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CELANEX 2414MT
CELANEX庐 PBT
PBT
Characteristics
Processing
Injection Moulding
Delivery form
Pellets
Additives
Release agent, Low wear / Low friction
Product Text
Preliminary Technical Data Sheet
Celanex 2414MT is an unreinforced, low viscosity and low friction Polybutylene Terephthalate, specifically designed for medical/healthcare applications requiring excellent sliding and low wear properties.
Product information
Value
Test Norm
Resin Identification
PBT
*** 1043
Part Marking Code
>PBT<
*** 11469
Rheological properties
Value
Unit
Test Norm
Melt volume-flow rate
40
cm鲁/10min
*** 1133
Temperature
250
掳C
Load
2.16
kg
Moulding shrinkage range, parallel
1.8 - 2.2
%
*** 294-4, 2577
Moulding shrinkage, normal
2.0
%
*** 294-4, 2577
Moulding shrinkage range, normal
1.8 - 2.2
%
*** 294-4, 2577
Mechanical properties
Value
Unit
Test Norm
Tensile modulus
2400
MPa
*** 527-1/-2
Tensile stress at yield, 50mm/min
50
MPa
*** 527-1/-2
Tensile strain at yield, 50mm/min
4
%
*** 527-1/-2
Nominal strain at break
19
%
*** 527-1/-2
Flexural modulus
2400
MPa
*** 178
Flexural strength
80
MPa
*** 178
Charpy impact strength, 23掳C
150
kJ/m虏
*** 179/1eU
Charpy notched impact strength, 23掳C
3
kJ/m虏
*** 179/1eA
Poisson&锛�39;s ratio
0.38[C]
[C]: Calculated
Thermal properties
Value
Unit
Test Norm
Melting temperature, 10掳C/min
225
掳C
*** 11357-1/-3
Glass transition temperature, 10掳C/min
60
掳C
*** 11357-1/-3
Physical/Other properties
Value
Unit
Test Norm
Humidity absorption, 2mm
0.2
%
Sim. to *** 62
Water absorption, 2mm
0.45
%
Sim. to *** 62
Density
1280
kg/m鲁
*** 1183
Injection
Value
Unit
Drying Recommended
yes
Drying Temperature
140
掳C
Drying Time, Dehumidified Dryer
4 - 6
h
Processing Moisture Content
鈮�0.01
%
Melt Temperature Optimum
245
掳C
Min. melt temperature
240
掳C
Max. melt temperature
250
掳C
Screw tangential speed
0.1 - 0.3
m/s
Mold Temperature Optimum
80
掳C
Min. mould temperature
60
掳C
Max. mould temperature
130
掳C
Additional information
Injection molding
To minimize the volatile content in the final product, dry the resin to 鈮�0.01% water content. In injection molding, use the lowest possible melt temperature (recommended 240 掳C) and shortest feasible residence time (recommended 2-3 minutes). Store the parts in a ventilated, clean area before use. If assistance is needed please contact your Celanese account representative.
These recommendations are based on internal Celanese testing. For drying and injection molding conditions outside the above parameters, customer must test for and verify suitably low volatiles emissions on molded articles to confirm the final product is suitably pure for its intended use.
Processing Notes
Pre-Drying
To avoid hydrolytic degradation during processing, CELANEX resins have to be dried to a moisture level equal to or less than 0.01%. Drying should be done in a dehumidifying hopper dryer capable of dewpoints <-40掳C (-40掳F) at 140掳C (284掳F) for 4-6 hours.
Storage
For subsequent storage of the material in the dryer until processed (<= 60 h) it is necessary to lower the temperature to 100掳 C.
Diagrams
