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Polymateria Ltd is a British technology company developing biodegradable plastic alternatives. In 2020, the privately owned company was the first to achieve certified biodegradation of the most commonly-littered forms of plastic packaging in real-world conditions, in less than a year without creating microplastics.
Most bags that are manufactured from plastic are made from corn-based materials, like polylactic acid blends. Biodegradable plastic bags are nowadays as strong and reliable as traditional (mostly polyethylene)-bags. Many bags are also made from paper, organic materials like Manila hemp, or polycaprolactone. [2] [3] [4]
Additionally, an eco-cost to value ratio can be useful [6] The goals are to improve the long term viability and quality of life for humans and the longevity of natural ecosystems. Sustainable packaging must meet the functional and economic needs of the present without compromising the ability of future generations to meet their own needs. [7]
Canada's Zero Plastic Waste Agenda targets 50% recycled content by 2030. Global legislation is increasingly demanding higher recycled content in plastic packaging, posing significant challenges for manufacturers. Recycled PET (rPET) can cost 20-30% more than virgin PET, and global rPET supply can only partially meet current demand.
Composting bags with this films are used in selective collecting of organic waste. [36] Further, starch-based films can be used as a paper. [37] [38] Starch-based nanocomposites have been widely studied, showing improved mechanical properties, thermal stability, moisture resistance, and gas barrier properties. [39]
A plastic is considered biodegradable if it can degrade into water, carbon dioxide, and biomass in a given time frame (dependent on different standards). Thus, the terms are not synonymous. Not all bioplastics are biodegradable. [44] An example of a non-biodegradable bioplastic is bio-based PET. PET is a petrochemical plastic, derived from ...
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