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CELANEX 2302SW1 GV1/30
CELANEX庐 PBT
(PBT+PET+PTFE)-GF30
Characteristics
Processing
Injection Moulding
Delivery form
Pellets
Additives
Release agent, Low wear / Low friction
Special characteristics
Heat stabilised or stable to heat
Product Text
Chemical abbreviation according to *** 1043-1: PBT+PET GF30, PTFE-modified grade with 30% glass fiber for injection molded parts with superior gloss and improved slip and wear characteristics. Flammability UL 94 HB minimum thickness 0.8 mm.
Preliminary Data Sheet
Product information
Value
Test Norm
Resin Identification
(PBT+PET+PTFE)-GF30
*** 1043
Part Marking Code
>(PBT+PET+PTFE)-GF30<
*** 11469
Rheological properties
Value
Unit
Test Norm
Melt volume-flow rate
10
cm鲁/10min
*** 1133
Temperature
265
掳C
Load
2.16
kg
Mechanical properties
Value
Unit
Test Norm
Tensile modulus
10500
MPa
*** 527-1/-2
Tensile stress at break, 5mm/min
145
MPa
*** 527-1/-2
Tensile strain at break, 5mm/min
2.5
%
*** 527-1/-2
Poisson&锛�39;s ratio
0.34[C]
[C]: Calculated
Thermal properties
Value
Unit
Test Norm
Melting temperature, 10掳C/min
255
掳C
*** 11357-1/-3
Temperature of deflection under load, 1.8 MPa
200
掳C
*** 75-1/-2
Flammability
Value
Unit
Test Norm
Burning Behav. at thickness h
HB
class
IEC 60695-11-10
Thickness tested
0.8
mm
IEC 60695-11-10
Physical/Other properties
Value
Unit
Test Norm
Humidity absorption, 2mm
0.15
%
Sim. to *** 62
Density
1500
kg/m鲁
*** 1183
Injection
Value
Unit
Drying Recommended
yes
Drying Temperature
120
掳C
Drying Time, Dehumidified Dryer
4
h
Processing Moisture Content
鈮�0.04
%
Melt Temperature Optimum
265
掳C
Min. melt temperature
255
掳C
Max. melt temperature
275
掳C
Screw tangential speed
0.1 - 0.3
m/s
Mold Temperature Optimum
100
掳C
Min. mould temperature
90
掳C
Max. mould temperature
130
掳C
Additional information
Injection molding
Preprocessing
To avoid hydrolytic degradation during processing, CELANEX resins have to be dried to a moisture level equal to or less than 0,02%. The drying should be done in a dry-air dryer (dew point <-30掳C) with a temperature of 120 to 140 掳C and a drying time of 2 to 4 hours. In case of longer residence times in the dry-air dryer, the temperature should be reduced to 100掳C.
The time between drying and processing should be kept as short as possible. The processing machine feed hopper should be closed during the processing operation.
Processing
Melt Temperature 265-275 掳C
Mold Temperature *) 90-100 掳C
Maximum Barrel Residence Time **) 5-10 min
Injection Speed fast
Peripheral screw speed max.0,3 m/sec
Back Pressure 10-30 bar
Injection Pressure 600-1000 bar
Holding Pressure 400-800 bar
Nozzle Design open design preferred
Injection speed, injection pressure and holding pressure have to be optimized to the individual article geometry. To avoid material degradation during processing low back pressure and minimum screw speed have to be used. Overheating of the material has to be avoided.
Celanese recommends only externally heated hot runner systems.
*) For moulded parts with especially high requirements to the surface quality or dimensional stability, a mold temperature of up to 110 掳C can be advantageous.
**) If the cylinder temperatures are higher than the recommended maximum temperatures, the max. residence time in the barrel has to be reduced.
Processing Notes
