CPE 135A
Chlorinated Polyethylene (CPE135A)
CAS No.:63231-66-3
It is white powder and it’s a very promising thermoplastic material widely used as PVC impact modifier in the world.It can greatly improve the shock-resistance and tensile properties of PVC products. Besides, CPE is also used in building materials,rubber industry,electronic machinery,biomedicine,agriculture,paint,textile industry and packaging.
Packing: 25kg bag
产品详情
Chlorinated Polyethylene (CPE135A) is a type of chlorinated polyethylene (CPE) resin, which is a saturated thermoplastic polymer made by chlorinating high-density polyethylene (HDPE). It is a conventional grade widely used as an impact modifier and processing aid for rigid PVC products, with a chlorine content of approximately 35±2% and excellent compatibility with PVC.
Core Properties & Key Specifications
| Property | Typical Value | Test Standard | Purpose |
| Chlorine Content | 35±2% | GB/T | Determines compatibility and flexibility |
| Whiteness | ≥85 | GB/T | Aesthetics for light-colored products |
| Volatile Matter | ≤0.4% | GB/T | Processing stability |
| Tensile Strength | ≥9–10.8 MPa | GB/T 528 | Mechanical performance |
| Elongation at Break | ≥600–650% | GB/T 528 | Ductility |
| Shore Hardness (A) | ≤55–65 | GB/T 2411 | Flexibility |
| Thermal Stability (165°C) | ≥8 min | GB/T | Processing safety |
| Apparent Density | ≥0.5 g/cm³ | GB/T | Handling and mixing |
| Melting Enthalpy | ≤0.45–2.0 J/g | DSC | Degree of crystallinity |
| Impurity Particles | ≤30 particles/100g | GB/T | Product purity |
Core Advantages
- Excellent PVC Compatibility: Forms a three-dimensional network structure in rigid PVC to enhance impact resistance and low-temperature toughness.
- Good Processability: Improves melt flow during extrusion, suitable for profiles, pipes, and sheets.
- Durability: Offers weather resistance, ozone resistance, and chemical resistance, extending product service life.
Main Applications
- Rigid PVC Products: Window/door profiles, pipes, conduits, foam boards, extruded sheets, and laminates.
- PVC Modification: Enhances impact strength and processability of PVC compounds.
- Blending with Polymers: Can be blended with PE, PP, ABS, etc., to modify properties.
