PC Flame Retardant DR-M858

DR-M858 is a flame retardant developed for PC polycarbonate,mainly for the preparation of

PC translucent thin-walled products, including films, sheets, thin plates, and thin-walled

injection molded parts. DR-M858 itself does not contain halogen and does not need to add

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: Dry in a 120 ℃ blast dryer for 4 hours..

2.2 Extrusion: 240 - 270°C.

2.3 Filming casting: temperature is 240 - 270°C

Note: The flame retardant DR-M858 can effectively reduce the melt viscosity and processing

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 is a small experiment instrument, and no vacuum pump is

installed. It is difficult to remove the residual moisture completely, and a number of crystal

point bubbles are present in the film. The data above is only for reference.

Table 3. Thermal Performance

Table 4. Melt Index (MI)

4.Summary:

DR-M858 at a dosage level of 1.5% will afford the PC sheets UL94-V0@0.1-0.8mm.

Meanwhile mechanical properties is maintained to a great extent. The melt viscosity of PC resin

is lowered notably, and the processing temperature of PC can be lowered by around 30 degrees.