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Non-Biodegradable Bioplastics

Plastics are generally comprised of carbon, hydrogen, oxygen, etc. If the source of carbon is completely/partly from petrochemicals, then the plastic is said to be non-biodegradable. There are 100% biobased plastics like PLA, PHA as well as partially biobased plastics.

While 100% bio-based plastics are mainly used to substitute the plastics that might end up as litter (usually shopping bags, food packaging, disposables), partially bio-based plastics such as polythene manufactured from sugar cane, can provide a near-perfect substitute for oil-based equivalents in products where durability and robustness is vital.

Example – Polyethylene terephthalate (PET, known for its use in beverage bottles). Coca Cola introduced Plant Bottle technology where the PET had been made from bio-based monoethylene glycol (from sugarcane) and terephthalic acid (from petrochemicals).

Biopolymer Feedstock Raw material Processing Applications
Bio-based Polyethylene terephthalate (PET) Sugarcane Sugar ·Fermented and distilled to ethanol

· Monoethylene glycol (MEG) from bio-ethanol

· MEG is combined with purified terephthalic acid (PTA)

PlantBottle by Coke, Bottles.
Bio-based Polyethylene (PE) Sugarcane Sugar · Fermented and distilled to ethanol

· Dehydrated to ethylene

· Polymerisation

Carry bags, films and bottles
Bio-polycarbonate Corn Isosorbide

· Hydrogenation of glucose to produce sorbitol

· Isosorbide is obtained from double dehydration of sorbitol

A substitute for high-performance glass components, electronic equipment, automotive housings, interior and exterior decor
Bio-Polyamide (PA 4,10/ PA 6,10) Castor Oil Sebacic acid The dicarboxylic acid (sebacic acid) part of polyamide is produced from renewable resource (castor oil) Electronics, Automotives, Sports