Hydrophilic fumed silica is a finely divided form of silicon dioxide (SiO2) that has been treated to enhance its affinity for water. It is produced through a process called fuming, where silicon tetrachloride is reacted in a high-temperature flame to form silica particles. These particles are then surface-treated to make them hydrophilic, meaning they have a strong attraction to water molecules.
Hydrophilic fumed silica possesses several unique characteristics that make it valuable in various industries. It has an extremely high surface area, which allows it to absorb and retain large amounts of water, making it useful as a moisture control agent. It can also act as a thickening agent, improving the viscosity and texture of liquid formulations.
Due to its fine particle size and large surface area, hydrophilic fumed silica can also serve as a reinforcing filler, enhancing the mechanical properties of rubber and plastic materials. It provides reinforcement and improves tear strength, abrasion resistance, and dimensional stability.
In the pharmaceutical and cosmetic industries, hydrophilic fumed silica is used as a flow aid, viscosity modifier, and suspension agent in various formulations such as tablets, creams, lotions, and gels. It helps to improve the stability, texture, and performance of these products.
Furthermore, hydrophilic fumed silica finds applications in adhesives, sealants, coatings, paints, and other industrial products where it contributes to rheology control, anti-settling properties, and improved overall performance.
In summary, hydrophilic fumed silica is a versatile and valuable material with hydrophilic properties. It is used to control moisture, enhance viscosity, reinforce materials, and improve the performance of a wide range of products across industries.
1. High surface area: Hydrophilic fumed silica has an extremely high surface area, which enables it to interact and absorb large amounts of water or other liquids. This property makes it useful for moisture control and absorption applications.
2. Hydrophilic nature: As the name suggests, hydrophilic fumed silica exhibits a strong affinity for water. Its surface has been treated to enhance its interaction with water molecules, allowing it to disperse easily in aqueous systems and form stable suspensions.
3. Thixotropic behavior: Hydrophilic fumed silica demonstrates thixotropic behavior, meaning its viscosity decreases under shear stress and increases when at rest. This property contributes to its effectiveness as a thickening and stabilizing agent in various formulations.
4. Rheology control: It offers excellent control over the rheological properties of liquid systems. By adjusting the concentration and dispersion of hydrophilic fumed silica, the flow characteristics, viscosity, and texture of formulations can be modified to achieve desired outcomes.
5. Reinforcing properties: Hydrophilic fumed silica serves as a reinforcing filler, improving the mechanical properties of materials such as rubber and plastic. It enhances tensile strength, tear resistance, and dimensional stability.
6. Compatibility: Hydrophilic fumed silica is compatible with a wide range of substances, including water, solvents, and various organic and inorganic materials. This versatility allows for its integration into diverse formulations and products.
7. Stability: It provides stability to suspensions and emulsions by preventing settling or separation of components. This feature helps maintain the integrity and performance of products over time.
8. Versatility: Hydrophilic fumed silica finds applications in multiple industries, including pharmaceuticals, cosmetics, adhesives, coatings, and more. Its multifunctional nature makes it a valuable additive with a broad range of uses.
1. Pharmaceuticals
It is used as a flow aid, viscosity modifier, and suspension agent in tablet formulations, oral liquids, ointments, and creams. It improves stability, flow characteristics, and texture in pharmaceutical products.
2. Cosmetics and Personal Care
Hydrophilic fumed silica acts as a thickening agent, stabilizer, and suspension aid in creams, lotions, gels, and other cosmetic formulations. It enhances texture, provides a smooth feel, and prevents settling of ingredients.
3. Adhesives and Sealants
It improves thixotropic behavior, viscosity control, and bonding strength in adhesives and sealants. Hydrophilic fumed silica enhances sag resistance and adhesion properties, ensuring efficient application and long-lasting performance.
4. Coatings and Paints
It serves as a rheology modifier, anti-settling agent, and thickener in coatings and paints. Hydrophilic fumed silica improves viscosity control, dispersion, and leveling properties, contributing to smooth and uniform coatings.
5. Rubber and Plastics
It acts as a reinforcing filler in rubber and plastic materials, enhancing mechanical properties such as tear strength, abrasion resistance, and dimensional stability. Hydrophilic fumed silica improves the processability and performance of rubber and plastic compounds.
6. Catalyst Supports
Hydrophilic fumed silica provides a high surface area and excellent dispersion properties, making it suitable as a support material for catalysts in various chemical processes.
7. Food and Beverages
It is used as an anti-caking agent, viscosity modifier, and stabilizer in food and beverage applications. Hydrophilic fumed silica enhances the flowability, texture, and stability of powdered mixes, sauces, and beverages.
