Biodegradable Plastics – How They Work And Why They Matter

Biodegradable plastics are plastic materials which are designed to break down naturally by microorganisms (like bacteria, fungi or algae) into water, carbon dioxide, and biomass. These biodegradable plastics are made from natural sources (like plant-based materials) or by specially engineered polymers that are designed to degrade faster than normal plastics.

There are a few types of biodegradable plastics, including: 

Polylactic Acid (PLA) – this is one of the most popular types of biodegradable plastics. This is made from renewable sources such as plant starches, corn or sugarcane and can be broken down in industrial composting conditions (this occurs in a specialised facility that maintains high temperatures of 55-70 degrees Celsius).  

Polyhydroxyalkanoates (PHA) – these biodegradable plastics are produced from microorganisms through fermentation of organic materials that naturally break down in soil or water. 

Starch-based Plastics – this biodegradable plastic is made from a blend of starch and synthetic polymers that can degrade under composting conditions. 

Polyvinyl Alcohol (PVA) – this is a water-soluble synthetic polymer that is classified as a plastic and is usually derived from fossil fuels. 

Bio-based Polyurethanes – these are usually made from renewable sources, such as vegetable oils, carbohydrates, and some biomass and degrade through a combination of chemical and biological processes. 

Cellulose-based Plastic – these biodegradable plastics are made from cellulose; a natural polymer found in plants. They break down naturally over time, reducing waste in the environment. 

These are all great biodegradable options to more commonly used plastics like polyethylene and polypropylene, and they are becoming increasingly popular as the world becomes more environmentally friendly. 

Here at Rayda, we are conscious about the materials we use and ensure they are environmentally safe, recyclable, and sustainable. If you have any general plastic enquiries, please contact our team today, and we will be happy to help!

For more information on Biodegradable Plastics – How They Work And Why They Matter talk to Rayda Plastics Ltd