What is fully degradable material plastic

Completely degradable plastics are mainly made of natural polymer materials (such as starch, cellulose, chitin) or agricultural and sideline products by microbial alcoholing or synthetic biodegradable polymers, such as thermoplastic starch plastics, aliphatic polyester, polylactic acid, starch, polyvinyl alcohol, etc.

Under compost conditions, plastics can be degraded and dissolved due to biological reaction processes, and then completely degraded into carbon dioxide, water and other new biomass. The heavy metal content, toxicity test and residual small debris of compost must meet the requirements of relevant international and national standards.

The European Union Standard EN13432 and the American Standard have been widely adopted as the international standards and certification standards for the biodegradability of plastics. According to EU standard EN13432, materials and products that are fully biodegradable are required to meet the following four requirements:

1. When the material or product passes the three-month composting test, 90% of the plastic must be dissolved into small particles of less than 2mm.

2. Within 180 days (the mixture is 90 days), 90% of the material or product must be degraded and converted to carbon dioxide water.

3, the material or product must meet the strict limit of heavy metal content stipulated by the state.

4, the quality of toxicological test results must be reliable to the environment.

Disposable environmental protection plastic film products are widely used in medical health film, agricultural mulching film, shopping bags, vest bags, plastic bags, garbage bags, rolling bags, disposable gloves and other anti-static film products, such as electronic products packaging bags. Under the promotion of environmental protection policy, the PLA, PBAT, PHA, PCL, PBS and other biodegradable plastics, starch and related additives and equipment are being applied in disposable tableware, packaging, agriculture, automotive, textile and other fields, ushering in new market development opportunities.