Low-Density Polyethylene (LDPE)
This product ships to
14
countries.
EXW, FOB, DAP, CPT, FCA, CFRWhat is Low-Density Polyethylene (LDPE)?
Low-density Polyethylene (LDPE) is a semi-rigid polymer with low crystallinity (50-60%) made from the monomer ethylene. It is composed of 4,000 to 40,000 carbon atoms, with many short branches. Compared to HDPE, LDPE has a higher level of short and long side-chain branching.
LDPE Production Method
Two basic processes are commonly used to produce LDPE: stirred autoclave or tubular routes. Its general manufacture involves the compression of ethylene gas, polymerization of ethylene (or ethane monomer) at high pressure with additives like antioxidants and stabilizers using an initiator, and finally gas separation.
LDPE Applications
LDPE is a commonly used plastic often used to make:
- Playground slides
- Plastic wraps and bags
- Plastic containers and battery cases
- Plastic parts for computer components such as hard disk drives, screen cards, and optical disc drives
- Water pipes and hoses
- Housewares
- Electrical components
- Parts that require flexibility
- Dispensing bottles
- Corrosion-resistant surfaces
LDPE Main Properties
- Fair flexibility and toughness
- Excellent resistance to dilute and concentrated acids, alcohols, bases, and esters
- Good resistance to aldehydes, ketones, and vegetable oils
- Limited resistance to aliphatic and aromatic hydrocarbons, mineral oils, and oxidizing agents
- Temperature resistance up to 80°C continuously and 95°C for shorter periods
- Low-cost with good processability
- High impact strength at low temperature
- Excellent electrical insulating properties
- Very low water absorption
- Transparent in thin film form
LDPE Advantages
- Decreasing greenhouse emissions and carbon footprint
- Enhancing films strength and recyclability
- Improving tear, puncture and dart strength
- Maintaining high melt strength
- Showing excellent optical properties
- Presenting excellent shrink performance
LDPE Disadvantages
- Sensitivity to stress cracking
- Low strength, stiffness and maximum service temperature (this limits LDPE’s usage in applications requiring extreme temperatures)
- High gas permeability
- Poor UV resistance
- High flammability
What is Low-Density Polyethylene (LDPE)?
Low-density Polyethylene (LDPE) is a semi-rigid polymer with low crystallinity (50-60%) made from the monomer ethylene. It is composed of 4,000 to 40,000 carbon atoms, with many short branches. Compared to HDPE, LDPE has a higher level of short and long side-chain branching.
LDPE Production Method
Two basic processes are commonly used to produce LDPE: stirred autoclave or tubular routes. Its general manufacture involves the compression of ethylene gas, polymerization of ethylene (or ethane monomer) at high pressure with additives like antioxidants and stabilizers using an initiator, and finally gas separation.
LDPE Applications
LDPE is a commonly used plastic often used to make:
- Playground slides
- Plastic wraps and bags
- Plastic containers and battery cases
- Plastic parts for computer components such as hard disk drives, screen cards, and optical disc drives
- Water pipes and hoses
- Housewares
- Electrical components
- Parts that require flexibility
- Dispensing bottles
- Corrosion-resistant surfaces
LDPE Main Properties
- Fair flexibility and toughness
- Excellent resistance to dilute and concentrated acids, alcohols, bases, and esters
- Good resistance to aldehydes, ketones, and vegetable oils
- Limited resistance to aliphatic and aromatic hydrocarbons, mineral oils, and oxidizing agents
- Temperature resistance up to 80°C continuously and 95°C for shorter periods
- Low-cost with good processability
- High impact strength at low temperature
- Excellent electrical insulating properties
- Very low water absorption
- Transparent in thin film form
LDPE Advantages
- Decreasing greenhouse emissions and carbon footprint
- Enhancing films strength and recyclability
- Improving tear, puncture and dart strength
- Maintaining high melt strength
- Showing excellent optical properties
- Presenting excellent shrink performance
LDPE Disadvantages
- Sensitivity to stress cracking
- Low strength, stiffness and maximum service temperature (this limits LDPE’s usage in applications requiring extreme temperatures)
- High gas permeability
- Poor UV resistance
- High flammability
Related Products
