R-P Flame Retardant RPM440B

Product Description                                                                   
      RPM440B is a non -halogenated flame retardant based on red phosphorus, particularly suitable for polyamide articles. It is offered as a free-flowing and dust-free master batch in pellets physical form which makes it very easy to handle, accurate to dose and safe to process, allowing high consistency in the quality of the final article.
     RPM440B is based on stabilized and micro-encapsulated red phosphorus powder grades and polyamide as a carrier resin. It is easy to be homogenously dispersed in the polymer compound.  Compared to RPM440, RPM440B has an improved flame retardancy effect.
               Delivery Specification and Technical Data                                                                                                              
Characteristics            unit       Target Value           DS 1)       TD 2)
Phosphorus              %(w/w)        45-47                    √          /
Moisture                    %(by wt)        max 0.1                √          /
Density                         g/cm3      approx.1.5               /                    √
Bulk density                kg/cm3    approx.900               /                   √   
Fire temperature           ℃        ﹥320                   /                   √                             

Applications                                                                            
   RPM440B is the master batch developed especially for use in polyamides. It is suited for both   glass-fiber reinforced and non-reinforced grades. The flame retarded polyamide compounds exhibit very good physical and electrical properties.

Formulation
     In glass-fiber-reinforced PA6 or PA66, a recommended dosage should range from 10 to 14%(by wt) based on the weight of polymer, depending on PA grade, processing conditions and glass fiber content and the required flame retardancy class.
     Specifically, in PA66 with 30% glass fiber, a dosage of 13% to 14% is usually sufficient to meet the high level demanding applications for electrical components (i.e.V-0 at 0.8mm in thickness according to UL94, CTI﹥400V.)