Product
PRODUCT
Linear Low Density Polyethylene (LLDPE) is one of the main products of Shanghai Haihai Xinyun International Trade Co., Ltd. It is highly praised for its reliable quality, stable performance, and reasonable price. The manufacturer has sufficient supply. Please come here to learn more details. For procurement, please contact 021-56070698
- DensityThe density of LLDPE is usually between 0.915 and 0.935g/cm³ Between them, slightly higher than LDPE but lower than HDPE.
- CrystallinityCompared with LDPE, LLDPE has higher crystallinity, providing it with better mechanical properties.
- FlexibilityLLDPE has excellent flexibility and stretchability, which means it can be easily stretched without easily breaking.
- Impact resistanceUnder low temperature conditions, LLDPE can still maintain good impact resistance and is not easily broken.
- TransparencyAlthough not as transparent as LDPE, LLDPE still has a certain degree of transparency.
- Heat sealing performanceLLDPE has excellent heat sealing performance and is suitable for various heat sealing processes.
- Chemical resistanceSimilar to most polyethylene, LLDPE has good resistance to most acids, bases, and organic solvents.
Packaging fieldStretch film and wrapping film: Utilizing their excellent stretchability, manufacture stretch film and wrapping film for wrapping and securing goods
Heavy packaging bag: used for packaging heavy items such as rice and fertilizers
Food packaging: suitable for certain food packaging that requires a certain degree of flexibility and impact resistance.
Daily necessitiesLids and stoppers: Use their flexibility and chemical resistance to manufacture lids and stoppers for various containers and bottles
Toys: Create toy parts that require stretching and bending.
Agricultural applicationsAgricultural film: used to cover greenhouses and increase crop yields
Drip irrigation belts: Manufacturing drip irrigation systems to help farmers irrigate more effectively.
Wire and cableInsulation layer and protective layer: Provide insulation and protection for wires and cables to ensure their safe operation.
1. Differences between LLDPE and LDPE:
(1) Density and Structure: The density of LLDPE is usually lower than that of LDPE, mainly due to their different molecular structures. The molecular chain structure of LLDPE is more linear, while LDPE has more short branched chains.
(2) Strength and toughness: Due to structural differences, LLDPE typically has higher tensile strength and toughness, while LDPE is relatively softer.
(3) Usage: LLDPE is commonly used in the manufacturing of films, packaging materials, pipelines, etc. due to its high strength and toughness. LDPE is commonly used in the manufacturing of extruded coatings, wire and cable insulation, heat shrink films, and so on.
2. Differences between LLDPE and HDPE:
(1) Density and hardness: HDPE has a higher density and therefore a higher hardness. This makes HDPE more rigid and wear-resistant than LLDPE.
(2) Heat resistance: HDPE has a higher melting point than LLDPE, therefore it has better heat resistance.
(3) Usage: HDPE is commonly used to manufacture products that require high strength and wear resistance, such as plastic bottles, barrels, pipes, cable insulation, etc. LLDPE is more commonly used in packaging and film applications.