IOTA Silicone Oil（Anhui） Co., Ltd.
Hits: 467 img
In the field of material surface functional modification, how to achieve durable waterproofing without compromising the material's original properties has always been a key technical challenge. IOTA 2520 Carboxy Silicone Oil—based on a carboxy-terminated polydimethylsiloxane structure—provides you with a systematic solution for leather, textiles, and polymer systems, thanks to its unique reactivity and versatile compatibility.
Forms chemical bonds with polar surfaces such as chrome-tanned leather through carboxyl groups, achieving long-lasting, wash-resistant waterproofing—far superior to physical adsorption coatings.
Imparts excellent water repellency to polar surfaces while maintaining breathability and tactile feel.
Acts as a chain extender for condensation polymerization reactions such as polyester and polyamide, embedding silicone segments into the polymer backbone.
Gives polymers excellent silicone properties such as anti-stick, wear resistance, scratch resistance, and anti-blocking.
Compatible with pigments and fillers, improving their dispersion and bonding in organic polymers.
Resistant to acid, alkali, and shear, suitable for various processing environments.
Non-yellowing, suitable for white and light-colored leather, textiles, and products.
| Parameter | Specification |
|---|---|
| Appearance | Light yellow transparent liquid, free of mechanical impurities |
| Viscosity (25°C) | 250 mPa·s |
| Acid Value | 45 mg KOH/g |
| Active Content | >98.5% |
| Ionic Nature | Non-ionic |
Added during the chrome-tanning process to achieve long-lasting waterproofing.
Imparts a smooth feel and certain hydrophobic breathability to leather.
Does not affect dyeing or finishing, suitable for high-end leather products.
Used in fabric finishing to provide a smooth feel while enhancing hydrophilic properties.
Suitable for functional fabrics such as sportswear and underwear that require moisture-wicking.
Acts as a reactive chain extender for polyesters and polyamides, introducing silicone segments.
Significantly improves the processability, surface properties, and durability of polymers.
Treats inorganic pigments and fillers to improve their compatibility with polymer matrices.
Enhances the performance and stability of composite materials.
Leather Waterproofing: Add during the mid or late stages of chrome tanning at 0.5% - 2% of leather weight.
Textile Finishing: Compound with other finishing agents at 1% - 3% of fabric weight.
Polymer Chain Extension: Calculate based on target molecular weight and silicone content, typically 0.1% - 2% of total monomers.
Filler Surface Treatment: Use 0.5% - 3% of filler weight, added during the dispersion process.
Packaging Specifications: 190 kg / 950 kg drum packaging.
Storage Conditions: Store in original sealed containers at -20°C to 50°C.
Shelf Life: 24 months from the production date.
Precautions: Avoid prolonged exposure to high temperatures in open containers. Perform activity testing before use.
IOTA 2520 is not just a product; it is a reactive functionalization platform:
Provides technical support for application processes.
Can adjust viscosity and acid value ranges based on requirements.
Assists in developing customized functional finishing solutions.
Make Waterproofing Last Longer, Make Materials Smarter.
IOTA 2520 Carboxy Silicone Oil – Using the Power of Chemical Bonding to Build the Functional Future of Materials.
