PEEK physical property made by Smart Molding® method
Our developed Smart Molding® manufacturing process has contributed to further improve some properties of the high-functional resin super engineering plastic PEEK materials. And by our method which reduce waste, we can provide our products at a low price.
We show the values of the some physical tests for PEEK test pieces made by general injection molding and our developed Smart Molding, in the below.
• Comparison of PEEK physical property which made by general injection molding and Smart molding®.
| Unit | Injection molding | Smart Molding® | ||||
|---|---|---|---|---|---|---|
| Specific gravity | 1.29 | 1.30 | ||||
| Melting point | ℃ | 337.5 | 341.0 | |||
| Flexural strength (at a rate of 2 mm/min) | MPa | 145 | 170 | |||
| Flexural modulus | MPa | 3400 | 4200 | |||
| Tensile break strength | MPa | 77 (50mm/min) | 81 (50mm/min) | 100 (5mm/min) | ||
| Tensile modulus | MPa | 3620 | 3690 | |||
| Hardness (Shore D) | Hs | 87 | 89 | |||
| Coefficient of linear expansion ≦Tg｜>Tg |
Lengthwise | x10-5/K | 5.06 | 10.81 | 5.76 | 11.67 |
| Crosswise | 5.94 | 13.14 | 5.85 | 12.60 | ||
| Thickness | 6.75 | 15.84 | 4.98 | 11.71 | ||
| Deflection temperature under load (1.80MPa) | ℃ | 148.5 | 161.3 | |||
Tested in March 5, 2015.
Tensile testing machine: Autographag-x plus-20kN manufactured by Shimadzu, Shore D hardness testing: In accordance with ASTM D2240,
Melting point: X-DSC7000 manufactured by SII, Specific gravity: ME-33360 manufactured by Mettler,
Coefficient of linear thermal expansion: Apparatus of thermo-mechanical analysis TMA (Exstar TMA/SS7100/SII Nano Technology USA Inc.),
Deflection temperature under load: Thermal deformation measurement equipment (Heat Distortion Tester HD-PC manufactured by Yasuda),
Test samples: In conformity with ISO standards.
• The feature of KDA's PEEK
• In the tests, Flexural strength, Flexural modulus, Tensile break strength, the values of Smart Molding ® are higher than the general injection molding's.
• The value of Deflection temperature under load, the Smart molding®'s 161.3 degree is higher than the general injection molding's 148.5 degree. There is a raise of heat resistant temprature at the Smart Molding®'s.
• Others
The manufacturing process of our original method "Smart Molding®" is differ from generaly injection molding's. So as a feature in case of thin parts, our products are hard to warp.
