English
Español
tiếng việt
русский
Halogen-free phosphorus-based flame retardant offering excellent fire safety performance.
Good thermal stability suitable for processing temperatures up to 220 °C.
Low volatility and minimal migration, ensuring long-term flame-retardant efficacy in polymers.
Compatible with common engineering thermoplastics including polyesters, polyamides, and PBT.
Meets UL 94 V-0 rating at appropriate loading levels in selected polymer systems.
Flame-retarded polybutylene terephthalate (PBT) for automotive interior components.
Electrical and electronic housings requiring RoHS-compliant flame protection.
Wire and cable jacketing materials based on thermoplastic polyester blends.
3D printing filaments where halogen-free flame retardancy is mandated.
Industrial connectors and structural parts in low-smoke, zero-halogen environments.
| Chemical Type | Organophosphorus compound |
| Product Form | White to off-white free-flowing granules |
| Appearance | Granular solid |
| Density (25 °C) | 1.45–1.50 g/cm³ |
| Melting Range | 245–255 °C |
| Moisture Content | ≤ 0.1 wt% |
| Thermal Decomposition Onset (TGA, N₂) | ≥ 270 °C |
| Primary Applications | Engineering thermoplastics, especially PBT and PET blends |
Q1: What types of polymers is VIAPAL ADDITOL P820 compatible with?
A: VIAPAL ADDITOL P820 is primarily designed for use in thermoplastic polyurethanes (TPU), polyolefins (e.g., PP and PE), and certain engineering thermoplastics. It demonstrates good dispersion and compatibility in non-polar to moderately polar polymer matrices, though performance should be verified through formulation testing.
Q2: How does VIAPAL ADDITOL P820 achieve flame retardancy?
A: VIAPAL ADDITOL P820 functions primarily through a condensed-phase mechanism—promoting char formation and reducing the release of flammable volatiles during thermal decomposition. Its phosphorus-based chemistry enhances thermal stability and surface barrier development without relying on halogenated compounds.
Q3: Is VIAPAL ADDITOL P820 suitable for applications requiring low smoke and low toxicity?
A: Yes—VIAPAL ADDITOL P820 is a halogen-free flame retardant formulated to support reduced smoke density and lower generation of corrosive or toxic gases during combustion, making it appropriate for indoor, transportation, and public-space applications where fire safety and emission profiles are critical.
Q4: What is the typical dosage range for effective flame retardancy?
A: Effective dosage generally ranges from 0.1% to 2% by weight, depending on the base polymer, part thickness, and target flame performance (e.g., UL 94 rating). Optimization requires empirical evaluation, as synergistic effects may occur with other additives such as char formers or nanofillers.
Q5: Does VIAPAL ADDITOL P820 affect mechanical properties or processing behavior?
A: At recommended dosages, VIAPAL ADDITOL P820 typically maintains good balance between flame retardancy and mechanical integrity—tensile strength and elongation are generally well preserved. It exhibits favorable thermal stability during melt processing, with minimal impact on extrusion or injection molding parameters under standard conditions.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
