PVC is a thermoplastic elastomer with versatile characteristics. PVC plastics are divided into hard and soft PVC:
Soft PVC contains softener that gives the material elastic properties. The added softeners allow good variability in the hardness and durability of PVC.
PVC has many advantages:
- good isolator
- easy to colour
- low absorption of water
- resistant to acidity, alkalis, alcohol, oil and petrol.
Hard PVC can be machined well and can be shaped at temperatures of 120 – 150°C without machining.
Joins can be made using appropriate adhesives or hot air welding.
Alternatives to PVC are PP (Polypropylen) or PE (Polyethylen), which M+R also supply.
|Comparative parameter||PVC-U (PVC hard)||PVC-P (PVC soft)|
|Density in g/cm³||1,38 – 1,55||1,16 – 1,35|
|Tensile strength N/mm² DIN 53455||50 – 75||10 – 25|
|Elongation at break / tear strength % DIN 53455||10 – 50||170 – 400|
|Modulus of Elasticity N/mm² DIN 53457||1000 – 3500||xxx|
|Indentation hardness 10 second value N/mm² DIN 53456||75 – 155||xxx|
|Impact resistance kJ/m² DIN 53453||> 20||o.|
|Notch resistance kJ/m² DIN 53453||2 – 75||o. Br.|
|Specific volume resistivity Ω DIN 53482||> 1015||> 1011|
|Surface resistivity Ω DIN 53482||1013||1011|
|Service temperature in °C||−15 – 60||–|
|Relative permittivity DIN 53483 50 Hz εr||3,5||4 – 8|
|Relative permittivity DIN 53483 106 Hz εr||3,0||4 – 4,5|