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CAS Number: 849597-98-4
Phosphinate flame retardant system for reinforced polyamide 6 and polyamide 66
Exolit OP 1312 is a non-halogenated flame retardant based on organic phosphinates.
Exolit OP 1312 achieves Exolit OP 1312 flame retardant effect through intumescence.
The thermoplastic polymer with Exolit OP 1312 foams and crosslinks on exposure to flame and forms a stable char at the surface acting as a barrier.
The protective layer provides a heat-insulating effect, reduces oxygen access and prevents dripping of molten polymer.
Exolit OP 1312 is a white powder.
Exolit OP 1312 is a halogen-free, organic phosphinate.
Acts as a flame retardant.
Exhibits intumescence, good colorability, very good physical and electrical properties.
Shows low smoke toxicity, good contrast in laser marking and low material density.
Provides a heat-insulating effect, reduces oxygen access and prevents dripping of the molten polymer.
Recommended dosage level is 15-20%.
Exolit OP 1312 has a shelf life of 12 months.
Benefits of Exolit OP 1312:
Achieves Exolit OP 1312 flame retardant effect through a combined gas phase and condensed phase mode of action
UL 94 V-0 rating down to 0.4 mm thickness
Good colorability
Suited for both glass-fibre-reinforced and unreinforced grades
The flame retarded polyamide compounds exhibit very good physical and excellent electrical properties
Most efficient grade regarding UL 94 and glow wire ignition temperature (GWIT) test performance
Low smoke toxicity
Good contrast in laser marking
Low material density
Non-halogenated flame retardants with favorable environmental and health profile
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Applications of Exolit OP 1312:
Exolit OP 1312 was developed especially for use in polyamides.
Exolit OP 1312 is suited for both glass-fibre-reinforced and unreinforced grades.
The flame retarded polyamide compounds exhibit very good physical and electrical properties.
Exolit OP 1312 is also used in TPU for cable extrusion but also various injection moulded parts and artificial leather.
Formulation of Exolit OP 1312:
In glass-fibre-reinforced polyamide 6 or 6.6, a dosage of 15 to 20 % (by wt.) Exolit OP 1312 is usually sufficient to obtain the UL 94 V-0 classification for electrical components (at 1.6 as well as 0.8 mm thickness).
Subject to the polymer grade, processing conditions and glass- fibre reinforcement the dosage of the flame retardant may vary.
Processing of Exolit OP 1312:
Before incorporating Exolit OP 1312, Exolit OP 1312 is important to predry the polyamide as usual.
If possible, the resulting moisture content should be below 0.1 % (by wt.).
Predrying of Exolit OP 1312 is not necessary.
However, predrying (e.g. 4 h at 120 °C) is recommended, if even very low moisture contents must be avoided.
The mixing and processing methods customary in powder processing of polymers can be used with Exolit OP 1312.
The VDI Guideline 2263 “Prevention of dust fires and dust explosions” or the relevant national regulations must be observed.
The optimum conditions for incorporating should be determined in each individual case.
Care must be taken to ensure homogeneous dispersion of all components.
The temperature of the polymer melt should not exceed 320 °C.
Safety of Exolit OP 1312:
For disposal in accordance with the regulations the product should be treated as special waste and taken to a suitable incineration plant.
Packaging and Handling of Exolit OP 1312:
Delivery form of Exolit OP 1312:
White powder
Packaging of Exolit OP 1312:
Exolit OP 1312 is delivered in 20 kg paper bags with PE inliner or 500 kg big bags.
Storage of Exolit OP 1312:
Exolit OP 1312 should be stored in a dry place at room temperature.
Minimum shelf life is 12 months from the date of shipping when stored according to the said conditions.
