Polyolefins include linear low density polyethylene, low density polyethylene, high density polyethylene, polypropylene copolymer, polypropylene, and polymethyl pentene. High Density Polyethylene (HDPE) is the most widely used resin for plastic bottles. The difference comes at the final section of the machine – in this case, the melted plastic goes through a pre-designed opening and is then cooled down to solidify. Density is the first factor. HDPE (High Density Polyethylene): HDPE’s polymer chains include less branching. Branching takes place during polymerisation, where polymer chains have secondary polymer chains attached to them through replacing an atom in the primary chain with a monomer group. HDPE: HDPE is High density polyethylene. [1] S.T. HDPE is among the most commonly used plastic in the US. HDPE: 135°C (higher melting point compared to LDPE), LDPE: 115°C (Lower melting point compared to HDPE). LDPE: It is less strong and weaker than HDPE. Während es viele Arten von PE gibt, sind zwei häufigsten Polyethylen niedriger Dichte (LDPE) und hochdichtes Polyethylen (HDPE). Though HDPE and LDPE are two categories of Polyethylene, some differences can be observed between them based on their mechanical properties. HDPE: Shampoo bottles, food storage containers, laundry and house cleaning bottles, shipping containers, milk, water, and juice jugs, detergent bottles, grocery bags, recycling bins, water pipes, LDPE: Bags for dry cleaning and newspapers, shrink wrap, films, squeezable bottles (honey/mustard), bread bags, garbage bags. Filed Under: Chemistry Tagged With: Compare HDPE and LDPE, HDPE, HDPE characteristics, HDPE definition, HDPE stands for, HDPE uses, HDPE vs LDPE, High Density Polyethylene, High-density Polyethylene and Low-density Polyethylene Difference, LDPE, LDPE characteristics, LDPE definition, LDPE stands for, LDPE uses, low-density polyethylene. 15 Shares. Polyolefins are high molecular weight hydrocarbons. Players, stakeholders, and other participants in the global Polyethylene (HDPE, LDPE, LLDPE) market will be able to gain the upper hand as they use the report as a powerful resource. Properties of HDPE, LDPE and PET Bottles. HDPE can be more rigid as a … HDPE: HDPE is usually recycled, and resin identification code (also known as recycling symbol) is the number 2 (See figure 2). With a high tensile strength, HDPE is used in products like garbage containers, baby toys, water pipes, jugs and jars as well as packagings such as milk jugs, butter tubs, and detergent bottles. This material is economical, impact resistant, and provides a good moisture barrier. However, when looking into the differences between the two, the difference in density is somewhat minor. Manufacturing Linear Polyethylene-LLDPE. Low density polyethylene, abbreviated as LDPE. Here's a list of the pros and cons of each of LDPE and HDPE. Gusseted bags can accommodate bulky goods and increased quantities than flat bags. LDPE: LDPE has low crystalline and high amorphous regions (less than 50-60% crystalline). 2 . LDPE: LDPE is more transparent or less opaque than HDPE. The density is higher than that of LDPE. Ultra High Molecular Weight Polyethylene (UHMWPE), Polyethylene terephthalate Reinforced with 30% Glass Fibre (PET+GF30), Polyethylene terephthalate Reinforced with 15% Glass Fibers (PET+GF15), Polyethylene Polyethylene Terephthalate Blend (PE-PET) for Extrusion, Low Density Polyethylene (LD PE) for Film Applications, High Density Polyethylene (HD PE) for Injection Molding, High Density Polyethylene (HD PE) for Film Applications, High Density Polyethylene (HD PE) for Extrusion, Miscellaneous Domestic & Commercial Equipment. These materials can become brittle from oxidation and are damaged by exposure to UV light. Main Difference. Although LDPE and HDPE are both thermoplastic ethylene polymers, they differ in several properties and uses. The density is lower than that of HDPE. Experts forecast the global demand for propylene to re… HDPE has higher abrasion and tear resistance than LDPE, along with higher tensile and shear strength. Terms of Use and Privacy Policy: Legal. Polyethylene vs. Nylon. Branching takes place during polymerisation, where polymer chains have secondary polymer chains attached to them through replacing an atom in the primary chain with a monomer group. HDPE (high density polyethylene) is a durable, versatile, low-cost, abrasion- and chemical-resistant plastic material. HDPE and LDPE may have significantly different physical and functional characteristics. It is an excellent choice for fabricated water tanks and chemical tanks. Polyethylene (UHMW, HDPE, VHMW, HMW, LDPE) Polyethylene is a semi-crystalline material that is the largest thermoplastic polymer used today. The more branching nature results in molecules packing irregularly and intermolecular bonds are weaker than in highly linear polymers such as HDPE. 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