Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Chemical Name
- CASE Ingredients Functions
- Composite Materials Functions
- Plastics & Elastomers Functions
- CAS No.
- 60676-86-0
- EC No.
- 262-373-8
- Technologies
- Product Families
- Particle Image
Features & Benefits
- CASE Ingredients Features
- Materials Features
- Product Highlights
The Sunspheres™ 200 Nm ST-3 microspheres are surface treated with a methacryl-functional silane for improved dispersion and reaction into polymers such as unsaturated polyester, acrylates, and vinyl esters.
The Sunspheres™ 200 Nm efficiently transmit ultraviolet and visible light from 200 nanometers through the visiblespectrum, while absorbing in the IR range. These engineered fused, amorphous silica microspheres are resistant to temperatures greater than 1000° C and are chemically stable in a vast range of resins and pH.
Dosage is typically 3- 12% by total weight of the finished composition. The average particle size is 200 nanometers and range in size from 50 to 500 nm.
Applications & Uses
- Markets
- Applications
- Compatible Substrates & Surfaces
- Cure Method
- Coating Type
- Plastics & Elastomers End Uses
- Applications
- Reduced shrinkage/improved adhesion.
- Impact strength.
- Anti-corrosion barrier.
- Mar, scratch, and abrasion resistance.
- Optical effects/color density.
- Oenhanced UV curing.
Properties
- Color
- Physical Form
- Appearance
- Fine White Powder
- Physico-Chemical Properties
Value | Units | Test Method / Conditions | |
Refractive Index | 1.46 | ND | — |
Hardness (Mohs) | max. 8.0 | — | — |
Softening Temperature | max. 10000 | °C | — |
pH Value | 4.6 | — | — |
Strain Point | max. 6000 | °C | — |
Coefficient of Thermal Expansion | 0.48 x 10-6 | /K | — |
X-Ray Form | Amorphous | — | — |
DC Resistivity | 1 x 10^8 | — | — |
SiO2 Content | 99.99 | % | — |
Na2O Content | 2 | ppm | — |
BET Surface Area | 23.52 | sq.m/g | — |
K2O Content | 2 | ppm | — |
Oil Absorption | 3 | — | — |
Moisture | 0.07 | % | — |
Crushing Strength | max.. 60,000 | psi | — |