SUMIKASUPER™ E101

The SUMIKASUPER E101 series, a fully aromatic polyester resin, has outstanding abrasion resistance, self-lubricating properties, chemical resistance, and heat resistance.
Adding SUMIKASUPER E101 to solid lubricants such as polytetrafluoroethylene (PTFE) and graphite gives the material wear resistance and compression creep resistance, improving sliding properties.

Chemical structure

E101 Series

  E101-P E101-M E101-S
Median particle size (μm) 72 27 19.5
Bulk density 0.54 0.47 0.42
Heat loss (5 hours) (%) 0.9 0.9 0.9

These are measured values using Sumitomo Chemical's analytical methods.
The values are for reference only and are not guaranteed.

E101/PTFE general properties

  unit E101／PTFE
20／80wt%		 E101／PTFE
30／70wt%		 Glass fiber/PTFE
25/75wt%		 Carbon fiber/PTFE
25/75wt%
Specific gravity - 1.95 1.84 2.24 1.93
Tensile strength MPa 17 11 21 18
Tensile elongation % 290 230 310 70
Compressive strength          
0.2% offset MPa 11 12 9 10
1% Deformation MPa 9 9 9 10
10% Deformation MPa 18 23 18 8
25% Deformation MPa 32 33 30 48
Compressive modulus MPa 900 1,000 960 1,200
Compression Creep          
23℃, 14MPa, 24Hr % 4.2 2.1 7.7 1.7
100℃, 7MPa, 24Hr % 1.7 0.5 3.1 1.3

Sliding characteristics (versus SUS304)

  Wear coefficient K* Friction coefficient μ
E101/PTFE
30/70		 1.2×10-5 0.20
PTFE 6,000×10-5 0.18
GF/PTFE
25/75		 16.7×10-5 0.29
Graphite/PTFE
15/85		 308×10-5 0.19
Bronze/PTFE
30/70		 17.4×10-5 0.23
CF/PTFE
25/75		 24.3×10-5 0.24

* (mm/km)/(kgf/cm2) Pressure P=6kgf/cm2, Speed V=40m/min, Measurement time: 7 hours

Sliding characteristics (against aluminum JIS5052)

  Wear coefficient K* Friction coefficient μ Amount of aluminum wear
E101/PTFE
30/70		 1.5×10-5 0.21 Less than 0.1 mg
GF/PTFE
25/75		 2,200×10-5 0.34 67.4mg
CF/PTFE
25/75		 1,200×10-5 0.23 50.7mg

* (mm/km)/(kgf/cm2) Pressure P = 10kgf/cm2, Speed V = 40m/min, Measurement time: 20 hours (E101/PTFE), 2 hours (others)

Heat deterioration resistance

    E101/PTFE
20/80		 E101/PTFE
30/70
Retention Rate (%) Tensile strength 97 94
  Tensile elongation 104 95
Weight change (%)   -1.5 -2.3
Dimensional change (%) MD -0.05 -0.10
  TD -0.06 -0.12

E101/PTFE gasoline and engine oil resistance

    Gasoline resistance Engine oil resistance
    E101/PTFE
20/80		 E101/PTFE
30/70		 E101/PTFE
20/80		 E101/PTFE
30/70
Retention Rate (%) Tensile strength 98 94 97 91
  Tensile elongation 104 108 105 101
Weight change (%)   +1.06 +0.62 +0.41 +2.02
Dimensional change (%) MD +0.55 +0.56 +0.15 +0.40
  TD +0.47 +0.35 0 +0.18

The physical properties are measured using Sumitomo Chemical's analytical methods.
The values are for reference only and are not guaranteed.

The contents of this document are based on currently available materials, information, and data.
It may be subject to revision based on new findings.