Bioplastics

Polymer

What are Bioplastics?

Bioplastics are plastics made from renewable agricultural feedstocks (biobased materials) and/or plastics that are biodegradable under appropriate composting conditions (compostable plastics). They offer performance and functionality comparable to conventional plastics and can be processed using standard plastic manufacturing technologies. In most cases, they can also be manufactured using existing production equipment with only minor process adjustments.

Biobased plastics are typically produced from renewable crops such as sugarcane, cassava, and corn. These raw materials undergo fermentation to convert plant-derived sugars or starches into monomers, which are then polymerized through the polymerization process to produce bioplastic resins for manufacturing a wide range of products.

Bioplastics provide an alternative material solution that combines the convenience and performance of conventional plastics with a more environmentally responsible approach to product development.

Biodegradation Process of Bioplastics

The production of plant-based bioplastics begins with renewable agricultural feedstocks such as cassava, legumes, sugarcane, and corn. These materials are fermented by microorganisms to convert starches into monomers. The monomers are then polymerized into bioplastic resins, which are subsequently processed into various products and packaging applications.

After use, compostable bioplastic products can be disposed of together with organic waste and will biodegrade under appropriate composting conditions.

PLA under the Ingeo™ Brand

PLA under the Ingeo™ brand is produced by NatureWorks LLC, a joint venture between PTT Global Chemical Public Company Limited (GC) and Cargill Incorporated (USA).

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NatureWorks is the world's leading producer of biopolymers, with an annual production capacity of 75,000 tonnes in Nakhon Sawan, Thailand, and 150,000 tonnes in Blair, Nebraska, USA.

Key Features of PLA

• Produced from 100% renewable plant-based resources (Renewable Resources)
• Excellent transparency and glossy appearance
• High rigidity with relatively brittle characteristics (similar to PET and PS)
• Suitable for fresh food packaging applications
• 100% biodegradable under appropriate composting conditions (EN 13432)
• Recyclable

Typical Applications of PLA

• Rigid packaging and single-use packaging
• 3D printing
• Fiber and nonwoven products, such as baby diapers and wet wipes
• Films and flexible packaging
• Bottles manufactured by Injection Stretch Blow Molding