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  2. High-density polyethylene - Wikipedia

    en.wikipedia.org/wiki/High-density_polyethylene

    HDPE is known for its high strength-to-density ratio. [4] The density of HDPE ranges from 930 to 970 kg/m 3. [5] Although the density of HDPE is only marginally higher than that of low-density polyethylene, HDPE has little branching, giving it stronger intermolecular forces and tensile strength (38 MPa versus 21 MPa) than LDPE. [6]

  3. Plastic bottle - Wikipedia

    en.wikipedia.org/wiki/Plastic_bottle

    A water bottle. Worldwide, 480 billions of plastic drinking bottles were sold in 2017 (and fewer than half were recycled). [1] A plastic bottle of antifreeze Large plastic bottles of water. A plastic bottle is a bottle constructed from high-density or low density plastic. Plastic bottles are typically used to store liquids such as water, soft ...

  4. Polyethylene - Wikipedia

    en.wikipedia.org/wiki/Polyethylene

    The high molecular weight makes it a very tough material, but results in less efficient packing of the chains into the crystal structure as evidenced by densities of less than high-density polyethylene (for example, 0.930–0.935 g/cm 3). UHMWPE can be made through any catalyst technology, although Ziegler catalysts are most common.

  5. Recycling codes - Wikipedia

    en.wikipedia.org/wiki/Recycling_codes

    High-density polyethylene: Plastic milk containers, plastic bags, bottle caps, trash cans, oil cans, plastic lumber, toolboxes, supplement containers [a] 3 PVC Polyvinyl chloride: Window frames, bottles for chemicals, flooring, plumbing pipes [a] 4 PELD or LDPE Low-density polyethylene

  6. Resin identification code - Wikipedia

    en.wikipedia.org/wiki/Resin_identification_code

    Low-density polyethylene, Linear low-density polyethylene: Plastic bags, six-pack rings, various containers, dispensing bottles, wash bottles, tubing, and various molded laboratory equipment LDPE is not often recycled through curbside programs and is a significant source of plastic pollution. LDPE can often be returned to many stores for ...

  7. Water bottle - Wikipedia

    en.wikipedia.org/wiki/Water_bottle

    Multi-use water bottles can be made from high-density polyethylene (HDPE), low-density polyethylene (LDPE), copolyester, or polypropylene. They all offer the advantage of being durable, lightweight, dishwasher-safe, and BPA-free. The main difference between each type of water bottle is the flexibility of the material.

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