ADP-33

ADP-33 is a halogen-free flame retardant based on organic phosphinates,white powder,called Aluminum Diethyl Phosphinate.The product is not hygroscopic and is insoluble in water and common organic solvents like acetone, dichloromethane, MEK, toluene and so on.

Benefits

Non-hygroscopic, not hydrolyzed and not precipitated

Suited as flame retardant for thermoplastics and thermosets

High efficiency due to its high phosphorus content

UL 94 V-0 rating down to 0.4 mm thickness

Suited for processing temperatures up to 350 °C

Suitable for both glass fiber reinforced and unreinforced grades

The flame retardant polyamide compounds exhibit very good physical and excellent electrical properties

Suitable for lead free soldering

Good colorability

Non-halogenated flame retardant with favorable environmental and health profile

Specification and Technical Data 

Characteristics 

Unit  

Target Value  

Test Method 

Phosphorus 

%(w/w)  

23.0 - 24.0  

Water / Moisture 

%(w/w)  

max. 0.5

Thermogravimetry 

Density 

g/cm³  

approx. 1.35 

at 20 °C  

Bulk Density 

kg/m³  

approx. 400 - 600  

Decomposition Temperature 

°C  

> 350  

TGA 1 % weight loss  

Average Particle Size (D50) 

µm  

20 - 40  

Applications 

ADP-33 can even be applied in high temperature polyamides because of its high temperature stability. It is suitable for both glass fibre reinforced and unreinforced grades. The flame retardant polyamide compounds exhibit very good physical and electrical properties. 

Processing

Before incorporating ADP-33, it is important to predry the polymer as usual. Predrying of ADP-33 is not necessary. However, predrying (e. g. 4h 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 ADP-33. 

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 350 °C.

Packaging

25 kg /bag, using paper bags with PE inner.The product should be stored in a dry place at room temperature.