Recycling of polyamide-based co polymers

Structural components of floor covering Material Fraction (wt%) [Pg.577]

Carrier and backing layer textile Polypropylene fibers KTll [Pg.577]

Gluing layer with filler Latex + CaC03 40-44 [Pg.577]

An essential method of PA6 and PA66 separation is based on selective dissolution [38,39]. An aliphatic carboxylic acid aqueous solution e.g., 85% solution of formic acid) is used as a selective solvent of PA6. Precipitation of PA6 takes place after the addition of water. Another method is based on the dissolution of both polyamides followed by a selective precipitation of PA6 or PA66. [Pg.578]

The three types of recycling methods of waste products and used carpet covering containing polyamide fibers are chemical or feedstock recycling, material (mechanical) recycling, and energy recovery. [Pg.578]

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