What are the substantial differences between plastic bags with biodegradable materials and ordinary plastic bags?
Biodegradable plastic refers to a type of plastic that is degraded by the action of microorganisms in nature, such as bacteria, molds (fungi) and algae. The ideal biodegradable plastic is a kind of polymer material with excellent performance, can be completely decomposed by environmental microorganisms after being discarded, and finally inorganicized to become a component of the carbon cycle in nature. "Paper" is a typical biodegradable material, while "synthetic plastic" is a typical polymer material. Therefore, biodegradable plastics are polymer materials with both "paper" and "synthetic plastic" properties.
Biodegradable plastic, also known as biodegradable plastic, refers to the action of microorganisms existing in nature under natural conditions such as soil and/or sand, and/or specific conditions such as composting conditions, anaerobic digestion conditions, or aqueous culture fluids. It causes degradation, and finally completely degrades into carbon dioxide (CO2) or/and methane (CH4), water (H2O) and mineralized inorganic salts of the elements contained therein, as well as new biomass plastics.
Plastics are polymer compounds (macromolecules) made from monomers as raw materials through addition polymerization or polycondensation reactions. They have moderate deformation resistance and are between fiber and rubber. They are composed of synthetic resins, fillers, plasticizers, and stabilizers. It is composed of additives such as agents, lubricants, and pigments.
The main component of plastic is resin. Resin refers to a polymer compound that has not been mixed with various additives. The term resin was originally named for the lipids secreted by plants and animals, such as rosin and shellac. The resin accounts for about 40% to 100% of the total weight of the plastic. The basic properties of plastics are mainly determined by the nature of the resin, but additives also play an important role. Some plastics are basically composed of synthetic resins, with no or little additives, such as plexiglass, polystyrene, etc.
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