Biodegradable materials, also known as "green ecological materials", refer to materials that can be degraded under the action of soil microorganisms and enzymes. Specifically, it refers to a polymer material that can biodegrade under certain conditions under the action of natural microorganisms such as bacteria, molds, and algae.
Traditional plastics are mainly restricted in four key areas, namely non-degradable plastic bags, disposable plastic tableware, disposable products for hotels and fast plastic packaging. Based on this, the areas where degradable plastic products are substitutable are mainly plastic shopping bags in the fields of catering packaging and takeaway, supermarkets, and bazaars, as well as disposable plastic tableware and express plastic packaging. In addition, agricultural film is also a key replacement field for degradable plastics.
The ideal biodegradable material is a polymer material with excellent performance, which can be completely decomposed by environmental microorganisms after being discarded, and finally converted into CO2 and H2O to become an integral part of the carbon cycle in nature. The current fully degradable products are mainly made of PBAT+PLA (polyadipic acid/butylene terephthalate + polylactic acid), without PE material, they can be completely degraded! It means that all plastic packaging bags are degraded into water and carbon dioxide. The main source of this fully degradable material is processed from corn, cassava, etc. into lactic acid, which is PLA. Polylactic acid (PLA) is a new type of biological substrate and renewable biodegradable material. The starch raw material is saccharified to obtain glucose, and then fermented from glucose and certain strains to produce high-purity lactic acid, which is then synthesized by chemical synthesis methods. molecular weight polylactic acid. It has good biodegradability, and can be completely degraded by microorganisms in nature under specific conditions after use, eventually generating carbon dioxide and water, without polluting the environment, which is very beneficial to protect the environment and is an environmentally friendly material for workers.
Stone paper material is also environmentally friendly. It is mainly composed of calcium carbonate and contains a certain amount of PE. Compared with plastic, it is much more environmentally friendly. At the same time, it is more durable than PLA material. Currently PLA and stone paper are good alternatives to plastics on the market.
Recycling, petrochemical material innovation, inorganic material substitution, bio-based and biodegradable plastics that reduce pollution and carbon are used to support and complement each other. Let people enjoy the ecological safety, health and safety brought by ecological plastics, and enjoy the ecological well-being.
