Product Overview
CPE is chlorinated polyethylene polymers produced by combining chlorine and polyethylene in an aqueous slurry.Its saturated, linear high molecular structure enables CPE with many superior physical and chemical performances. As a high-performance additive, it enhances PVC applications by improving impact resistance, weather durability, and plasticizer retention in flexible films. Its adaptable properties make it ideal for cable insulation, rubber elastomers, and flame-retardant polyolefin compounds, while also serving as a reliable material for protective wire jacketing. CPE's multifunctional capabilities support diverse industrial solutions, offering manufacturers a practical balance of performance and process efficiency.
Product Parameters
CPE for plastic application
| ITEM |
CPE645 |
CPE8000 |
CPE135A |
CPE135AH |
| Chlorine% |
25±1 |
30±1 |
36±1 |
36±1 |
| Heat of fusion J/g ≤ |
2.0 |
1.5 |
2.0 |
2.0 |
| Volatile matter%≤ |
0.30 |
0.30 |
0.30 |
0.30 |
| Impurity particles pcs/200g≤ |
40 |
40 |
40 |
40 |
| Shore A Hardness≤ |
76 |
65 |
60 |
60 |
| Tensiles strength MPa≥ |
8.0 |
8.0 |
8.0 |
8.0 |
| Elongation at break%≥ |
600 |
700 |
700 |
700 |
| Application |
PVC impact modifier |
Replacing MBS as impact modifier for translucent PVC products |
Used as impact modifier in high speed extrusion pf PVC products |
Used as impact modifier in PVC products |
| Property |
In particular,improving the low temperature resistance of products can promote the rapid plasticization of PVC,good impact modification performance,and give PVC higher melts strengt |
Good processability and impact resistant |
It can promote the rapid plasticization of PVC and has good impact resistant |
More fillers can be added because of the higher impact resistance |
Key Properties (as an Impact Modifier)
| Property |
Mechanism |
Typical Parameters |
| High Elasticity & Toughness |
Chlorine atoms disrupt crystallinity, forming a flexible network to absorb impact energy. |
Elongation at break: ≥300% |
| Excellent Compatibility |
Polar similarity with PVC ensures uniform dispersion in the matrix, avoiding phase separation. |
Chlorine content: 35%-40% (optimal compatibility) |
| Low-Temperature Resistance |
Maintains flexibility at -30°C, preventing brittle fractures. |
Brittleness temperature: ≤-40°C |
| Chemical Resistance |
Chlorine atoms provide resistance to oils, acids, and alkalis, suitable for harsh environments. |
Resists 10% NaOH/30 days (no significant change) |
| Processing Stability |
Thermal decomposition temperature ≥180°C, suitable for high-temperature processing (e.g., extrusion, injection molding). |
MFR (190°C): 1-5 g/10min |
Advantages vs. Other Impact Modifiers
| Modifier Type |
Advantages |
Limitations |
Ideal Applications |
| CPE |
Weather-resistant, low cost, broad processing window |
Lower transparency (requires MBS blending) |
Outdoor, automotive, cables |
| MBS |
High transparency, balanced impact/rigidity |
Poor UV resistance (yellowing) |
Transparent packaging, appliances |
| ACR |
High impact, heat resistance |
Expensive (30%-50% higher than CPE) |
High-end PVC profiles, medical devices |
| EVA |
Excellent flexibility, low-T performance |
Poor PVC compatibility (needs compatibilizers) |
Footwear, soft films |
Uses
1. PVC Modification & Enhancement
Rigid PVC Products
·Impact modifier for window profiles/pipes (300-500% strength improvement)
·Weather resistance booster for outdoor building materials (UV stabilization)
Flexible PVC Applications
·Plasticizer stabilizer for wire sheathing/synthetic leather (prevents migration)
2. Wire & Cable Industry
Insulation Systems
·105°C-rated power cable insulation
·Flame-retardant jacketing (Oxygen Index ≥30%)
Specialty Cables
·Chemical/oil-resistant layers for mining/marine cables
3. Rubber Product Engineering
Rubber Replacement Solutions
·Ozone-resistant conveyor belts/seals modification
·Cost-effective automotive rubber components
Thermoplastic Elastomers (TPE/TPR)
·Soft-touch layers for footwear/grip handles
4. Flame Retardant Systems
·Polyolefin Compounds:10-15% addition → OI 28%+
·Electronics Housing:UL94 V-0 compliance (halogen-free)
·Building Insulation:Smoke-suppressed synergy with ATH/MDH
5. Cross-Industry Solutions
·Coatings & Adhesives: Flexibility/Adhesion improvement
·Automotive: Fuel line permeation barrier
·Magnetic Materials: Flexible base for rubber magnets
Application Guide
CPE (Chlorinated Polyethylene) is a polymer obtained by chlorination modification of polyethylene (PE), with a chlorine content typically ranging from 25% to 45%. As an impact modifier, CPE is widely used to toughen plastics like PVC and ABS due to its exceptional flexibility, weather resistance, and compatibility, significantly enhancing the impact strength of materials.
1. Toughening PVC Rigid Products (Primary Use)
Window/Door Profiles: Adding 8-12% CPE improves impact resistance (falling dart impact strength ≥15 kJ/m²), replacing traditional ACR/MBS modifiers.
Pipes & Sheets: Used in UPVC drainage pipes and construction templates, enhancing low-temperature impact performance (>90% pass rate at -10°C).
2. Automotive & Transportation
Dashboards, Bumpers: Blended with ABS/PP to improve weather resistance and gravel impact resistance.
EV Battery Housings: Flame-retardant CPE (chlorine content ≥40%) + ATH synergists meet UL94 V-0 standards.
3. Wire & Cable
Insulation Sheaths: CPE-modified PVC sheaths resist oil and cracking, ideal for outdoor cables (e.g., photovoltaic cables).
4. Other Fields
Packaging: Transparent CPE (low chlorine content) for food packaging films, balancing toughness and clarity.
Footwear: Soft CPE (with DOP) replaces rubber to reduce costs.
Usage Guidelines
1.Dosage:
Rigid PVC: 5-15% (adjust based on impact requirements).
Flexible products: 10-20% (use with plasticizers).
2.Processing:
Dry-blend with PVC resin before extrusion/injection (no pre-activation needed).
Processing temperature: 160-190°C (avoid >200°C to prevent decomposition).
3.Formulation Tips:
Add stabilizers (Ca/Zn or lead-based) to prevent HCl release during processing.
For transparent products, blend with MBS (e.g., CPE 240S + 5% MBS).
Market Trends:
1.Eco-Friendly: Halogen-free flame-retardant CPE (e.g., phosphorus-nitrogen systems) for RoHS/REACH compliance.
2.High Performance: Nano-SiO2/carbon nanotube-reinforced CPE for EV battery components.
3.Recycled CPE: Chlorinated recycled PE to reduce carbon footprint (e.g., Sabic's PCR-CPE).
Detailed Photos
Company Profile
Weifang Phoenix New Material Co., Ltd
Weifang Phoenix New Material Co., Ltd is a high-tech chemical enterprise integrating research and development,
production, sales and technical services. Headquartered in Weifang, Shandong Province. Its production facilities are
ocated in Weifang Binhai Chemical Industry Park, a state-approved chemical industry park.
Our mission is to be the leading sustainable "one-stop shop" chemical solutions company, providing customers
with innovative, science-led, differentiated products and solutions. To this end, we provide a safe and healthy working
environment for our employees and comply with all local, national and international regulations.
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