Product
PRODUCT
High pressure low-density polyethylene (LDPE) is one of the main products of Shanghai Haihai Zhonglong Technology 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 LDPE is relatively low, usually between 0.910 and 0.940g/cm³ Between them, it provides lightweight characteristics.
- CrystallinityDue to the structural characteristics of its molecular chains, LDPE has a high crystallinity, which brings it good transparency and luster.
- FlexibilityLDPE has excellent flexibility, is easy to process and shape, and is not easily broken.
- Impact resistanceThis material has excellent impact resistance and is not easily broken even at low temperatures.
- Electrical insulationLDPE is a good electrical insulator suitable for the insulation layer of wires and cables.
- Chemical resistanceLDPE has good tolerance to most acids, bases, and organic solvents.
- Water absorptionIts water absorption is very low, so it can maintain its physical properties even in humid environments.
- BreathabilityCompared to other polyethylene, LDPE has a certain degree of breathability.
Packing materialFilm: used for food packaging, agricultural covering, garbage bags, etc
Shrinkage film and stretch film: used for packaging various products, providing good product protection and display effects.
Daily necessitiesBottles and containers: Containers used for liquid products such as detergents and cosmetics
Toys: Using their non-toxic and flexible properties to manufacture children's toys.
Wire and cableInsulation layer: provides good electrical insulation performance
Sheath: protects wires and cables from external environmental influences.
In the field of architectureWaterproof membrane: used for waterproofing engineering of basement, roof and other parts of buildings
Sound insulation materials: Composite with other materials, used to improve the sound insulation effect of buildings.
Agricultural applicationsAgricultural film: used for greenhouse cover, plastic film, etc., to increase crop yield
Irrigation pipelines: Utilize their chemical resistance and low cost to manufacture irrigation systems.
1. Differences between LDPE and HDPE:
(1) Density and hardness: LDPE has relatively low density and hardness, while HDPE has higher density and hardness, making HDPE products harder.
(2) Transparency: LDPE usually has good transparency, while HDPE often appears semi transparent or opaque.
(3) Temperature resistance: Compared to HDPE, LDPE has poor heat resistance and is prone to deformation at high temperatures.
(4) Toughness: LDPE has good flexibility and ductility, while HDPE is relatively brittle.
LDPE is mainly used for manufacturing films, packaging bags, insulation layers for wires and cables, etc. Due to its high hardness and heat resistance, HDPE is often used to manufacture products that require high strength, such as buckets, water pipes, cable sheaths, etc.
2. Differences between LDPE and LLDPE:
(1) Density and flexibility: LLDPE has a slightly higher density than LDPE, but LLDPE has better flexibility and stretchability.
(2) Strength: Although LLDPE has a slightly higher density, its strength is usually slightly lower than LDPE.
(3) Transparency and Gloss: The two are similar in transparency and gloss, but the surface of LLDPE is often more glossy.
LDPE: More suitable for manufacturing daily necessities such as films and packaging bags. LLDPE, due to its excellent flexibility and stretchability, is often used to manufacture products that require high ductility such as stretch films and winding films.