Introduction
Exposure to sunlight can have adverse effects on the useful life of plastic products. Ultraviolet (UV) radiation can break down the chemical bonds in a polymer. Photo-degradation causes cracking, chalking, color changes and the loss of physical properties. Therefore, UV stabilizing packages are vital to ensuring a polymer. Generally, UV stabilizers are categorized by two classifications: UV absorbers and hindered amine light stabilizers (HALS). High performance UV stabilizer masterbatches offer the optimal UV stability to meet current and upcoming requirements.
Product Benefits
Excellent UV resistance to meet end use requirements. Optimal balance between UV stability and long-term thermal stability. Tailored products as per end use requirements. Good processability.
Applications and Recommended UV Stabilizer System
– Polyolefin films (for thin wall thickness like film, HALS is more efficient UV stabilizer than UV absorbers)
– Polyolefin injection molded (synergistic HALS mixture)
– PP fiber pigmented (Combination masterbatch between HALS and UV absorber)
– PP pipes (HALS)
Product propety
Appearance • Light white
Forms • Pellets
Application rate • 0.5 – 3% by volume
Base carrier • Polypropylene homopolymer
Compatibilizer • Polypropylene
| Physical property | Nominal Value | Unit | Test Method |
| HALS Stabilizer | 20-40 | % | |
| Density | 0.9 | ASTM D792 | |
| Melt Flow Index | 60 | g/ 10 min | ASTM D1238 |
| Melt Temperature | 135 | oC | DSC |
| Processing Temperature | 180-250 | oC |
