A few days ago, it became possible to enhance the separation and recycling of composite plastic packaging materials. This new method of recycling plastic composite packaging materials is mainly achieved through a new type of chemical solvent, which was jointly developed by eight scientific researchers from the Parana Institute of Technology in Brazil.
At present, more and more reinforced composite packaging laminated by plastic, paper, and aluminum foil is applied to food, beverage and pharmaceutical packaging. Although the reinforced composite packaging material has the characteristics of anti-corrosion and strong freshness, the structural characteristics of the packaging have caused its recycling to become a headache, and its number in landfills is increasing day by day. The researchers used a chemical solvent to recover the three components in the package. After immersing the fortified bag in this solvent for a period of time, the plastics, aluminum, and paper in the packaging material will delaminate. The three components are then separated by hand and the residual solvent is removed at high pressure. The three substances can be separated and recovered.
This solvent is quite effective for paper, pvc or pe plastics. This technology is suitable for the packaging of beverages such as milk and juice, as well as thinner packaging such as salt, vacuum coffee and eggs.
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