Beschreibung
D204 is a magnesium aluminum hydrotalcite grade for spandex fiber production. The grade is positioned for formulation development where fine particle dispersion, heat stability and fiber processing behavior are important.
Anwendungen
- Spandex fiber production.
- Additive selection and processing trials for spandex formulations.
Technical Reference Data
| Eigentum | Reference Value |
|---|---|
| MgO/Al₂O₃ molar ratio | 4.30 |
| BET specific surface area | 15–18 m²/g |
| Particle size D50 | <1 µm |
| Particle size D90 | <15 µm |
| Chlorine content | <100 ppm |
| Heavy-metal content | <10 ppm |
| Loss on drying at 240 °C | <1,0% |
| Weißsein | >96% |
Formulation and Qualification Notes
Evaluate compatibility, dispersion, filtration and fiber properties in the intended spandex production process. The oxide molar ratio shown here is MgO/Al₂O₃, not the elemental Mg/Al ratio.
The values shown are reference data for grade selection, not a finished-product performance guarantee. Confirm the current TDS, SDS and batch COA before qualification. Select the addition level through formulation trials and evaluate dispersion, processing and the required end-use properties.
Request a Sample or Technical Information
Contact Longchang Chemical with the grade, base material, intended application and required specification to discuss samples, technical documentation and a quotation.
For pricing, sample availability and current documentation, use the inquiry form below or email info@longchangchemical.com.
