Polycaprolactones
This series of products with high mechanical strength and abrasion resistance has increased resistance to hydrolysis and improved low temperature flexibility. Swelling in oils, greases and solvents is minimal. With excellent low compression set, these products are used in automotive and heavy-duty engineering applications.
Superior dynamic properties:
- Exceptional abrasion resistance and flex fatigue
- Low compression set at elevated temperatures
- High temperature performance to 135C (275F) in continuous use
We offer a unique service to our customers by "tailor making" materials to suit your exact requirements. If Polycaprolactones matches your need from the table below please contact us. We invite you to put our expertise in the areas of polyurethane to work for you.
| Polycaprolactones |
DIN |
175 ACCE |
185 ACCE |
190 ACCE |
195 ACCE |
160 DCCE |
170 DCCE |
175 DCCE |
| Hardness |
Shore A/D |
53505Â |
75A |
86A |
90A |
95A |
60D |
70D |
74D |
| Sp Gravity |
 |
 |
1.17 |
1.18 |
1.18 |
1.19 |
1.20 |
1.21 |
1.21 |
| Tensile Strength |
MPa |
53504 |
38 |
40 |
50 |
50 |
57 |
60 |
60 |
| Elong. at Break |
% |
53504 |
600 |
575 |
500 |
500 |
475 |
400 |
325 |
Tensile modulus
at 100% elongation |
MPa |
53504 |
5 |
7 |
11 |
14 |
19 |
25 |
30 |
Tensile modulus
at 300% elongation |
MPa |
53504 |
11 |
14 |
17 |
20 |
28 |
39 |
55 |
| Abrasion Resistance |
mm3 |
53516 |
35 |
35 |
35 |
30 |
30 |
30 |
35 |
| Tear Strength |
kN/m |
53515 |
80 |
100 |
115 |
130 |
150 |
190 |
235 |
Compression Set
23ºC for 70 hrs
70ºC for 20 hrs |
% |
53517 |
25
30 |
25
30 |
20
25 |
20
25 |
25
30 |
-
- |
-
- |
Physical Property Definitions
Hardness
The relative resistance of a material's surface to indentation by an indentor of specified dimensions under a specified load. Numerical hardness values represent either depth of penetration or convenient arbitrary units derived from depth of penetration. The hardness of elastomers is measured in the SHORE A and D scales, according to DIN 53505
Tensile Properties
Tensile properties are a measure of the force necessary to stretch a plastic and the percentage of stretching the plastic can withstand before breaking. Measurements are conducted according to DIN 53504.
- Tensile modulus indicates the amount of force necessary to elongate a sample by, say, 100% and 300% of its original length.
- Ultimate tensile strength is the maximum stress a material withstands at the point of rupture.
- Elongation at break is the total elongation of a sample at the point of rupture.
Tear Strength
Tear resistance is the force per unit of thickness required to initiate and propagate a tear in a direction perpendicular to the direction of the applied stress. It is measured according to DIN 53515
DIN Abrasion
This measures the resistance of a material to wearing away by contact with a rotating abrasive cylinder of a specified coarseness, under a specified load. It is measured according to DIN 53516
Compression Set
In this test the specimen is compressed by 20% or 25% of its original thickness (depending on hardness) and subjected to specified temperatures for specified times, e.g. 22 hrs @ 70ºC. The compression set figure is the difference between the original thickness of the specimen and the thickness after testing, expressed as a percentage of the original deflection employed.
Please Note: Eurothane carries out its physical property evaluation on specimens which have been dry heat annealed for 16 hours at 100ºC.
