Degradable plastics can be divided into completely biodegradable plastics and destructive biodegradable plastics. Destructive biodegradable plastics mainly include starch modified polyethylene PE, polypropylene PP, polystyrene PS and so on.
Completely biodegradable plastics mainly take natural polymers (such as starch, cellulose, chitin) or agricultural and sideline products as raw materials, and through microbial fermentation or synthesis of biodegradable polymers, such as thermoplastic starch plastics, aliphatic polyester, polylactic acid, starch/polyvinyl alcohol, etc.
Biodegradable plastics based on natural substances such as starch mainly include the following products: polylactic acid, polyhydroxyalkanoate (PHA), starch plastics, bioengineering plastics and biological general plastics (polyolefin, polyvinyl chloride).
Extended data
The use of degradable plastics can bring convenience, such as ball nails for golf courses and seedling-fixing materials for afforestation in tropical rain forests.
Specifically applied to:
1, agriculture, forestry and fishery, plastic film, water-retaining material, seedling pot, seedbed, rope net, medicine and fertilizer slow-release material.
2, packaging industry, shopping bags, garbage bags, disposable lunch boxes, instant noodle bowls, cushioning packaging materials.
3. Sporting goods, golf course nails and tees.
4. Sanitary products, feminine hygiene products, medical mattresses and disposable pads.
5. Medical materials, bandages, clips, cotton swab sticks, gloves, drug slow-release materials, surgical sutures, fracture fixation materials.