Advantages and disadvantages of polyethylene mattress
1. General performance: PE resin is odorless, nontoxic, white, powdery or granular, with a waxy appearance and a water absorption of less than 0. 0 1%。 PE is easy to burn, and its oxygen index is only 17.4.
2. Mechanical properties: PE has average mechanical properties, low tensile strength and poor creep resistance, but good impact resistance.
3. Thermal performance: PE has poor heat resistance, which changes with the increase of molecular weight and crystallinity. PE has good low-temperature resistance, the brittleness temperature can reach above -50℃, and it can reach-140℃ with the increase of molecular weight.
4. Electrical properties: PE is nonpolar, so its electrical properties are excellent. The dielectric loss is very low, and it can be used for high frequency insulation.