![]() Moreover, this process provides the last chance to remove the non-plastic material from the batch to nullify the effect of impurities. The reduction in size also overcomes the problem related to the transportation and storage of material.Īfter the shredding of plastic, the shredded fragments are again sorted based on weight and moved along for further processes where they are reduced again to smaller sizes. This increase in surface area lowers the amount of energy required to heat, melt, flow through the extruder and ultimately to reshape the plastic in a new product. Another main advantage of reducing the size of the plastic material is to increase the surface area of the plastic. These impurities are not recyclable and cause processing hurdles, ultimately affecting the quality of recycled products by lowering strength, affecting aesthetics and altering shapes.Īfter washing the material, plastic is subjected to shredding through a granulating machine, in which the size of plastic is reduced and optimized according to the inlet of compounding extruder. Sometimes, foodstuff is also removed from the plastic to improve the processing. ![]() Mostly, the plastics or packaging related material has printed or labeled marks, with contamination of glues or adhesives, which must be removed. The main objective behind performing this step is to clean the plastic from all impurities or microbes from their surface. As all the material is washed before usage, the waste plastics are also washed through the disinfectors or sanitizers, especially in the case of food and health-related polymer recycled products. So, if the sorting is not done correctly, ultimately it will produce waste again, which must be reprocessed or recycled again.īefore the step of sizing or shredding, the sorted waste polymer is subjected to washing. ![]() Some recycling machines are not suitable or compatible with a specific type of waste plastic. This step is significant as different types of plastic require different conditions for processing, such as temperature and type of processing machine. Plastics are sorted according to the properties of polymers, including type, color, weight and shape. The main objective of this step is to ensure the removal of trash and other recyclables from plastic. Many communities or refuse suppliers offer single-stream recycling, where plastics, metals and papers are collected together, but separate from trash.Īfter collection, the plastic waste is conveyed to the processing area where machines are allocated for sorting the material according to the set parameters. Waste collectors must be sure that the polymer waste is disposed of separately from common waste. The first step of polymer recycling is the collection of waste polymer, which is to be processed for recycling. The general steps of polymer recycling are collection, sorting, washing, resizing, identification and compounding. ![]() The steps of recycling can be removed or added according to the needs or conditions. The process of recycling involves critical and discrete steps. The recycling of plastics has overcome the waste and energy management issues and also the usage of other energy resources. The waste or used polymers are repurposed in the form of recycled polymer products. Nowadays, the recycling of polymers is more advanced and quick. The most effective way to reduce the production of polymers is to recycle the polymeric materials, in which the polymers are reheated and reshaped after mixed plastic waste is sorted and cleaned. ![]()
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