How Many Types of Plastics Exist and Why?

Plastics are one of humanities most critical inventions, and one of its most dangerous and fierce threats to public and health and wildlife. Critical for transportation, medicine, and food safety its overuse has beared its very negative aspect. One that is specially harsh on Oceans, that now continuously move tons of waste plastics and with it millions of animals die because these things are outside their natural habitat and have not evolved to suvive them.

Plastics are classified according to its layers of plastic and special properties according to market demand.

  1. Polyethylene Terephthalate: Also called PET, it is the common plastic used for household activities. It is the common plastic to be recycled in most countries.
  2. High-Density Polyethylene ( HDPE) is a plastic known to not transmit any chemicals in the food it contains. It is recommended not to use any container of this type of plastic that originally did not contain food to store food.
  3. Polyvinyl Chloride: Also named PVC is the plastic used for tubes and pipes. It can be very harmful if ingested so it is preferable to avoid contact with food.
  4. Low-Density Polyethylene: Is a plastic sometimes recycled. Some of its characteristics are the durability and flexibility. Plastic grocery bags are made from this type of plastic.
  5. Polypropylene: PP is a strong and durable plastic resistant to high temperatures. Plastic bottle caps, lunch boxes and yogurt pots are made from this type of plastic.
  6. Polystyrene: A common but difficult to recycle plastics. Plastic cups and food boxes are made from this type of plastic.
  7. Code 7: Polycarbonate and polylactide are included in this category because of the difficulty in recycling them. Baby bottles, CD´s and medical containers are made of this Code 7 plastics.

Here is a video of plastics, plastic waste, water and plastic.

The great pacific garbage patch

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