泰科纳POM M25UV---M25UV is an acetal copolymer developed as a natural UV light stabilized low flow, high molecular weight grade. It has been formulated as a natural acetal that does not discolor, yet maintains protection from UV light exposure.
Physical performance rating unit system test method
Density: 1.41 g / cm? ISO 1183
Dissolution volume flow rate (MVR) (190 ° C / 2.16 kg) 2.20 cm3 / 10min ISO 1133
Shrinkage: ISO 294-4
Vertical flow direction 1.8% ISO 294-4
Flow direction: 2.2% ISO 294-4
Water absorption ISO 62
Saturated, 23 ° C 0.75% ISO 62
Balanced, 23 ° C, 50% RH 0.20% ISO 62
Mechanical properties rating unit system test method
Tensile modulus 2500 MPa ISO 527-2 / 1A / 1
Tensile stress (yield) 62.0 MPa ISO 527-2 / 1A / 50
Tensile strain (yield) 12% ISO 527-2 / 1A / 50
Bending modulus (23 ° C) 2400 MPa ISO 178
Impact performance rating unit system test method
Notched impact strength of simply supported beam (23 ° C) 8.5 kJ / M? ISO 179 / 1ea
Notched impact strength of cantilever beam (23 ° C) 7.6 kJ / M? ISO 180 / 1A
Thermal performance rating unit test method
Hot deformation temperature (1.8 MPa, UN annealed) 93.0 ° C ISO 75-2 / A
Melting temperature 1 166 ° C ISO 11357-3
Linear coefficient of thermal expansion ISO 11359-2
Flow 1.2e-4 cm / cm / ° C ISO 11359-2
Transverse 1.2e-4 cm / cm / ° C ISO 11359-2
Injection rating unit system
Drying temperature: 80.0 to 100 ° C
Drying time: 3.0 HR
The temperature at the back of the barrel is 170 to 180 ° C
The temperature in the middle of the barrel is 180 to 190 ° C
Temperature at front of barrel 180 to 190 ° C
Nozzle temperature 190 to 200 ° C
Processing (melt) temperature 180 to 200 ° C
Mold temperature: 80.0 to 120 ° C
Injection pressure: 60.0 to 120 MPa
Slow injection speed
Holding pressure 60.0 to 120 MPa
Back pressure: 0.00 to 0.500 MPa
