They exhibit mechanical properties similar to conventional plastics such as PP, and are generally resistant to oils and alcohols, however, they degrade when exposed to hot water.
Properties of these materials can be varied as the content of starch and other materials changes.
They are fully biodegradable and compostable, and they can replace traditional plastics in food service, food packaging, personal health care, etc.
Their basic content (40-80%) is corn starch, a renewable natural material. The rest is performance-enhancing additives and other biodegradable materials.
Category
Products
Golf tees
Trash bags
Processes
Blow moulding
Injection moulding
Extrusion
Thermoforming
References
Environmen- tal notes
Disposal: When disposed in biologically active environments such as composte facilities and wastewater treatments systems, they display degradation characteristics similar to leaves, wood chips and paper.
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