Product introduction
TZ-35A is a new type of halogen-free phosphorus flame retardant, which is mainly used for polyolefin. TZ-35A gives polyolefin excellent flame retardancy, low density, high mechanical properties and so on. TZ-35A and thermoplastic blend, exhibit superior stability and processing. It is recommended for polypropylene polymer PP-H, elastomer, polypropylene block copolymer (PP-B), high density polyethylene (HDPE), low density polyethylene (LDPE), ethylene vinyl acetate copolymer (EVA) and other resins.


Characteristic
Adding 20-25%TZ-35A in the PP material and using the small amount of PTFE can give play to the excellent flame retardancy and reach the UL-94/V-0 standard. 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.
Recommended processing molding conditions
It is recommended at 250 degrees for processing (extrusion and injection molding).
FP-2200 is acidic, please use a processing machine with acid resistance.


physical property
White powder
No melting point (270 degrees above decomposition)
Particle size 51%D 5.0um 90%D 11.0um
Nitrogen containing rate 19-23%
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 18-22 20-25
Processing conditions: extrusion granulation: 220 degree C, 150rpm (30mm o twin screw), injection molding: 220 degree C
The PP-B smoke value of TZ-35A is lower than that of PP with brominated flame retardants. The smoke value is approximately the same as that of PP added with magnesium hydroxide flame retardant, but with much less added value, and it can reach UL-94 V-O. with 0.2% PTFE (PTFE).


Packing
25KG/ package, containing tin foil.