CPE impact modifier, i.e. chlorinated polyethylene impact modifier, is a highly effective modifier widely used in the plastics industry, especially in the modification of PVC. CPE is prepared by chlorinating polyethylene, a process that increases the content of chlorine atoms in the molecular chain of the polyethylene molecule, thereby significantly altering its physical and chemical properties. Depending on the product properties, CPE can be used as an impact modifier, a plastic modifier, and a synthetic speciality rubber. CPE impact modifier has excellent weathering and chemical resistance and good compatibility, making it an ideal choice for improving the impact resistance of plastic materials.
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Item | Index |
Chlorine content (%) | 35+/-1 |
Heat stable time (165℃) ≥ | 8 |
Volatile Matter content (%) ≤ | 0.3 |
Remains crystallinity (%) ≤ | 2 |
Tearing Strength (Mpa) ≥ | 8.0 |
Residue 0.441mm bore diameter ≤ | 0.5 10 |
Shore Hardness （A） ≤ | 58 |
Ca content（%） ≤ | 1.2 |
Apparent Density (g/ml) ≥ | 55 |
Impurity Particle PC/(25×60)cm2 ＜ | 3 |
1. Improvement of impact resistance:
CPE can significantly improve the impact resistance of PVC and other plastics, especially at low temperatures, so that the CPE impact modifier can withstand greater impact without rupture.
2. Improve processing performance:
The addition of CPE impact modifier can improve the fluidity of plastics, reduce the processing temperature, reduce defects in the processing, improve production efficiency and product quality.
3. Improvement of flame resistance:
CPE impact modifier can also improve the flame resistance of plastic materials, which is especially important for applications that require improved flame resistance.
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