Polypropylene, recycled plastic resins

High-density polyethylene is a polymer of the family of olefinic polymers (as polypropylene), or polyethylenes. Its formula is (-CH2-CH2-) n. It is a thermoplastic polymer made up of repeating ethylene units. It is designated such as HDPE (High Density Polyethylene) or HDPE (High Density Polyethylene) density). This material is used, among other things, to make plastic containers. disposable.

Features:

• Excellent thermal and chemical resistance.
• Very good impact resistance.
• It is solid, colorless, translucent, almost opaque.
• Very good processability, that is, it can be processed by conforming methods used for thermoplastics, such as injection and extrusion.
• It is flexible, even at low temperatures.
• It is stiffer than low-density polyethylene.
• It presents ease to print, paint or paste on it.
• Its very lightweight.
• Its density is around 0.940 - 0.970 g / cm3.
• It is not attacked by acids, it is considered a maximum working resistance of 60 ° C for liquids, because at higher temperatures the useful life is reduced. Other thermoplastics offer better resistance to higher temperatures.
• It is much better for mechanical and thermal recycling.