點擊圖片查看大圖CELANEX 1700FC | PBT | Unfilled
Descript ion
Celanex 1700FC is a very high molecular weight extrusion grade of unreinforced polybutylene terephthalate for use in food contact applications.
| ISO Data | Physical properties | Value | Unit | Test Standard |
| Phys | Density | 1310 | kg/m³ | ISO 1183 |
| Mold shrinkage - parallel | 1.8-2.0 | % | ISO 294-4 | |
| Mold shrinkage - normal | 1.8-2.0 | % | ISO 294-4 | |
| Humidity absorption (23℃/50%RH) | 0.2 | % | ISO 62 | |
| Mech | Mechanical properties | Value | Unit | Test Standard |
| Tensile modulus (1mm/min) | 2500 | MPa | ISO 527-2/1A | |
| Tensile stress at yield (50mm/min) | 60 | MPa | ISO 527-2/1A | |
| Tensile strain at yield (50mm/min) | 6 | % | ISO 527-2/1A | |
| Nominal strain at break (50mm/min) | >50 | % | ISO 527-2/1A | |
| Tensile stress at 50% strain (50mm/min) | 28 | MPa | ISO 527-2/1A | |
| Tensile stress at break (50mm/min) | 35 | MPa | ISO 527-2/1A | |
| Tensile strain at break (50mm/min) | 120 | % | ISO 527-2/1A | |
| Flexural modulus (23℃) | 2200 | MPa | ISO 178 | |
| Flexural strength (23℃) | 80 | MPa | ISO 178 | |
| Charpy impact strength @ 23℃ | NB | kJ/m² | ISO 179/1eU | |
| Charpy impact strength @ -30℃ | 220 | kJ/m² | ISO 179/1eU | |
| Charpy notched impact strength @ 23℃ | 7.5 | kJ/m² | ISO 179/1eA | |
| Charpy notched impact strength @ -30℃ | 7 | kJ/m² | ISO 179/1eA | |
| Notched impact strength (Izod) @ 23℃ | 5.5 | kJ/m² | ISO 180/1A | |
| Rockwell hardness | 72 | M-Scale | ISO 2039-2 | |
| Therm | Thermal properties | Value | Unit | Test Standard |
| Melting temperature (10℃/min) | 225 | ℃ | ISO 11357-1,-2,-3 | |
| Glass transition temperature (10℃/min) | 60 | ℃ | ISO 11357-1,-2,-3 | |
| DTUL @ 1.8 MPa | 50 | ℃ | ISO 75-1/-2 | |
| DTUL @ 0.45 MPa | 150 | ℃ | ISO 75-1/-2 | |
| Vicat softening temperature B50 (50℃/h 50N) | 182 | ℃ | ISO 306 | |
| Coeff.of linear therm. expansion (parallel) | 1.1 | E-4/℃ | ISO 11359-2 | |
| Coeff.of linear therm. expansion (normal) | 0.92 | E-4/℃ | ISO 11359-2 | |
| Limiting oxygen index (LOI) | 22 | % | ISO 4589 | |
| Flammability at thickness h | HB | class | UL94 | |
| thickness tested (h) | 0.75 | mm | UL94 | |
| Eiec | Electrical properties | Value | Unit | Test Standard |
| Relative permittivity - 100 Hz | 4 | - | IEC 60250 | |
| Relative permittivity - 1 MHz | 3.6 | - | IEC 60250 | |
| Dissipation factor - 100 Hz | 14 | E-4 | IEC 60250 | |
| Dissipation factor - 1 MHz | 210 | E-4 | IEC 60250 | |
| Volume resistivity | >1E13 | Ohm*m | IEC 60093 | |
| Surface resistivity | >1E15 | Ohm | IEC 60093 | |
| Electric strength | 23 | kV/mm | IEC 60243-1 | |
| Comparative tracking index CTI | 600 | - | IEC 60112 | |
| SpecProd | Test specimen production | Value | Unit | Test Standard |
| Processing conditions acc. ISO | 7792-2 | - | Internal | |
| Injection molding melt temperature | 243 | ℃ | ISO 294 | |
| Injection molding mold temperature | 82 | ℃ | ISO 294 | |
| Injection molding flow front velocity | 300 | mm/s | ISO 294 | |
| Injection molding hold pressure | 48 | MPa | ISO 294 |
Processing
Pre Drying
Necessary low maximum residual moisture content: 0.02%
To avoid hydrolytic degradation during processing, CELANEX resins have to be dried to a moisture level equal to or less than 0.02%. Drying should be done in a dehumidifying hopper dryer capable of dewpoints <-40℉ (-40℃) at 250℉ (121℃) for 4 hours.
For subsequent storage of the material in the dryer until processed (<= 60 h) it is necessary to lower the temperature to 100℃.
Drying time (h):4
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