Bioplastics - It's a better choice - English 1
Biodegradable plastic Drop-in bioplastics Plastic
that is fully assimilated by microorganisms, where the carbon contained in the plastic is fully converted to carbon dioxide during the microbial process. Biodegradability is dependent upon the polymer chain’s structure, not the origin of the raw material. The degradation rate is dependent upon surrounding conditions, such as temperature and humidity. There is currently no single, overarching standard for biodegradability. One standard that is often referenced is EN 14995 Plastics – Evaluation of Compostability – Test scheme and specifications Cellulose The main component in cell walls in all higher order plants in varying amounts. This makes cellulose the most commonly occurring organic compound and the most common polysaccharide (multi-sugar). Cellulose is a polymer (monomeric glucose) with a very high molecular weight. Carbon footprint The net greenhouse gas emissions/uptake in a product system, expressed as carbon dioxide equivalents. Based on a life-cycle analysis. Composting Aerobic degradation of organic matter, i.e. degradation requiring the presence of oxygen to break matter down into energy (heat), carbon dioxide, water and biomass through the action of microorganisms. In order to be able to use the term compostable, certain conditions (home composting, industrial composting) and a timeframe must be specified. Several national and international standards are in place that provide a clearer definition. For the composting of bioplastics, this generally refers to industrial composting under the conditions defined in EN 13432. Degradation takes place at a steady temperature of about 60 degrees, with an optimal moisture content. DIN-CERTCO Independent certification organisation for the assessment/certification of bioplastics. Life-cycle analysis (LCA) A summary and evaluation of a product’s potential net environmental impact during its life cycle. Organic recycling The treatment of separately collected organic waste through anaerobic degradation and/or composting. Polycaprolactone A fossil-based biodegradable polyester used, e.g., for blending into renewable bioplastics to enhance properties. Starch A natural polymer (carbohydrate) from maize, potatoes, wheat, tapioca, etc. Starch is bonded by glucose in polymer chains. Thermoplastic starch (TPS) is a starch that has been modified into a plastic material. TÜV Austria Belgium Independent certification organisation for the assessment/certification of bioplastics. Formerly known as Vinçotte. Wood-plastic composite A composite of wood fibre/wood flour and plastic, usually polypropylene. IT'S A BETTER CHOICE – BIOPLASTICS 33 Chemically identical to fossil-based plastic, but made with renewable raw materials. One example is bio-PE, which is produced from bioethanol from, e.g., sugar cane or partially bio-based PET, where the monoethylene glycol comes from bioethanol. Other examples are partially biobased PA410 andPA610 as well as 100 per cent bio-based PA510 and PA 1010. Fermentation Biochemical reaction controlled by microorganisms or enzymes (e.g., the transformation of sugar into lactic acid).