MV PVT data Linear expansion coefficient Representative values Other properties Stress crack

List of TOPAS® COC grades

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6. Product design

6.5 Other properties

Figs. 6-12 and 6-13 show weld strength. While strength is not greatly affected, elongation decreases due to the effect of notching. Table 6-2 shows pencil hardness. Fig. 6-14 shows fatigue characteristics. Fig. 6-15 shows dynamic solid viscoelasticity. In addition, values of Poisson ratio, etc., are shown.

Fig. 6-12  Characteristic changes by welding	Fig. 6-13  Characteristic changes by welding
Fig. 6-14  Tensile fatigue fracture characteristics at 1 Hz of TOPAS® COC 6013S-04

Table 6-2 Pencil hardness

Fig. 6-15 Dynamic solid viscoelasticity of TOPAS® COC (measuring frequency: 10 Hz)

Other data:

Poisson ratio:
  5013**, 6013S-04, 6015**, 6017** = 0.37
  6013EC-01 = 0.41

SP value: 7.8 (cal/cm³)^1/2,A16 (MPa)^1/2