For common commercial grades of high-density polyethylene the melting point is typically in the range 120 to 130 °C (248 to 266 °F). LLDPE has similar strength as HDPE but is much more flexible. It is used for the production of stretch films, shrink films and bags for heavy-weight goods and waste. However, LDPE has a significantly lower tensile strength, heat deflection temperature and melting point than HDPE.

Melting Point: 238° – 320° F Deflection Temperature: 66 PSI (Unannealed) 107 – 185 F; 264 PSI (Unannealed) 93.2 – 160 F: Service Temperature: 194°F – 230°F: Applications. The degree of crystallinity is usually in the range of 40% to 55% depending on branching and thermal history. Even though the densities of LDPE and LLDPE (0. Properties. The LLDPE melting point is 122. LLDPE (Linear-Low Density Polyethylene) is defined by a density range of 0.915 - 0.925 g/cm 3. is a substantially linear polymer, with significant numbers of short branches, commonly made by copolymerization of ethylene with short-chain alpha-olefins (e.g. LLDPE resin is commonly used in applications such as, plastic films, bags, stretch wrap, covers, lids, toys and cable insulation. Different test method that vicat softening point, so different values result. The melting point for average, commercial, low density polyethylene is typically 105 to 115 °C (221 to 239 °F). Advantages: high softening temperature (which allows to use it for hot products packaging), excellent performance characteristics at low and high temperatures, surface gloss and crack-resistance. Advantages: Stretchable

In 2018, LLDPE accounted for about 32% of the total polyethylene market. A useful attribute of thermoplastics is that they can be heated to their melting point, cooled, and reheated again without significant degradation.

Compared to LLDPE, it has smaller crystallites due to longer side and subside branching.

Faster cooling will result in imperfect crystals and hence lower melting point temperature shall be observed. LLDPE the relative density of 0.920-0.935; Its tensile strength of 16-33 MPa; The elongation of 800% to 1,000%; Shore hardness of 55 - 57; softening point 105-113 ° C; brittle temperature of less than -75 ° C; the melt flow rate at roughly 0.9 general film, packaging film for 2, 0.3 grade extrusion, rotational molding grade 4, injection molding grade eight such areas. Instead of burning, thermoplastics like polyethylene liquefy, which allows them to be easily Source: Wikipedia.org. 1-butene, 1-hexene, and 1-octene). Thermoplastic materials become liquid at their melting point (110-130 degrees Celsius in the case of LDPE and HDPE respectively). Linear low-density polyethylene (LLDPE) has a melting point of 122°C.

In 2009 the global LDPE market had a volume of circa 22.2 billion US-dollars (15.9 billion Euros).