myالوثائق الفنية
AEROSIL® R 7200 is a structure-modified fumed silica aftertreated with methacrylsilane to ensure high filler loading. Used in acrylate, methyl acrylate, unsaturated polyester and vinylester adhesives.
تفاصيل
CAS
402-78-6 100
منتج
المورد
التركيب الكيميائي
Hydrophobic fumed silica
مزايا
- Low thickening effect
- Possible to incorporate up to 20 weight-% using the usual dispersion technology (such as bead mill)
- Acts as an active filler in acrylate systems
- As a filler it can increase the scratch resistance of paint and coating systems (such as UV-curing) and printing inks
- it improves the mechanical properties, such as the hardness of plastics
- anti-sagging, thixotropic, anti-settling effects
تطبيقات أخرى
Methacrylate-functionalized reinforcing additive with cross-linking option for polymers, composite materials, printing inks, and acrylate-based coatings
acrylate, methyl acrylate, unsaturated polyester and vinylester adhesives
تخزين
We recommend to store the product in closed containers under dry conditions and to protect the material from volatile substances.Aerosil® R 7200 should be used within 2 years after production.
معلومات تقنية
| كمية | قدر | وحدة | التعلیق |
|---|---|---|---|
| الخصائص الفيزيائية | |||
| Tap density | 0.23 | g/cm3 | |
| Surface Area | 125 - 175 | m²/g | BET |
| SiO2 | >99 | % | based on ignited material |
| pH | 4 - 6 | in 4% dispersion | |
| الخواص الكيميائية | |||
| Carbon percentage | 4.5 - 6.5 | % | |
| Loss on drying | <1.5 | % | 2hours at 105°C |