What is the plastic bag made of?
The main raw material of plastic bags is polyethylene and polyvinyl chloride, are not biodegradable. The main raw material for the production of plastic bags and polystyrene, polypropylene polymer, waste plastic packaging into the environment, because of its difficult degradation, caused by long-term, deep ecological and environmental problems. In the mixed waste plastic packaging effect of soil, crops absorb nutrients and moisture, will lead to crop failures; abandoned waste plastic packaging on land or in the water, animal as food ingestion, will lead to the death of the animal.
The main raw material of plastics is oil and natural gas, that is, carbon hydrogen compounds. First, the appropriate macromolecular components in petroleum and natural gas are extracted, first split into monomers, and then polymerized into polymers to become plastic
Method for identification of toxic plastic bags. The water detection method: put a plastic bag into the water, non-toxic can be surfaced, and poisonous won't rise; hand touch detection method: white or colorless transparent is non-toxic, the hand has a sense of lubrication, the surface like wax; color detection method: toxic haze or color yellow, red, black, feel sticky; jitter method: take a plastic bag shaking, crisp sound non-toxic; sound stuffy astringent toxic.
