biopolypropylene

Biopolypropylene, commonly referred to as bio-based polypropylene (Bio-PP), is polypropylene produced from renewable feedstocks rather than fossil fuels. Like conventional polypropylene (polypropene), it is chemically identical, possessing the same polymer structure, processing behavior, and properties, which allows it to substitute fossil-based PP in the same applications.

Most bio-based PP is made by converting renewable feedstocks such as sugarcane-derived ethanol into propylene monomer, which is then polymerized into polypropylene. Because the polymer chains are the same, Bio-PP can be processed by the same equipment and methods used for standard PP, including injection molding, extrusion, and film formation.

Bio-based content is quantified under standards such as ASTM D6866, which measures the renewable carbon fraction in a material. Many producers also certify the supply chain through schemes like ISCC Plus or similar mass-balance approaches, enabling labeling as bio-based without requiring entirely new manufacturing facilities.

Key properties and applications generally mirror those of conventional PP: light weight, good chemical resistance, and versatile processability. Bio-PP is used in packaging, consumer goods, automotive parts, and other areas where PP is common.

Although bio-based PP reduces dependence on fossil resources and can lower lifecycle greenhouse gas emissions, it is not biodegradable in typical environments. End-of-life options follow standard PP recycling streams, and overall environmental impact depends on feedstock sourcing, cultivation practices, and recycling efficiency.