Biobased plastics can be made by converting the sugars present in plants or other renewable agricultural inputs into plastic via fermentation, heat or chemical reaction. Essentially, renewable biomass is broken down into chemical building blocks, which are then converted into polymers that are used to make biobased plastics. Biobased plastics can be processed with most conventional plastic manufacturing techniques, including extrusion, injection molding, blow molding and compression molding. They can be blown into films, spun into fibers for textiles, or processed into a variety of other forms for many different applications.

The market for bioplastics, including biobased plastics, continues to grow. Consumers care about sustainability and want to support businesses producing and manufacturing sustainable products that contribute to the circular economy, improving the world for future generations. Research from PBPC supports this idea, demonstrating that massive consumer interest exists for more products made from biobased plastic.

Bioplastics are used in an increasing number of applications from packaging to rocket parts. Packaging is the most common application of bioplastics including flexible packaging, bags and containers for foods, beverages, personal care products, consumer goods, and industrial goods. A wide variety of consumer goods are made from bioplastics such as clothing and footwear, furniture, carpets, personal care items, toys, sport equipment, office supplies, and electronic components like circuit boards and phone casings. Agricultural and horticultural applications include biodegradable mulching films that can be tilled into the soil after use, produce packaging and storage, young tree and plant protectors, seedling and plant trays, floral wrap, and many more. The types of applications expand as industry innovators continue to develop and enhance functionality. Medical applications for biodegradable bioplastics are on the rise such as dissolvable sutures or screws used to help bones heal. The automotive and aerospace industries continue to find new uses for bioplastics as a way to reduce weight for lower fuel consumption and greenhouse gas emissions.

Absolutely! And then some. Many bioplastics have properties and functionality that are identical to traditional fossilfuel plastics. Some bioplastics have improved performance properties, such as increased heat resistance, enhanced moisture or gas barriers, and greater stiffness or flexibility. And biodegradable and compostable bioplastics offer unique, beneficial end-of-life opportunities.

Not all bioplastics are completely plant-based. Some bioplastics, such as PE, PP, PET or PVC, can be made from a combination of biobased and fossil-based inputs. Biobased and fossil-based biodegradable bioplastics may be used in combination to provide a specific functionality needed for an end product. The biobased content of a product can be determined through standard test methods such as ASTM D6866.

Bioplastics help reduce our reliance on fossil fuels and contribute to reduced waste and emissions through a wide range of disposal options, including recycling and composting, while some are biodegradable. Biobased plastics are made (entirely or partially) from renewable resources and reduce our carbon footprint. By 2030, if two-thirds of conventional plastics around the globe were replaced by bioplastics, the reduction of emissions would be equivalent to removing from the atmosphere the annual energy use of over 80 million homes.

Some bioplastics can be composted, some can be recycled, and some can biodegrade. The term “biodegradable” means a product will degrade in a particular ambient environment as a result of the action of naturally occurring microorganisms such as fungi, algae, and bacteria.

Some bioplastics are recyclable, but not all. Some bioplastics can be used as a drop-in alternative to conventional plastic to make products that can be reused or recycled with traditional plastic products in current recycling systems.

The amount of land used to grow bio-based plastic feedstock is miniscule compared to other uses: in 2020, 0.05% of global arable land, or 0.7 million hectares was used to grow feedstocks for bio-based plastics globally, and that’s only estimated to increase to 1.1 million hectares by 2025.