Plastics recycling within the automotive industry

The use of plastics in automobiles has continued to grow within the last 20 years. The principal reason for this is they help to decrease automobile mass. A lighter car consumes less fuel, which results in less exhaust emissions also. In addition, plastic parts are not prone to corrosion, present resilience and flexibility for added security, have excellent thermal insulation, decrease noise and allow optimum space utilization. Today, the average vehicle includes 12-15% plastic parts. Assuming that the average car weighs 1300 kg, this quantities to 150-200 kg of plastic per automobile.

The figures above clearly show the large prospect of plastics recovery that lies in the automotive sector. The European countries Union's End-of-Life Vehicle Directive 2000/53/EC works as a significant driver for recycling in the motor vehicle industry, establishing adequate systems for the collection of ELVs and tightened environmental treatment criteria. It models targets for the recovery of vehicle elements and recycling, and encourages manufacturers to create twin screw extruder their vehicles using the recycling and reuse of parts at heart. Based on the directive, presently at the least 85% by an average pounds of an end-of-life vehicle should be reused or retrieved, including 5% energy recovery. As of January 2015, the pace of reuse and recovery should achieve a minimum of 95% with a minimum of 85 % recycling by an average excess weight per vehicle each year.

The plastic parts used in the automotive industry are mainly injection molded, such as for example dashboards, bumpers, fluid tanks, handles, buttons, casings, containers, clamps, and sockets. The recycling concern here is that frequently strengthened plastics, as well as two- or multi-component injection molded parts are utilized.

Plastic parts through the automotive industry have particular requirements for recycling that need to be considered in order to obtain a product that is fit for even more usage. The removal of odor and pollutants by high-vacuum removal and melt purification, in addition to launch of additives for up-cycling are the primary issues to be taken into account. Process flexibility for quick and effective material changeover and a wear-resistant machine style - for recycling reinforced plastic parts which contain cup fiber, for example - allow recyclers to process diverse input materials.

Volatile and solid impurities need to be extracted to be able to make high-quality regranulate ideal for reuse thoroughly. Unique vacuum degassing extruder modules allow reprocessing of contaminated and coloured parts. Based on the type of contaminants, different filter systems and sizes are used which also help decrease melt loss.

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