DR-M858 is a flame retardant developed for polycarbonate(PC), mainly for thepreparation of PC translucent thin-walled products, including films, sheets, thin plates, and injection parts. DR-M858 itself does not contain halogen and does not needtoadd fluorine-containing PTFE. It complies with the latest regulations of the EU's PFAS free.

1. Materials

PC raw material: Covestro 2805

Flame retardant: Inovia DR-M858

2. Processing

2.1 Drying: 120°C, 4 hours.

2.2 Extrusion: 240 - 260°C.

2.3 Filming casting: temperature is 240 - 270°C

Note: The flame retardant DR-M858 can effectively reduce the melt viscosityandprocessing temperature of PC. A processing temperature of 240 - 270°C is optional.

3. Application Example Data 

Table 1. Flame retardant performance

Table 2. Mechanical Properties

Note: The film casting machine we used, is a small experimental type without vacuumpump, which leading to a number of crystal point bubbles present in the film. And that maybe effect the properties. The data above is only for reference.

Table 3. Thermal Performance

Table 4. Processing Flowability

4.Summary:

Adding 1.5% DR-M858 in total weight, PC product (0.25-1.6mm) can reach UL94-V0, whilemaintaining good mechanical and thermal properties. It can also decrease the melt viscosityand processing temperature of PC, and improve its processing fluidity.

PC Flame Retardant DR-M858_SDS.pdf

PC Flame Retardant DR-M858_TDS.pdf