recycling plastics

LDPE is an abbreviation of the plastic Low-Density Polyethylene. IT is considered a thermoplastic manufactured from the monomer ethylene. It is known for being a transparent kind of plastic, as well as being tough and flexible.

#define MAX_LINE 255 /* longest allowed line in dictionary */
#define HDPE 2 /*High Density*/
#define LDPE 4 /*Low Density*/

PET or Polyethylene Terephthalate – most commonly found in soda, water and juice bottles
HDPE or High-Density Polyethylene – milk jugs, household carpet cleaner and detergent containers – and also some plastic bags

PVC or Polyvinyl Chloride – plumbing pipes, windows, and in some cases, cooking oil and shampoo bottles
LDPE or Low-Density Polyethylene – frozen food containers, condiment bottles and shopping – even produce bags
PP or Polypropylene – Tupperware boxes, medicine bottles and ketchup bottles