Shin-Etsu Sepla Film

Shin-Etsu Sepla Film® is a Super Engineering Plastic Films; ultra thin and non-stretched.
  • non-stretched film of non-crystallized plastics
  • non-stretched and low crystallized film of crystallized plastics
  • several surface patterns
 
PEEK (Polyether Ether Ketone) offers outstanding physical, thermal and chemical properties resulting in excellent resistance against thermal, chemical and mechanical stress and wear.
Shin-Etsu Polymer's knowledge in micromoulding is used to create low internal tension ultrathin films starting from 3 μm of thickness.
 
Features:
  • Ultra thin film created by non-stretching micro moulding in low crystallizing state
  • High tensile strength and rigidity
  • Superior heat tolerance
  • Superior friction resistance
  • Superior chemical resistance
  • Roughening of film surface optional
  • Sliding and conductivity characteristics optional (composite blending) 
Shin-Etsu Sepla Film® Extended Material Property Comparison
     Unit  PA9T  PEEK  Test method
 Crystalline/Amorphous    -  Crystalline  Crystalline  
 Specific gravity    -  1.14  1.31  
 Glass transition point
 Melting point
   °C  125
 300
 146
 339
 DSC
 ΔT: 10°C/min.
 Linear expansion coefficient  MD*
 TD*
 °C-1    31 • 10-6
 101 • 10-6
 JIS K7197
 ΔT: 5°C/min.
 Elasticity or Tensile Modulus  MD*
 TD*
 N/mm2  2168
 2183
 3720
 2940
 JIS K6781
 (23°C/50%RH)
 test speed:
 50 mm/min. 
 Yield strength  MD*
 TD*
 N/mm2  -  80
 75
 Tensile strength  MD*
 TD* 
 N/mm2  81
 84
 135
 83
 Elongation  MD*
 TD* 
 %  223
 235
 72
 239
 Breakdown voltage    kV/mm    22.6  JIS C2110
 Elec cylinder:
 (23°C/50%RH)
 Dielectric strength    kV/mm  -  16  
 Dielectric constant    -  -  3.30  
 Dielectric tangential loss    -  -  0.003  
 Thermal conductivity    W/m•K    0.25  
 Flame retardance (UL94)    -  -  V-0
 (1.5 mm)
 
 Water absorbing property
 (23°C / 24 hrs)
   -  -  0.1  
 Density    kg/dm3    1.32  
 Gas permeability  O2
 N2
 CO2
 cc(stp)/m2    3.0  • 103
 7.5  • 101
 5.9  • 103
 JIS K7126-1
 (Diff pressure method)
 (24 hrs @ atm)

 * MD is machining direction / TD is transverse direction

PEEK - Extended Material Property at 120 ºC
       Sepla Film™ / PEEK resin  
     Unit  T = 3 µm  T = 5 µm  T = 7 µm  Test method
 Tensile strength  MD*
 TD*
 N/mm2  69
 59
 
 
 67
 45
 JIS K7160-3
 (120°C)
 Tensile speed:
 50 mm/min.
 Tensile strain at break  MD*
 TD*
 %  107
 243
   94
 192
 Modulus of elasticity in tension (Young)  MD*
 TD*
 N/mm2  1980
 1380
   1970
 1550 
 Degree of crystallization    %  < 10  < 10  20 ~ 30  

 * MD is machining direction / TD is transverse direction

PEEK - Dimensions and tolerances
     Unit     Test method
 Thickness of film  T  µm
 3 ~ 50 ± 5% *
 6 ~ 50 ± 5% **
 The average value complaint with
 JIS C2330:2010 and IEC60674-3-1:1998
 n5*20
 Width of film (on roll)  W  mm  650 or 1310  
 Length of film on roll (5 µm T)  L  m  2000 (3~6 µm T)
 1000 (7~20 µm T)
   750 (21~25 µm T)
   300 (26~50 µm T)
 
 Core of roll  ∅  inch  3 or 6  

*   Non-stretched film of amorphous plastics
** Non-stretched and high crystallized film of crystallized plastics

Note:
Every item or numerical values indicated herein are typical, measured by Shin-Etsu and out of guarantee.
The quality of the assembled parts and materials is out of guarantee.
Please make sure to review the purpose and conditions of use and practice own tests.