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Paper waste can be used as raw material for plastic products

Release time:

2017-03-07

Large amounts of "fly ash" and sludge are produced during the manufacture of paper and cardboard. Although some can be used as aggregates in concrete, most paper waste ends up in landfills. However, this may be about to change, as Finnish scientists have discovered that it can be used as a raw material for plastic products. As part of the EU Reffibre project, researchers at the Finnish National Technical Research Center have carried out laboratory tests showing that ash particles and sludge can replace 50% of polypropylene in injection molded or extruded plastic composites.

This method can not only prevent paper waste from being dumped into landfills, but also reduce the production cost of plastic products and reduce the amount of polypropylene required. In addition, by adjusting the ratio of ash particles/sludge to polypropylene, the strength, rigidity, heat resistance, appearance and surface texture of the plastic can be adjusted.

So far, the VTT team has created plastic floor tiles and storage containers that are made up of 30 percent paper-making waste. Researchers say paper waste is also expected to be used to make items such as crates and pallets.

All plastic sheet products for food are qualified

The use of PET plastic-PET sheet

All plastic sheet products for food are qualified

The use of PET plastic-PET sheet

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