阿科玛 聚偏二氟乙烯树脂(PVDF)
KYNAR® 370 物性表
| TECHNICAL DATA SHEET KYNAR® 370FLUORINATED HOMOPOLYMER PELLET KYNAR® resins are fluorinated thermoplastic homopolymers. The properties are the same as standard grade: chemical resistance, resistance to UV, low permeation, high purity, excellent mechanical behavior with a higher HDT This grade is especially modified in order to have a reduced mold shrinkage, low thermal expansion factor Moreover, this grade has an increased thermal and electrical conductivity This grade is available as pellet form for injection, extrusion, compression | |||||||||||
| TYPE PVDFMAIN APPLICATIONS Molding | DELIVERY FORM PelletsTRANSFORMATION PROCESSES Injection Molding | ||||||||||
| RHEOLOGICAL PROPERTIES | ||||||||
| PROPERTIES | VALUE | UNIT | TEST STANDARD | |||||
| Melt viscosity, 230°C (445°F) at 100 s-1 | 8 – 13 | kPo | ASTM D3835 | |||||
| Shrinkage, Normal (t+24h) | 0.7 | % | ISO 294-4 | |||||
| Shrinkage, Parallel (t+24h) | 0.7 | % | ISO 294-4 | |||||
| Melt flow index (MFR), 235°C / 5 kg (455°F / 11 lb) | 5 – 17 | g/10min | ASTM D1238 | |||||
| Melt volume flow rate (MVR), 230°C / 3.8 kg (445°F / 8.3 lb) | 5.8 | cm³/10min | ISO 1133 | |||||
| MECHANICAL PROPERTIES | ||||||||
| PROPERTIES | VALUE | UNIT | TEST STANDARD | |||||
| Tensile modulus, 23°C (73°F) | 4135 | MPa | ASTM D638 | |||||
| Yield stress, 23°C (73°F) | 34.5 – 55.2 | MPa | ASTM D638 | |||||
| Yield strain, 23°C (73°F) | 0 – 4 | % | ASTM D638 | |||||
| Stress at break, 23°C (73°F) | 37.9 – 55.2 | MPa | ASTM D638 | |||||
| Flexural modulus, 23°C (73°F) | 5520 – 6890 | MPa | ASTM D790 | |||||
| Compression strength, 23°C (73°F) | 138 – 172 | MPa | ASTM D695 | |||||
| Izod impact unnotched strength, 23°C (73°F) | 0.267 – 0.534 | kJ/m2 | ASTM D256 | |||||
| Izod impact notched strength, 23°C (73°F) | 0.04 – 0.0801 | J/m | ASTM D256 | |||||
| Hardness, Shore D | 74 – 79 | ASTM D2240 | ||||||
| Coefficient of friction dynamic vs steel, 23°C (73°F) | 0.12 | ASTM D1895 | ||||||
| Coefficient of friction static vs steel, 23°C (73°F) | 0.18 | ASTM D1894 | ||||||
| THERMAL PROPERTIES | ||||||||
| PROPERTIES | VALUE | UNIT | TEST STANDARD | |||||
| Glass transition temperature, 10°C/min | -40 | °C | ISO 11357-1/-2 | |||||
| Limiting oxygen index (LOI) | 44 | % | ASTM D2863 | |||||
| Coefficient of linear thermal expansion, 23°C (73°F) | 36 – 45 | 10E-6 / °K | ASTM D696 | |||||
| Heat deflection temperature, 1.8 MPa | 120 | °C | ISO 75-1/-2 | |||||
| Heat deflection temperature, 1.8 MPa, 138°C/h | 110 – 127 | °C | ASTM D648 | |||||
| Heat deflection temperature, 0.45 MPa, 138°C/h | 132-149 | °C | ASTM D648 | |||||
| Melting temperature, 10°C/min | 170 | °C | ISO 11357-1/-3 | |||||
| ELECTRICAL PROPERTIES | ||||||||
| PROPERTIES | VALUE | UNIT | TEST STANDARD | |||||
| Dielectric constant, 1kHz | 28.8 – 33.5 | ASTM D150 | ||||||
| Relative permittivity, 100Hz | 33 | IEC 62631-2-1 | ||||||
| Dissipation factor, 100Hz | 610 | E-4 | IEC 62631-2-1 | |||||
| Dissipation factor | 0.06 – 0.08 | ASTM D150 | ||||||
| OTHER PROPERTIES | ||||||||
| PROPERTIES | VALUE | UNIT | TEST STANDARD | |||||
| Water absorption, Saturated in water at 23°C (73°F) | 0.02 | % | ISO 62 | |||||
| Density, 23°C (73°F) | 1.84 – 1.88 | g/cm³ | ISO 1183-1 | |||||
| SPECIAL CHARACTERISTICS . Flame & smoke | ||||||||
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