Plastic is a word that originally meant “pliable and easily shaped.” It only recently became a name for a category of materials called polymers.
7 Different Types of Plastic · 1. Acrylic or Polymethyl Methacrylate (PMMA) · 2. Polycarbonate (PC) · 3. Polyethylene (PE) · 4. Polypropylene (PP) · 5.
Noun · Any of numerous substances that can be shaped and molded when subjected to heat or pressure. Plastics are easily shaped because they consist of long- ...
If we look at a case of ethylene monomer here; ethylene is a gaseous hydrocarbon. When it is subjected to heat, pressure and a certain catalyst, it joins ...