High-Quality PE Cable Material from China - Leading Suppliers and Factory for HDPE, MDPE, LDPE, LLDPE Solutions
Product Feature
1. HDPE (High Density Polyethylene)
HDPE is a kind of high crystallinity, non-polar thermoplastic resin produced by ethylene copolymerization. The appearance of the original HDPE is milky white, and it is translucent to a certain extent in the meager section. It has excellent resistance to most domestic and industrial chemicals, and it can resist the corrosion and dissolution of strong oxidants (concentrated nitric acid), acid and alkali salts and organic solvents (carbon tetrachloride). The polymer does not absorb moisture and has good water resistance to steam, which can be used for moisture and seepage protection.
2. MDPE (Medium Density Polyethylene)
MDPE is characterized by environmental stress cracking resistance and long-term strength retention. The relative density of MDPE is 0.926-0.953, the crystallinity is 70%-80%, the average molecular weight is 200,000, the tensile strength is 8-24 mpa, the elongation at break is 50%-60%, the melting temperature is 126-135℃, and the melt flow rate is 0.1-35 g /10 minutes. Thermal deformation temperature (0.46 mpa) 49-74℃.
3. LDPE (Low Density Polyethylene)
Low density polyethylene is the lightest variety in polyethylene resin. Compared with high-density polyethylene, its crystallinity (55%-65%) and softening point (90-100 ℃) are lower. It has good softness, extensibility, transparency, cold resistance and processability. Its chemical stability is good, can withstand acid, alkali and salt aqueous solution; Good electrical insulation and gas permeability; Low water absorption; Easy to burn. The property is soft, with good extensibility, electrical insulation, chemical stability, processing performance and low temperature resistance (resistance to -70℃).
4. LLDPE (Linear Low Density Polyethylene)
Compared with LDPE, LLDPE has the advantages of high strength, good toughness, strong rigidity, heat resistance, cold resistance, etc. LLDPE also has good environmental stress cracking resistance, tear resistance and other properties, and can resist acid, alkali, organic solvents and so on.
Note: PE plastic particles are widely used and need to be customized according to customer requirements in different scenarios.
Product Parameter
| Name | HDPE | LDPE | LLDPE |
|---|---|---|---|
| Odor, toxicity | Non-toxic, tasteless, odorless | Non-toxic, tasteless, odorless | Non-toxic, tasteless, odorless |
| Density | 0.940~0.976g/cm³ | 0.910~0.940g/cm³ | 0.915~0.935g/cm³ |
| Crystallinity | 85%-65% | 45-65% | 55-65% |
| Molecular structure | Contains only carbon-carbon and carbon-hydrogen bonds, which require more energy to break | The polymer has a smaller molecular weight and requires less energy to break | Linear structure, fewer branch chains, short chains, require less energy to break |
| Softening point | 125-135℃ | 90-100℃ | 94-108℃ |
| Mechanical property | High strength, good toughness, strong rigidity | Poor mechanical strength | High strength, good toughness, strong rigidity |
| Tensile strength | High | Low | Higher |
| Elongation at break | Higher | Low | High |
| Impact strength | Higher | Low | High |
| Moisture-proof and water-proof performance | It has good permeability to water, water vapor and air, low water absorption and good permeability resistance | Poor moisture and air insulation | It has good permeability to water, water vapor and air, low water absorption and good permeability resistance |
| Acid, alkali, corrosion, organic solvent resistance | Resistant to strong oxidant corrosion; Resistant to acid, alkali and various salts; Insoluble in any organic solvent, etc. | Acid, alkali, salt solution corrosion resistance, but poor solvent resistance | Resistant to acid, alkali and organic solvents |
| Heat resistance/cold | Good heat and cold resistance, at room temperature and even at -40F low temperature, excellent impact resistance, low temperature embrittlement temperature < -90℃ | Low heat resistance, low temperature embrittlement temperature < -70℃ | Good heat and cold resistance, low temperature embrittlement temperature < -90℃ |
| Resistance to environmental stress cracking | Good | Better | Good |
