Light Stabilizer-944 CAS 70624-18-9
The light stabilizer UV-944 has good extraction resistance, especially suitable for thin products, such as fibers and films; It can also improve the thermal oxygen aging resistance of the material. Light stabilizer HS-944 is white to light yellow particles or powder, melting point 100-135°C, molecular weight 2000-3100, with excellent compatibility, extraction resistance and low volatility. Since UV-944 is a high relative molecular mass stabilizer, and the molecule contains only a large amount of methylate, it is stable when treated with hot oxygen.
| Item | Specification |
| Light transmittance | ≥93% （425nm） ≥95% （450nm） |
| Molecular weight | 2000-3100 g/mol |
| Melting point | 110-130oC |
| Density | 1.05 g/cm3 |
| Volatiles | ≤0.5% |
| Ash | ≤0.1% |
Light Stabilizer-944 is used in low density polyethylene film, polypropylene fiber, polypropylene tape, EVA film, ABS, polystyrene and food packaging. Light stabilizer HS-944 belongs to hindered amine light stabilizer.
1. Excellent light stabilization effect: UV-944 can effectively protect polymer materials from ultraviolet light exposure and photodegradation and thermal degradation caused by long-term thermal aging. Its light stabilization effect far exceeds that of ultraviolet absorbers and nickel-containing stabilizers, especially in pigment systems where the effect is more obvious.
2. Good compatibility and processing performance: It is a light yellow transparent granular material with low volatility. It has good compatibility with various polymer materials such as PP, LDPE, HDPE, and PVC. It can be easily dispersed in the polymer matrix without affecting the transparency and color of the resin, and has excellent processing performance.
3. Wide application range and safe and reliable: UV-944 is suitable for various forms of materials such as films, fibers, and thick products, and can be used for multiple polymers including polyolefins, polyurethanes, and polyamides. Meanwhile, it has been approved by the FDA and can be used in food contact applications, demonstrating a certain level of safety.
25kg/drum or according to customer requirements.
Light Stabilizer-944 CAS 70624-18-9
Light Stabilizer-944 CAS 70624-18-9
