Introduction to PE Sheets
PE sheets are thermoplastic plastic panels made primarily from polyethylene (Polyethylene) through extrusion, calendering, or molding processes. Depending on density, they are mainly classified into Low-Density Polyethylene (LDPE) sheets, High-Density Polyethylene (HDPE) sheets, and Ultra-High Molecular Weight Polyethylene (UHMW-PE) sheets.
Core Characteristics
| Characteristic |
Description |
Advantages |
| Excellent Chemical Stability |
Resistant to acids, alkalis, and corrosion, capable of withstanding erosion from various chemical media. |
Suitable for corrosive environments such as chemical and electroplating industries. |
| Good Impact Resistance |
Particularly UHMW-PE sheets, with impact strength twice that of PC sheets and five times that of ABS sheets. |
Ideal for manufacturing impact-resistant components and protective equipment. |
| Low Friction Coefficient |
Smooth surface, low friction coefficient, and good self-lubricating properties. |
Suitable for wear-resistant parts such as guides and liners. |
| Non-Toxic and Odorless |
Complies with FDA food safety standards. |
Applicable in food processing and packaging industries. |
| Good Low-Temperature Resistance |
Maintains good mechanical properties even at -70°C. |
Suitable for low-temperature environments |
Main Types and Performance Comparison
| Type |
Density (g/cm3) |
Characteristics |
Applications |
| LDPE Sheets |
0.91-0.93 |
Good flexibility, high transparency, easy to process. |
Packaging materials, shock-absorbing liners. |
| HDPE Sheets |
0.94-0.96 |
High hardness, good mechanical strength. |
Chemical equipment, mechanical parts. |
| UHMW-PE Sheets |
0.93-0.94 |
Excellent wear resistance, high impact strength. |
Wear-resistant liners, conveying machinery. |
Performance Parameters Table
| Performance |
Indicator |
LDPE Sheets |
HDPE Sheets UHMW-PE Sheets |
Test Standard |
| Tensile Strength (MPa) |
8-16 |
22-31 |
30-40 |
ASTM D638 |
| Impact Strength (kJ/m2) |
No break |
No break |
≥100 |
ASTM D256 |
| Wear Rate (mg) |
- |
- |
≤20 |
ASTM D1044 |
| Operating Temperature (°C) |
-70 to +80 |
-70 to +80 |
-70 to +80 |
- |
| Friction Coefficient |
0.3-0.4 |
0.2-0.3 |
0.1-0.22 |
ASTM D1894 |
Application Fields
1. Chemical Industry: Electroplating tanks, pickling tanks, chemical container linings.
2. Food Processing: Cutting boards, work surfaces, food containers.
3. Logistics and Transportation: Pallets, transport boxes, cargo liners.
4. Machinery Manufacturing: Machine guard panels, gears, bearings.
5. Medical Equipment: Medical partitions, protective equipment.
6. Sports Equipment: Ski boards, ice rink boards.
Processing and Usage Recommendations
1. Processing Methods:
· Machinable (cutting, drilling, milling).
· Thermoformable.
· Weldable (hot air welding, extrusion welding).
2. Selection Recommendations:
· Choose the appropriate type based on the application environment.
· Select models with UV inhibitors for outdoor use.
· UHMW-PE sheets are recommended for wear-resistant applications.
3. Maintenance:
· Clean the surface regularly.
· Avoid scratches from sharp objects.
· Avoid prolonged exposure to sunlight.
PE sheets are thermoplastic plastic panels with excellent overall performance, offering advantages such as corrosion resistance, impact resistance, and a low friction coefficient. By selecting different types of PE sheets (LDPE, HDPE, UHMW-PE), various application needs—from daily necessities to industrial equipment—can be met. Their non-toxic and odorless properties make them widely applicable in the food and medical fields.
