TECHNICAL DATA SHEET
Description: LARIPUR 72D25 is a polyester based TPU used e.g. for the inj. Moulding of technical items,footwear features and wheel parts.
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Physical Properties
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Typical Value
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Unit
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Test Method
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Specific Gravity
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1.25
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gr/cm2
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DIN 53479
|
|
Shore Hardness
|
67
|
D
|
DIN 53505
|
|
Abrasion Loss
|
40
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mm3
|
DIN 53516
|
|
Tensile Modulus: 50%
|
26.5
|
N/mm2
|
DIN 53504
|
|
100%
|
28.2
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N/mm2
|
DIN 53504
|
|
300%
|
50.5
|
N/mm2
|
DIN 53504
|
|
Tensile Strength
|
71.2
|
N/mm2
|
DIN 53504
|
|
Elongation at Break
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380
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%
|
DIN 53504
|
|
Tear Strength
|
220
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N/mm
|
DIN 53515
|
|
Flexural Modulus
|
640
|
N/mm2
|
ISO 178
|
|
VICAT Softening Point
|
185
|
ÇC
|
ISO 306
|
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Torsion Test + 20°C
|
125
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N/mm2
|
DIN53447
|
|
- 20°C
|
500
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N/mm2
|
DIN53447
|
|
Ratio -20°C/+20°C
|
4
|
|
|
|
Impact Test - 20°C
|
3.5
|
KJ/m2
|
ASTM D256
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The grade also suitable for extrusion are indicated by the EG or AE end code and consequently they haveto be ordered with such code when used in this application.
This technical note has been written on baseing our present best knowledge but the above mentioned data have not to be released as a specification for the material inobject.
Properties reported in this Data Sheet are determined on annealed specimens obtained by injected test plaques and mostly represent an averageof values gathered from a significative number of production lots.
Even if we guarantee the quality consistency of the LARIPUR products we could periodically issue up-dated version of this Technical Data Sheet and modify the respective sales specification as well.
PROCESSRECOMMENDATION
Predrying Condition:
Material needs to be dried prior processing at 80°-90°C for 3 hours, preferably using a dehumidifying drier feeded by air exhibiting a dew point lower than -30°C.
Processing
Recommended Molding Temperature Profile
|
|
°C
|
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Zone 1
|
210
|
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Zone 2
|
215
|
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Zone 3
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220
|
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Nozzle
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215
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Being affected by type of machine used, processing condition and downstream equipment, the temperature profiles as given above has to be considered just as indicative.
Approvals EC and FDA food contactapproved.
Health and security The product is not considered to be dangerous, nevertheless Safety Material Data Sheet is available uponrequest
Supply and package LPR 72D25 is supplied in regular pellet form and it is packaged in 25 kg bags or 500 kg and 1000 kg octabins.
The information presented herein are given in good faith but without warranty. They are based on our experience, indicate our laboratory work results and do not necessarily indicate final product performance. We cannot be held liable for the results obtained with our products and for any loss or accident that may result from its use . Our suggestions do not release you from the obligation to check its validity and to test our products for both their process and end use application.COIM assumes no obligation or liability for the description, data and information given or result obtained as production testing and end product performance are the responsibility of the user. All our products are sold in accordance with our General Conditions of Sale. We don't make any warranties, express or implied, including, but not limited to the merchantability and fitness for a particular purpose.
