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.
|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|