Material | LDPE - low density polyethylene |
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LDPE is the low density version of PE. This has less hardness, stiffness and strength compared to HDPE, but better ductility. It is opaque and only thin foils can be transparent.
LDPE is used for packaging like foils, trays and plastic bags both for food and non-food purposes. Used as protective coating on paper, textiles and other plastics, for instance in milk cartons. |
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Danish Name
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LDPE - lav massefylde polyethylen |
Category
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Plastics, Thermoplastics |
Products
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Wrapping foil for packaging Plastic bag (soft type that does not crackle) Garbage bag Tubes Ice cube plastic bag |
Processes
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Plastic moulding Plastic injection moulding Extrusion Film blowing |
Similar materials
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Soft PVC |
Price
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Low cost plastic (see also Plastics general overview) |
Environmen- tal notes
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Creation: Production of 1 kg of LDPE requires the equivalent of about 2 kg of oil (raw material and energy). Use: - Disposal: Used PE plastic can be recycled through remelting although there is a quality loss. Incineration is straightforward and comparable to oil, since PE only consists of hydrogen and carbon atoms. In an inceneration plant only water and carbon dioxide are produced. However common additives like UV-stabilizators (e.g. carbon black), dyeing agents and fire protectors can produce other waste products. Heating value is equivalent to 3/4 kg of oil. |
Additional Info
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LDPE has excellent resistance to water, moisture and most organic solvents and chemicals (except ones with aromatic or chlorine content). |
Photo
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Thomas Nissen (Computer graphics) |
Copyright
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