Biodegradable plastic bags are primarily made from plant-based materials rather than traditional petroleum-based plastics.
Instead of using oil-based polymers, biodegradable plastic bags utilize renewable resources which can be broken down by microorganisms such as bacteria and fungi. This decomposition process returns the materials to their natural state more quickly compared to conventional plastics.
Here are some common materials used in the production of biodegradable plastic bags:
- Corn starch: This is a widely used material due to its abundance and ease of processing.
- Potato starch: Similar to corn starch, potato starch offers a readily available alternative.
- Wheat starch: Another starch-based option for creating biodegradable polymers.
- Cellulose: This organic compound, found in plant cell walls, can also be used.
The use of these materials allows biodegradable bags to decompose under specific conditions, such as composting environments. However, it's important to note that not all biodegradable plastics break down quickly or completely in all environments. The rate and extent of decomposition can depend on factors like temperature, humidity, and the presence of microorganisms.
