By David K Platt
Biodegradable polymers have skilled powerful progress during the last 3 years and are set to make additional inroads into markets commonly ruled by means of traditional thermoplastics in destiny. call for is being pushed via a few components. the price of biodegradable polymers has come down significantly during the last 3 years whereas even as usual thermoplastic costs have elevated significantly. Now, a few sessions of biodegradable polymers are expense aggressive with polymers comparable to puppy. The biodegradable polymers itself has demonstrated an agreed framework for checking out and certification and there's turning out to be political strain in built international locations to lessen packaging waste and strengthen a composting infrastructure. Biodegradable polymer manufacturers have additionally invested in product and method advancements. ultimately, shoppers and model vendors are commencing to understand the advantages of sustainable or 'green' packaging. 4 major sessions of biodegradable polymers are analysed during this record, polylactic acid (PLA), starch-based polymers, artificial biodegradable polymers, resembling fragrant aliphatic co-polyesters, and polyhydroxyalkanoates (PHA). The document analyses their key functionality houses, purposes improvement, marketplace drivers and destiny clients. every one product part additionally includes an estimate of industry dimension by means of international zone and finish use industry, plus forecasts to 2010. there's additionally an research of key providers and their items. Key gains: Biodegradable polymers industry dimension through geographic quarter, polymer variety and finish use region, 2000 and 2005, plus forecasts to 2010. marketplace chance research via finish use area, similar to packaging, baggage and sacks, foodservice, agriculture, clinical, shopper items and fibres. Illustrations of product and purposes improvement during the last 3 years. provide chain research: together with info of thirty top biodegradable polymer providers and profiles of round fifty of the world's prime biodegradable polymer processors. research of biodegradable polymer functionality houses, industry drivers, functions and product advancements.
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Additional resources for Biodegradable Polymers: Market Report
31 Biodegradable Polymers Plastic recycling is a requirement of European Union countries. The European Commission Directive 94/62/EC on Packaging and Packaging Waste aims to prevent or minimise the impact of packaging waste on the environment through recovery and recycling targets. 5%. The mechanical recycling quota for all the different material groups taken together is to be set at a minimum of 55% and a maximum of 80%. All participants in the supply chain, from polymer producers to retailers, have a financial obligation under the directive for meeting the recycling targets.
2 Polyglycolide (PGA) Polyglycolide is the simplest linear aliphatic polyester. PGA was used to develop the first totally synthetic absorbable suture, marketed as Dexon in the 1960s by Davis and Geck, Inc. Glycolide monomer is synthesised from the dimerisation of glycolic acid. Ring-opening polymerisation yields high molecular-weight materials, with approximately 1-3% residual monomer present. PGA is highly crystalline (45-55%), with a high melting point (220-225 °C) and a glass transition temperature of 35-40 °C.
PLA compares well with petrochemical-based plastics used for packaging. It is clear and naturally glossy like polystyrene, it is resistant to moisture and grease, it has flavour and odour barrier characteristics similar to polyethylene terephthalate (PET). The tensile strength and modulus of elasticity of PLA is also comparable to PET. PLA can be formulated to be either rigid or flexible and can be co-polymerised with other materials. Polylactic acid can be made with different mechanical properties suitable for specific manufacturing processes, such as injection moulding, sheet extrusion, blow moulding, thermoforming, film forming and fibre spinning using most conventional techniques and equipment.