HaflonTMseries Halogen-free flame retardants
Halogen-free flame retardants used in TPE
NP2536
Product Description
NP2536 is a halogen-free flame retardant based on P&N system, is developed especially for TPE. The product achieves its flame retardant effect through intumescence. The polymer with NP2536 will expand when burning and form a stable carbon layer on the surface. The protective layer provides a heat insulation effect, reduces oxygen access and prevents the further spread of flame, plays a role in fire retardant.NP2536 less smoke, non-toxic, non-molten droplet, is a highly efficient environmentally friendly flame retardants.
Features
●Excellent compatibility,TPE product has excellent mechanical properties.
●High flame retardant efficiency.Can meet different requirements of flame retardant,such as VW-1、UL94-V0.
●Good thermal stability,decomposition temperature can reach 320℃,not release acidic gas such as phosphine.
●Not hydrolyzed,not precipitated.
●Easy Coloring.
●Halogen-free.Product complies with EU ROHS directive,REACH and other regulations.
●Good processing performance.
Specification and Technical Data
Characteristics
|
Unit
|
Target Value
|
Test Method
|
Appearance
|
|
white powder
|
|
Density
|
g/cm³
|
approx. 1.4
|
at 20°C
|
Particle Size Distribution D50
|
µm
|
≤ 5
|
Laser diffraction in acetone
|
Water / Moisture
|
%( By wt.)
|
max. 0.3
|
Thermogravimetry
|
Decomposition Temperature
|
°C
|
≥ 320
|
(DTA/TG) |
Applications
NP2536 is developed especially for TPE. Recommended to add 25-30% ;
NP2536 must be used with PPO or charring resin CR1800, charring agent is added in an amount of 15-20%;
Using NP2536 with charring resin CR1800, you can produce white halogen-free flame retardant TPE.The processing temperature must below 200℃.CR1800 has good compatibility with other resins, products have no risk of cracking, not prone to yellowing.