Resorcinol Bis(diphenyl phosphate) (RDP)
Featured inFlame Retardants
Resorcinol bis(diphenyl phosphate) (RDP) is a non-halogen, oligomeric aryl phosphate ester flame retardant widely used in PC/ABS and PC/PBT engineering plastic blends. Its higher molecular weight and oligomeric structure compared to monomeric phosphate esters result in significantly reduced volatility, migration, and hydrolytic sensitivity. RDP effectively achieves UL94 V-0 at 10–15% loading in PC/ABS while maintaining the good impact performance and dimensional stability demanded by electronics applications.
Teknik Özellikler
| appearance | Colorless to pale yellow liquid or low-melting solid |
| moisture (%) | <0.1 |
| acid value (mgKOH/g) | <0.1 |
| phosphorus content (%) | 10.5–11.0 |
| density (20°C, g/cm³) | 1.29–1.31 |
| viscosity (25°C, mPa·s) | 700–1500 |
Uygulama Alanları
- PC/ABS blends for consumer electronics enclosures and IT equipment housings
- PC/PBT alloys for automotive interior panels and electrical connectors
- Thin-wall injection molded parts requiring UL94 V-0 at 1.5–2.0 mm
- Office equipment and copier machine housings
- Electrical and electronic engineering plastic components under IEC 60695
Ürün Özellikleri
- Oligomeric structure provides lower volatility and migration than monomeric phosphate FRs in PC/ABS
- Achieves UL94 V-0 at 10–15% in PC/ABS with minimal impact on Izod impact strength
- Non-halogen and non-antimony formulation meets RoHS and WEEE requirements for electronics
- Low acid value (<0.1 mgKOH/g) prevents hydrolytic degradation of polycarbonate matrix
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