全球膨胀聚丙烯(EPP)泡沫市场-增长,趋势和预测(2020-2025年)
Expanded polypropylene foam is an environmentally-friendly product, it can be recycled easily, and is 100% non-toxic. Recycling of polypropylene is emerging as an
important, and economically viable option on a large scale. The recycling process involves five steps, namely collection, sorting, cleaning, reprocessing by melting and producing new products from recycled PP. Thus, the first three
steps are the same as recycling most other commodities. However, the last two are critical. In the reprocessing phase, collected PP products are fed into an extruder, where
it is melted at 2,400 °C and cut into granules. These pellets are then ready for use in the production of new products. Efforts to improve polypropylene recycling have been ongoing which will aid the EPP foam market to expand during the forecast timeframe. Nextek Ltd, a UK-based plastic
design and recycling consulting company has invented an innovative process to decontaminate food grade polypropylene for reuse in a closed loop back into food
packaging. The Nextek developed process involves two steps: The first phase involves melting PP at nearly 250 °C to get rid of contaminant molecules. The second and last step includes removing residual molecules during under
vacuum and solidification at about 140 °C. The products made following this process can be blended with virgin PP at a rate up to 50%.