PLASTICS? ?LAB? ?REPORT Objective:?? ?To? ?investigate? ?properties? ?of? ?plastics? ?using? ?acetone, ? ?water,? ?oil,? ?alcohol,? ?and? ?the? ?copper wire ? ?flame? ?test. Research: Plastic ? ?#1-?Polyethylene? ?terephthalate? ?(PET? ?or? ?PETE? ?or? ?polyester)?? ??goes? ?toward? ?textile manufacturing.? ?It ? ?is? ?a ? ?popular? ?plastic? ?for? ?food? ?and? ?drink? ?packaging? ?purposes? ?because? ?of? ?its? ?strong ability? ?to? ?create? ?a? ?liquid? ?and? ?gas? ?barrier? ?to? ?prevent? ?oxygen? ?from ? ?getting? ?in? ?and? ?spoiling? ?the product.. ? ?Some? ?properties? ?include?:light? ?weight, ? ?clear, ? ?strong, ? ?tough,? ?effective? ?barrier? ?for? ?liquid and? ?gas.? ?The? ?structural ? ?formula? ?for? ?PET? ?is? ?(C? 10? H? 8? O? 4? )? n.