Polyethylene - PE)

Polyethylene is a family of thermoplastics obtained by polymerizing ethylene gas (C2H4). Through the catalyst and polymerization method of this material, various properties such as density, melt flow index (MFI), crystallization, branching and networking degree, molecular weight and molecular weight distribution can be controlled. Low molecular weight polymers are used as lubricants. Moderate-molecular-weight polymers are paraffin-mixable waxes, and ultimately polymers weighing more than 6,000 molecules account for the largest consumption in the plastics industry. Polyethylene contains a very simple structure, making it simpler than all commercial polymers. A polyethylene molecule is a long chain of carbon atoms that has two hydrogen atoms attached to each carbon atom.