8. Energy Storage
It finds applications in lithium-ion batteries as a conductive additive and rheology modifier, improving battery performance and stability.
|
Grades |
HFS-150 |
HFS-200 |
HFS-300 |
HFS-380 |
|
Specific Surface Area (BET) |
150±15 m²/g |
200±20 m²/g |
300±25 m²/g |
380±30 m²/g |
|
pH value in 4% dispersion |
3.9-4.5 |
3.9-4.5 |
3.7-4.5 |
3.7-4.5 |
|
Loss on drying (2 hours at 105ºC) |
≤1.5% |
≤2.0% |
≤2.0% |
≤2.5% |
|
Loss on ignition(2 hours at 1000ºC based on material dried for 2 hours at 105ºC) |
≤2.0% |
≤2.0% |
≤2.5% |
≤2.5% |
|
Sieve Residue(45μm) |
≤250mg/kg |
≤250mg/kg |
≤250mg/kg |
≤250mg/kg |
|
Silica Content(Based on ignited material) |
≥99.8% |
≥99.8% |
≥99.8% |
≥99.8% |
| Tap Density(Based on material dried at 105ºC for 2 hours) |
40-60g/dm³ |
40-60g/dm³ |
40-60g/dm³ |
40-60g/dm³ |
| Typical Applications |
1.HTV and RTV Silicone rubber
2.Adhesives and Sealants
3.Coatings and Paintings |
1.Coatings & Paintings
2.Adhesives & Sealants
3.HTV&RTV Silicon Rubbers
4.Thin Film & UPR
5.Printing Ink
6.Fertilizer & Pesticide
7.Cosmetics |
1.Coatings & Paintings
2.Silicone rubber and Other elastomers
3.Thin Film & UPR
4.Adhesives and Sealants
5.Printing ink |
1.Coatings & Paintings
2.Silicone rubber and Other elastomers
3.UPR
4.Adhesives and Sealants
5.Printing ink |
Beijing Entrepreneur Science & Trading Co., Ltd. was established in the year 2001. We are focused on import and export business of high-quality specialty chemicals. Since its establishment, relying on diligent efforts, spirit of enterprising and professional services, the company has established extensive cooperation with world-famous chemical manufacturers and gained a good reputation in China chemical industry.
We have stable distribution cooperation with world leading suppliers from America, Europe, Japan and Taiwan. We are distributors of Ames Advantage Material, Novamet, Lanxess, Momentive, Potters, Rhodia, Roquette, Oerlikon Metco, Inovyn, KJ Chemical, Tokuyama, Mitsubishi Chemical, Chang Chun Group, etc.
Our products selling in China include Conductive Powder, Thermal Conductive Powder, Microwave Absorbing Powder, Acrylamide Functional Monomer and Special UV Monomer, Special Epoxy Resin, Mercaptan Curing Agent, Silane, Fumed Silica and Precipitated Silica, PVC Paste Resin, PVA, Carbon Black, Modified Starch, Photocatalyst, Formaldehyde Capture agent, Root Blocking Agent, Platinum Catalyst, Vinyl Silicone Oil, Surfactant, etc.
In 2014, the company entered the chemical export business. Based on our understanding of China chemical market, we select most qualified suppliers. We are able to source raw materials directly from factories. Most of our partners are the largest factory in China with over 20 years history. They have huge annual outputs, and hold ISO9001, ISO14001, GMP, KOSHER, HALAL, FDA, GSP, etc. certificates.
Our export products include Conductive Powder, Thermal Conductive Powder, Plant Extract, Inorganic Powder, Plasticizer, PVC Paste Resin, Silane, Flavors and Fragrances, Salen Catalysts and Ligands, Organic Intermediates, Pharmaceutical Intermediates.
We are proud to serve industries such as coating, ink, sealant, industrial, cosmetics, conductive powder, thermal conductive powder, pharmaceutical, flavor & fragrance, aroma, as well as many others.
We will support our customers in a continuous way in the following:
1. Timely feedback to inquiry within 24 hours
2. Pre-sales consultancy
3. Supply samples
4. Competitive price
5. Good packaging
6. Timely delivery
7. Small order is available
8. Good after sales services
9. Provide TDS, COA, commercial invoice, packing list and certificate of origin. Special requirements also could be discussed and met.
Can I request samples?
Yes, absolutely! We offer free samples of specified quantities. You only need to cover the freight charges.
Which documents are provided?
We provide essential documents such as Certificate of Analysis (COA), Technical Data Sheet (TDS), Material Safety Data Sheet (MSDS), and more upon request.
What is your Minimum Order Quantity (MOQ)?
Typically, our MOQ is one standard package. However, we understand the importance of testing before committing to a mass order, so we offer free samples for your evaluation.
How do you ensure the quality of your products?
We prioritize quality assurance through several measures:
1. Expert Staff: Our team comprises professionals with extensive experience in chemical products or related fields. They undergo comprehensive training before providing any quotations.
2. Sample Availability: We offer free samples or pre-shipment samples for new collaborations, ensuring that our commercial products match the specifications provided to customers.
3. Third-Party Inspection: Upon request, we can arrange Third-Party Inspections, such as SGS, to further validate the quality of our products before shipping.
How do I make payments?
Once you receive the Proforma Invoice (PI) along with our product specifications, you can proceed with payment. We accept various payment methods including Telegraphic Transfer (T/T), Letter of Credit (LC), and more.
What is your after-sales service like?
At Beijing Entrepreneur Science & Trading Co., Ltd., we prioritize fostering long-term relationships with all our customers. For every order, we ensure transparency and commitment by signing a legally binding sales contract. Should you have any doubts or concerns regarding our products or services, please do not hesitate to contact us. Your satisfaction and trust are our top priorities.
Can I use my own label or packaging?
Absolutely. If required, we can use labels or packaging according to your specifications and preferences. Your branding and packaging needs are important to us, and we'll ensure they are met to your satisfaction.
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