High-performance secondary antioxidant based on tri(nonylphenyl) phosphite (TNPP) chemistry.
Excellent hydrolytic stability and low volatility for extended processing window in high-temperature compounding.
Effective peroxide decomposer that synergizes with primary antioxidants (e.g., hindered phenols) to enhance long-term thermal stability.
Low color formation and minimal impact on polymer clarity—ideal for light-colored and transparent applications.
Compatible with polyolefins, engineering thermoplastics, and elastomers including PP, HDPE, LDPE, and EPDM.
Polypropylene (PP) automotive interior parts requiring long-term heat resistance and low fogging.
HDPE and LDPE blow-molded containers for food, pharmaceutical, and chemical packaging.
Thermoplastic elastomer (TPE) compounds used in medical tubing and consumer goods.
Masterbatch formulations where high additive loading and dispersion stability are critical.
Recycled polyolefin streams needing robust stabilization against thermo-oxidative degradation.
| Chemical Type | Tri(nonylphenyl) phosphite (TNPP) |
| Product Form | Pale yellow to amber liquid |
| Appearance | Clear, homogeneous liquid at room temperature |
| Density (25°C) | 0.97–0.99 g/cm³ |
| Phosphorus Content | Approx. 3.4–3.6 wt% |
| Acid Value (mg KOH/g) | < 0.5 |
| Flash Point (Cleveland Open Cup) | > 200°C |
| Primary Applications | Polyolefins, engineering plastics, elastomers, masterbatches |
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E-mail: wangxingqiang@ericwchem.com
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