Polylactic acid

Polylactic acid (CAS 26100-51-6), commonly known as PLA, is a bio-based, compostable thermoplastic derived from renewable feedstocks such as corn starch or sugarcane. It is used across packaging, biomedical, and consumer goods manufacturing.

This material serves as a sustainable alternative to conventional petroleum-based plastics. In packaging, PLA is processed into films, trays, cups, and rigid containers where end-of-life compostability is a requirement.

Medical device and pharmaceutical manufacturers use PLA to produce resorbable sutures, drug delivery matrices, and implantable scaffolds. These components degrade predictably in biological environments during use.

In 3D printing, PLA filament is one of the most commercially dominant materials for FDM and FFF processes. This is due to its processing ease and high dimensional stability during the cooling phase.

Food contact applications include disposable cutlery, cold-drink cups, and produce packaging. These applications are often necessary where biopolymer certification is required by retailers or brand owners.

PLA is supplied as pellets or granules, with filament and powder forms available for additive manufacturing. Grades are differentiated by molecular weight, D/L-lactide ratio, and melt flow index.

These variations allow the material to suit injection molding, extrusion, or fiber spinning. Food-contact compliant and medical-grade specifications are available for specialized industrial requirements.

The medical-grade specifications typically meet USP or ISO 13485-aligned quality standards. This ensures the material is suitable for sensitive healthcare and pharmaceutical applications worldwide.