Biodegradable bags are becoming more and more commonly used because they are better for the environment and most people are concerned about becoming more "green". When you try to understand a little more about your choice where biodegradable bags are concerned, you should be aware of the various types of these decomposable bags
The material commonly used in biodegradable bags include:
• starch-based polymer (at least 90% of wheat, potato or corn;
• polyester produced from hydrocarbons;
• oxo-biodegradable polymers;
• photodegradable polymers (break with UV light);
• water-soluble polymer – soluble in water at a certain temperature.
Biobased or Starch-Based:
types of bags are manufactured from a variety of starch, such as wheat, potato or corn. This bag will break down or biodegrade in 180 days or less, depending on environmental conditions. No fossil fuels are used in the production of these bags, and they degrade quickly. The strength of these bags is not very good if they are filled with heavy material and they have a limited shelf life. types of bags need to compost in special composting facility, so they tend to not be a good option to dispose of your household waste.
Oxodegradable and photodegradable
This plastic is produced by mixing an additive that provides the catalyst UV / oxidative disposal. This plastic can last from several months to several years to break down in landfills. biodegradation takes place in two steps, the first plastic modified by reacting to oxygen, and the second by breaking down into fragments of molecules are biodegraded into carbon dioxide, water, and other compounds by microorganisms.