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Materials Ecosystem

Mechanical Recycling

Learn how the mechanical recycling of plastics is helping make polymers more sustainable within the materials ecosystem.

The role of mechanical recycling in the materials ecosystem

Mechanical recycling is the most commonly used process by which plastic waste is turned into new products without the structure of the material being significantly altered. It uses less energy than other forms of recycling, but it does have limitations. For example, highly regulated plastics such as those used in food packaging currently cannot be produced by mechanical recycling at scale due to quality, performance, and safety restrictions.

How it works

Plastics are separated

Plastics are broken down in size. Processes such as grinding, re-granulating and compounding are used.

Plastics are shredded

The plastics are then washed in a series of tanks to remove any remaining contaminants. Detergents and antifoam agents can improve the quality and consistency of post-consumer recycling (PCR) streams.

Reusing plastic

Plastic manufacturers can reuse these materials for plastic applications with less performance needs, such as trash bags, rigid plastic containers and building materials.

Circulus

Dow X Circulus

Dow acquired Circulus, a leading recycler of plastic waste into post-consumer resin (PCR). Dow's expertise in materials science and high-performance resins combined with Circulus' mechanical film recycling capability will allow Dow to enhance its offerings in applications, such as collation shrink packaging, stretch film, liners and select food packaging, to a wider range of applications in the industrial, consumer, and transportation markets.

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Accelerating the future of packaging

A key tool in closing the loop is mechanical recycling.

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