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Highly effective secondary antioxidant based on triphenyl phosphite (TPP) chemistry.
Excellent hydrolytic stability under processing conditions typical for thermoplastics.
Low volatility and minimal odor, supporting clean melt processing and improved workplace safety.
Synergistic performance when combined with primary antioxidants such as hindered phenols.
Non-staining and compatible with polyolefins, engineering plastics, and elastomers.
Polypropylene (PP) fibers and injection-molded automotive components.
Polyethylene (PE) films, pipes, and geomembranes exposed to thermal stress during extrusion.
Thermoplastic elastomers (TPEs) requiring long-term aging resistance.
Recycled polyolefin compounds where oxidative degradation during reprocessing must be minimized.
Medical-grade polymer formulations requiring low extractables and regulatory compliance support.
| Chemical Type | Triphenyl phosphite (TPP) |
| Product Form | Free-flowing white to off-white crystalline powder |
| Appearance | Crystalline solid, free from visible impurities |
| Molecular Weight | 268.27 g/mol |
| Melting Point | 66–69 °C |
| Assay (by GC) | ≥ 99.0% |
| Moisture Content | ≤ 0.15% (by Karl Fischer) |
| Heavy Metals (as Pb) | ≤ 10 ppm |
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
