Highly effective phosphite-based secondary antioxidant with exceptional hydrolytic stability.
Excellent compatibility with polyolefins, engineering plastics, and elastomers.
Low volatility and superior thermal processing stability during extrusion and injection molding.
Significantly enhances long-term oxidative resistance when used synergistically with primary phenolic antioxidants.
Non-staining and low-color formation, preserving product aesthetics in demanding applications.
Polypropylene (PP) fibers and nonwovens for automotive and hygiene markets.
Polyethylene (PE) blow-molded containers and HDPE pipes.
Thermoplastic elastomers (TPEs) requiring high clarity and aging resistance.
Engineering plastics such as polybutylene terephthalate (PBT) and polyamide (PA) compounds.
Recycled polymer streams where stabilization against reprocessing degradation is critical.
| Chemical Type | Tris(2,4-di-tert-butylphenyl) phosphite |
| Product Form | White crystalline powder |
| Appearance | Free-flowing white to off-white granules or powder |
| Melting Point | 190–200 °C (determined by DSC) |
| Assay (by HPLC) | ≥ 99.0% |
| Volatility (150 °C, 2 h) | ≤ 0.5% w/w |
| Heavy Metals (as Pb) | ≤ 10 ppm |
| Primary Applications | Polyolefins, engineering thermoplastics, thermoplastic elastomers |
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E-mail: wangxingqiang@ericwchem.com
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