PVC

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