PP Compounds (Eco-Friendly Flame Retarded)

Properties

Enhanced flame retardancy
  • Capable of achieving UL94 V-0 or V-1 ratings. Some UL94 5VA
  • Increased Limiting Oxygen Index (LOI)
  • Formation of a char layer during combustion, which suppresses flame propagation
Reduced smoke and toxic gas generation
  • Phosphorus FRs produce far less smoke and harmful gases compared to halogen FRs
  • During burning, they create a protective phosphate-char layer, minimizing gas release
Improved thermal stability and dimensional stability
  • When well-dispersed, they enhance heat resistance and reduce deformation at elevated temperatures
Better retention of mechanical properties
  • Phosphorus FRs generally cause less reduction in strength or toughness than halogen FRs
Environmentally friendly & regulation compliant
  • Meets major regulations such as RoHS, REACH
  • Preferred in global electronics and appliance applications

Mechanism of Phosphorus Flame Retardants (Simplified)

  • Act mainly in the condensed phase
  • Form a carbon-rich char barrier on the polymer surface
  • This layer blocks heat and oxygen, helping self-extinguishing behavior
  • Unlike halogen FRs, they do not rely on gas-phase radical trapping

Key Characteristics and Typical Applications

Products Components Applications
JSPP10FG44 PP+G/F20%+P F/R, UL V-0
Electrical & Electronic Components
  • Switch and relay housings
  • Sockets, breakers, base frames
  • Battery cases
  • LED driver housings
  • Connectors
Home Appliances
  • Internal parts of washing machines and vacuum cleaners
  • Air conditioner / air purifier components
  • TV/monitor internal housings
  • Small kitchen appliances
Automotive Electrical Parts
  • EV modules and battery-related parts
  • Fuse boxes, relay blocks
  • In-cabin electrical connectors
Industrial Equipment
  • Control box housings
  • Wire ducts
  • Telecom equipment housings
  • Semi-Conductor Industries' Ventilation Ducts
JSPP10FG46 PP+G/F30%+P F/R, UL V-0
JSPP10FG66 PP+G/F30%+P F/R, UL V-0↑
JSPP10F4 PP+P F/R, UL V-0↑
JSPP10F10 PP+P F/R 50% 50% and 70% masterbatches for easy use.
Product of South Korea
JSPP10F14 PP+P F/R 70%

Advantages of Phosphorus FR Compared to Halogen FR

Environmental & Safety Advantages
Category Phosphorus FR Halogen FR
Smoke generation Low High
Toxic gases Very low HCl, HBr, toxic fumes
Environmental regulations RoHS/REACH compliant Many substances restricted
Disposal / incineration Low risk Potential dioxin formation
Performance Advantages
  • No corrosive residues, unlike halogen FRs
    → Prevents corrosion in electrical contacts or metal inserts
  • More thermally stable at high temperatures
  • Better compatibility with polymer blends (PC/ABS, PA, PBT, etc.)
Flame-retardant mechanism difference
  • Phosphorus FR → Condensed-phase action (char formation)
  • Halogen FR → Gas-phase action, producing more smoke and harmful gases
Mechanical property retention
  • Less reduction in strength/toughness
  • Halogen FRs typically degrade mechanical properties more severely
Processing advantages
  • No corrosive off-gassing during molding
  • Reduced mold corrosion and maintenance costs
  • Less odor during processing