Product Overview
HCPE is a type of Chlorinated Polymer which contains chlorine at 65-69%. It is transparent, hard and brittle thermoplastic resins. It has high chemical stability, good salt water resistance and good ultraviolet resistance. It is readily soluble in organic solvents such as toluene, xylene and esters, forming a colorless to pale yellow, transparent solution. When this solution is applied to the surface of metal, concrete, paper etc., the solvent readily vaporizes at room temperature to leave a transparent, hard and lustrous glass-like film. This film resists the permeation of moisture and oxygen gas, and shows high resistance to various chemicals such as acids and alkalis. It protects the substrates from corrosion, and also serves as a top coating for decorative purposes.
Product Parameters
HCPE (Highly Chlorinated Polyethylene) Product Parameters Table
| Parameter |
Test Standard |
Typical Value/Range |
Unit |
Remarks |
| Chlorine Content |
ASTM D1303 |
30% - 45% |
wt% |
Determines weather/oil resistance, flame retardancy |
| Density |
ASTM D792 |
1.10 - 1.35 |
g/cm³ |
Increases with higher chlorine content |
| Melt Flow Rate (MFR) |
ASTM D1238 (190°C) |
0.1 - 10.0 |
g/10min |
Indicates processability and flowability |
| Thermal Decomposition Temp. |
TGA (Thermogravimetric Analysis) |
≥180°C |
°C |
Critical for thermal stability |
| Tensile Strength |
ASTM D638 |
10 - 25 |
MPa |
Correlates with chlorine content and molecular weight |
| Elongation at Break |
ASTM D638 |
200% - 600% |
% |
Higher values indicate flexibility |
| Shore A Hardness |
ASTM D2240 |
60 - 90 |
- |
Hardness increases with chlorine content |
| Volatile Content |
ASTM D5667 |
≤0.5% |
% |
Affects processing bubbles and product quality |
| Appearance |
Visual Inspection |
White/light-yellow pellets or powder |
- |
Uniform dispersion, free of impurities |
| Solubility |
Solvent Test |
Soluble in aromatic/chlorinated hydrocarbons |
- |
Insoluble in water, alcohols |
| Flame Retardancy |
UL 94 |
V-0 to HB Rating |
- |
Enhanced by high chlorine content |
| Primary Applications |
- |
Wire & cable, oil-resistant hoses, waterproof membranes, PVC modification |
- |
Application varies with chlorine content and MFR |
Key Parameter Guidelines:
Chlorine Content:
30%-35%: Used for PVC toughening (window profiles, pipes).
35%-40%: Balanced weather resistance and processability (waterproof membranes, cable sheaths).
≥40%: High oil/flame resistance (automotive hoses, specialty rubber products).
Melt Flow Rate (MFR):
Low MFR (0.1-2.0): Suitable for extrusion (pipes, sheets).
High MFR (5.0-10.0): Ideal for injection molding or high-flow applications.
Thermal Stability:
Requires stabilizers (e.g., lead salts, calcium-zinc) to prevent HCl release during processing.
Application Guide
1. High-Performance Structural Adhesives
Applications:
·Automotive Manufacturing: Bonding metal-to-plastic components (e.g., door panels, dashboard brackets), requiring oil resistance, vibration resistance, and high-temperature tolerance (-40°C to 120°C).
·Aerospace: Lightweight composite bonding (carbon fiber/aluminum alloys), where HCPE provides strength and fuel corrosion resistance.
2. Sealants & Gap Fillers
Applications:
·Construction Sealants: Weatherproofing curtain wall joints, window/door gaps (UV and rain resistance).
·Industrial Equipment Sealing: Chemical pipelines, storage tanks (HCPE with ≥40% chlorine for acid/alkali resistance).
3. Pressure-Sensitive Adhesives (PSA)
Applications:
·Electronic Tapes: High-temperature labels, smartphone screen mounting tapes (stable at >80°C).
·Industrial Tapes: Oil-resistant surface protection films, pipe-wrapping tapes.
4. Hot-Melt Adhesives
Applications:
·Packaging: Carton sealing, bookbinding (fast curing for high-speed production lines).
·Footwear: Midsole-to-upper bonding in sports shoes (flexible and non-toxic).
5. Conductive/Shielding Adhesives
Applications:
·Electronics: EMI shielding adhesives for 5G devices, circuit board grounding (with conductive fillers like silver powder).
·EV Batteries: Bonding battery modules to prevent electromagnetic interference (EMI).
Advantage
Key Performance Advantages of HCPE in Adhesives
| Property |
Benefits for Adhesives |
Typical Requirements |
| High Chlorine Content (≥40%) |
Enhanced chemical resistance (oil, acids) |
Chlorine: 40%-45%, volatiles ≤0.3% |
| Low MFR (0.1-2.0) |
High viscosity for solvent-free formulations |
MFR 0.5-1.5 g/10min (190°C) |
| High Elongation (≥500%) |
Superior flexibility and peel resistance |
Tensile strength ≥15 MPa, elongation ≥500% |
| Flame Retardancy (UL 94 V-0) |
Meets fire safety standards in electronics, EVs |
Oxygen index ≥28% |
1. High-Performance Structural Adhesives
Advantages:
Chemical Resistance: Withstands gasoline, lubricants, and hydraulic fluids.
Flexibility: Accommodates thermal expansion and mechanical stress, reducing crack risks.
2. Sealants & Gap Fillers
Advantages:
Long-Term Durability: Outdoor service life exceeding 10 years, outperforming silicone-based sealants.
Strong Adhesion: Bonds to PVC, metals, concrete, and other substrates.
3. Pressure-Sensitive Adhesives (PSA)
Advantages:
Tunable Tack: Adjust chlorine content (30%-45%) to balance initial adhesion and holding power.
Weather Resistance: Maintains adhesion stability in humid or fluctuating environments.
4. Hot-Melt Adhesives
Advantages:
Low-Temperature Processing: Tunable melting point (120°C-160°C) reduces energy consumption.
Eco-Friendliness: Solvent-free, compliant with VOC regulations (e.g., EU REACH).
5. Conductive/Shielding Adhesives
Advantages:
Electrolyte Resistance: HCPE matrix resists corrosion in battery environments.
Nanocompatibility: Compatible with carbon nanotubes, graphene, and other nanomaterials.
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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