Low-density polyethylene (LDPE) is a thermoplastic made from petroleum. It was the first grade
of polyethylene, produced in 1933 by Imperial Chemical Industries (ICI) using a high-pressure
process via free radical polymerization.
High-Density Poly Ethylene (HDPE) is a thermoplastic polymer made from petroleum. As one of the most versatile plastic materials around, HDPE plastic has been using in a wide variety of applications, including plastic bottles, milk jugs, shampoo bottles, bleach bottles, cutting boards, and piping. HDPE is known for its outstanding tensile strength and large strength-to-density […]
Urea, also known as carbamide, is an organic compound. The chemical formula is CO (NH2) 2.
It is a colorless, odorless solid, highly soluble in water, and practically non-toxic. Dissolved in
water, it is neither acidic nor alkaline
