This page explains how Silicone Micropowders is classified within Chemical Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
Fine particulate silicone-based materials with controlled particle size distribution for industrial applications.
Technical details and manufacturing context for Silicone Micropowders
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Particle Size D50Required | 15–60 μm | Median particle diameter where 50% of particles are smaller and 50% are largerISO 13320 |
| Particle Size DistributionRequired | D90/D10 ≤ 5 μm | Range of particle sizes typically expressed as D10, D50, D90 valuesISO 13320 |
| Specific Surface AreaRequired | 1.5–3.5 m²/g | Total surface area per unit mass of powderISO 9277 |
| Bulk DensityRequired | 0.15–0.35 g/cm³ | Mass per unit volume of loosely packed powderISO 23145 |
| Moisture Content | ≤ 0.5 % | Percentage of water content in the powderISO 787-2 |
| pH Value | 6.5–8.5 pH | Acidity or alkalinity of aqueous suspensionISO 787-9 |
| Purity (SiO₂ Content) | ≥ 99.5 % | High purity for electronic applicationsGB/T 21236 |
| Oil Absorption | 20–40 g/100g | Affects rheology in coatingsISO 787-5 |
| Whiteness | ≥ 90 % | Important for light-colored productsGB/T 5950 |
| Loss on Ignition | ≤ 0.5 % | Indicates organic impuritiesISO 3262-1 |
| Electrical Conductivity | ≤ 10 μS/cm | Low conductivity for insulationISO 7888 |
| Thermal Stability | ≤ 400 °C | Decomposition above 400°CISO 11358 |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
| pressure: | Atmospheric to 10 bar |
| temperature: | -50°C to 250°C |
| particle size range: | 1-100 microns |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
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Typical specifications include a median particle size (D50) of 15–60 μm and a particle size distribution ratio (D90/D10) of ≤5, measured by laser diffraction according to ISO 13320. These values are reference ranges; confirm the exact specifications for your intended application with the manufacturer.
Silicone micropowders modify rheological properties by dispersing as fine particles in a matrix, increasing viscosity or altering flow behavior. The effect depends on particle size, surface area, and surface treatment. For example, in coatings, they can improve sag resistance or leveling. Verify performance with the supplier for your specific formulation.
Relevant standards include ISO 13320 for particle size distribution, ISO 9277 for specific surface area, ISO 23145 for bulk density, and ISO 787 series for moisture, pH, oil absorption, and other properties. These standards serve as verification references; ensure the product meets your requirements by consulting the manufacturer.
Silicone micropowders have a thermal stability limit, with decomposition occurring above 400°C. They may also be incompatible with certain matrices, to poor dispersion or performance. Additionally, moisture content above 0.5% could affect properties. Always test under your processing conditions and consult the supplier for guidance.
Commonly used trade names and technical identifiers for Silicone Micropowders.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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