PVC

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.

 

Cha­rac­te­ris­tics

Com­pa­ra­tive para­meter PVC-U (PVC hard) PVC-P (PVC soft)
Mecha­nical pro­per­ties:
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
Electrical cha­rac­te­ris­tics:
Rela­tive per­mit­ti­vity DIN 53483 50 Hz εr 3,5 4–8
Rela­tive per­mit­ti­vity DIN 53483 106 Hz εr 3,0 4–4,5