilic Forms: Depending on the treatment, R274 can be modified to exhibit either hydrophobic or hydrophilic characteristics, enhancing its versatility for different applications.

Author:

Mr. Wen Yuan

Phone/WhatsApp:

++86 15639100440