TPEE Yizheng Chemical Fiber TX722
TPEE Yizheng Chemical Fiber TX722
TPEE Yizheng Chemical Fiber TX722 is an engineering elastomer with Shore‑D hardness of 72. It is distinguished by outstanding resilience, impact resistance, fatigue resistance and tensile properties.
Main Applications
Modified Plastics: Applied for modified plastics with special requirements for toughness and hardness.
Cables & Films: Suitable for manufacturing cable and film products.
Spinning Products: Fit for spinning products requiring specific elasticity and softness.
Detailed Physical Properties
| Property Category | Test Item | Data | Test Standard |
|---|---|---|---|
| Physical Properties | Density | 1.29 g/cm³ | ASTM D792 |
| Melt Flow Rate (MFR) | 24 g/10min (240°C, 2.16kg) | ASTM D1238 | |
| Molding Shrinkage | 1.0% | ASTM D955 | |
| Hardness (Shore D) | 72 | — | |
| Mechanical Properties | Tensile Strength | 35 MPa | ASTM D638 |
| Elongation at Break | ＞300% | ASTM D638 | |
| Flexural Strength | 24 MPa | ASTM D790 | |
| Izod Notched Impact Strength | 8 kJ/m² | — |
Processing Parameters
| Processing Step | Key Parameters & Instructions |
|---|---|
| Drying Treatment | Thorough drying is mandatory! Recommended drying at 110℃ for ≥4 hours to keep moisture content below 0.1%. It is the prerequisite for successful molding to prevent bubbles and silver streaks in finished parts. |
| Extrusion | Barrel temperature: 240‑260℃ is recommended. |
| Injection Molding | ‑ Processing temperature: Typical TPEE processing range: 180‑230℃. In view of its high MFR (24 g/10min), start trial from the middle‑upper section of this temperature range. ‑ Injection pressure: 80‑120 MPa. ‑ Injection speed: Slow‑to‑medium injection speed is preferred. ‑ Mold temperature: General recommended mold temperature for TPEE: 4‑65℃. |
| Screw Selection | ‑ Compression ratio: (3.0‑3.5):1 for injection molding; (2.5‑4):1 for extrusion. ‑ L/D ratio: (15‑20):1 for injection molding; ≥24:1 for extrusion. |
Note: All information above is for reference only!
