The prospect of biodegradable data is very good. With the rising price of energy and the increasingly prominent environmental problems, the pace of replacing traditional petroleum products with biodegradable and biodegradable data is gradually accelerating. It is expected that the government will also promulgate relevant preferential policies, laws and regulations to encourage market application and the prospect of large-scale application of biodegradable data. View. Biodegradable materials include macromolecule materials directly prepared by biotechnology, such as polyhydroxyalkanoate (PHA), polylactic acid (PLA), polybutylene succinate (PBS), polyamino acid, etc., and starch-based biodegradable plastics, carbon dioxide copolymer aliphatic polycarbonate (APC). And so on.
Starch biodegradable material is a kind of plastic product which is prepared by blending starch with other polymers after modification and grafting reaction. It can replace general plastics in industry, and can be used as packaging materials, earthquake-proof materials, plastic film, food containers, toys and so on.
PLA is a kind of macromolecule material synthesized from lactic acid. It has the characteristics of non-toxicity, non-irritation, high strength, easy processing and good biocompatibility. The products can be completely degraded after use. Therefore, PLA is a kind of bio-environmental protection material that can truly achieve the dual effects of ecology and economy. It is the most active and fastest-growing biodegradable plastic in recent years. Polybutylene succinate is obtained by condensation of succinic acid and butylene glycol. It is recognized as the best biodegradable plastics in the world. Because of its excellent inductive performance, reasonable cost performance and wide application, PBS can be used in packaging, tableware, cosmetics bottles and drug bottles, disposable medical supplies, agricultural films, slow-release materials of pesticides and fertilizers, biomedical polymer materials and other fields.
Polyhydroxyalkanoate is a kind of natural macromolecule polyester. It is a kind of intracellular polyester synthesized by many bacteria under specific conditions. More than 90 genera of bacteria have been found to synthesize PHA with more than 150 different structures. At present, the commercialized PHA products mainly include Polyhydroxybutyric acid (PHB), copolymer of hydroxybutyric acid and hydroxy valeric acid (PHBV) and copolymer of hydroxybutyric acid and hydroxy hexanoic acid (PHBHx).
Biodegradable materials are widely used and can be completely biodegradable plastic materials and products, including starch-based full biodegradable shopping bags, roll-up bags, flat bags, high-performance biodegradable fresh-keeping bags, high starch content biodegradable municipal garbage sorting bags, biodegradable express bags, water-soluble washing packaging bags, agricultural film, industrial packaging bags, electronic products. Such products as packaging bags, disposable snack utensils, beverage bottles and cups. These products are derived from natural plants such as maize and cassava. The biological content of these products is more than 50%. They can be completely degraded within 90 days at the fastest.