AKTISIL MM is a specialized functional filler used in paint and varnish applications, designed to enhance various properties of the formulations it is added to. Here’s a detailed overview:
Description:
AKTISIL MM is derived from activated SILLITIN Z 86 by surface modification with mercapto functional groups. This process ensures that by-products from the modification reaction are minimized, leading to improved stability and performance in paint formulations.
Characteristics:
- Appearance: Free-flowing powder
- Color (CIELAB scale): L* 93.8, a* 1.1, b* 10.3
- Volatile Matter (at 105°C): 0.7%
- Density: 2.6 g/cm³
- Particle Size Distribution:
- Oil Absorption: 45 g/100 g
- Refractive Index (n): 1.55
- Shelf Life: 3 years if stored properly under dry conditions
Applications:
AKTISIL MM is used as a functional filler in various binder systems, particularly those that utilize reactive groups with active hydrogen or undergo polymerization/curing processes. It is suitable for:
- Binder Systems:
- Amine-type or carboxylic anhydride-cured epoxy resins
- Polyurethane (TPU) systems
- Polysulfide systems
- Acrylic acid polymers
- Melamine and UF resins
- Phenol formaldehyde resins
Fields of Application:
- Paints and Varnishes: Used in high-grade industrial paints, stoving paints/enamels, anti-corrosive coatings, and coatings requiring high chemical resistance.
- Adhesives: Reactive adhesives and sealing compounds.
- Other Applications: Including embedding compounds and reactive systems requiring enhanced mechanical properties and chemical resistance.
Benefits:
AKTISIL MM provides several advantages over its base material, SILLITIN Z 86:
- Improved wettability, even with low polarity binders.
- Reduction of yield point with high solids content, improving viscosity control.
- Increased tensile strength, bending strength, and impact resistance.
- Enhanced abrasion resistance, scratch resistance, and chemical/moisture resistance.
- Improved anti-corrosion properties and swelling characteristics.
Reaction Model:
AKTISIL MM can react with:
- Isocyanate groups (in PUR systems)
- Epoxy groups of resin (in epoxy systems)
Conclusion:
AKTISIL MM serves as a versatile additive that enhances the performance of paint and varnish formulations, contributing to improved durability, application properties, and overall quality of coatings in various industrial applications. Its tailored surface modification ensures compatibility and effectiveness across a wide range of binder systems and application scenarios.
