Product introduction
TZ-35A is a new type of halogen-free phosphorus and nitrogen flame retardant, which is mainly used in polypropylene and polyethylene. TZ-35A gives polypropylene excellent flame retardancy, low density, high mechanical properties and so on. The improved intumescent flame retardant has the advantages of resistance to precipitation, water boiling, and yellowing resistance. TZ-35A and PP blend thermoplastic plastics, processing showed superior stability, can completely replace ADK FP2200.


Characteristic
Adding 20-25%TZ-35A in the PP and PE materials can play an excellent flame retardant effect and reach the standard of UL-94/1.6V-0. Therefore, compared with the inorganic magnesium hydroxide flame retardant, it has the advantages of small addition, low density and improving the mechanical properties of the polymer. Excellent thermal stability and processing performance.
The processing molding conditions are recommended, and it is recommended to be processed under 250 degrees (extrusion molding and injection molding).


physical property
White powder
No melting point (270 degrees above decomposition)
Particle size D50 15um
Nitrogen content is 18%
Phosphorus content 19-20%
The proportion is about 0.3-0.4
Analysis conditions of volatile TG (10 degree C/min, in air)
Weight reduction 5% 287 degrees C


The effect of flame retardancy in PP, UL-94 experiment
Table 1: and 0.2% PTFE with 1.6 mm thickness PP reach UL-94 V-0 level, the required amount of TZ-35A
Adding amount of flame retardant to UL-94 V-0 level (WT%)
PP-H PP-B
TZ-35A 2225


Processing conditions
1 the processing temperature should not be more than 190 degrees, in the twin screw extrusion process do not add screen mesh, and maintain a certain degree of vacuum.
2 inorganic filler can reduce the flame retardancy, and the green color powder will reduce the flame retardancy.
3 for the polypropylene with a melting index greater than 20 and a product with a thickness less than 1.6mm, the addition of flame retardants is slightly higher.
4 addition of a small amount of polypropylene wax or EBS can improve glossiness


Packing
25KG/ package, containing tin foil.