阻燃PBT D202G30--Shinite ® PBT d202g30 is a polybutyleneterephthalate (PBT) material with a 30% glass fiber reinforcedfiller. The product is available in North America,.
Shinite ® PBT d202g30 features:
Flame retardant / rated flame
Flame Retardant
The PBT process requires that PBT must be dried at 110-120 ℃ forabout 3 hours before injection molding. The molding temperature is250-270 ℃, and the mold temperature is 50-75 ℃. Once the materialis cooled from the melting state, it will solidify and crystallizeimmediately, so its cooling time is short; if the nozzletemperature is not properly controlled (on the low side), the flowchannel (nozzle) is easy to cool and solidify, and the phenomenonof nozzle plugging will occur. If the barrel temperature exceeds275 ℃ or the molten material stays in the barrel for more than 30minutes, it is easy to cause the material to decompose and becomebrittle. During PBT injection molding, a large water inlet isrequired, and hot runner system is not suitable. The mold exhaustshall be good. It is suitable to use the conditions of "high speed,medium pressure and medium temperature" for molding and processing.The fire-proof material or glass fiber PBT water inlet materialshall not be recycled. When the machine is stopped, PE or PPmaterial shall be used to clean the material pipe in time to avoidcarbonization.
Drying temperature (℃) 110-120 drying time (HR) 2-3
Mold temperature (℃) 50-75, scrap (mm) 2-6
Glue temperature (℃) 250-270 back pressure (MPA) 5-10
Injection pressure (MPA) 100-140 mold locking force (ton / in2)3-4
Injection speed: high speed; return speed (RPM): 70-90
Screw category standard screw (through nozzle)
Shut down the machine for treatment, turn off the material gatefor clearing, then turn over the crushed material (%). 15-25
Remark: PE material should be used in the fire PBT, and thenozzle material should not be recycled.
