Danquinsa: Wood-plastic compounds made from recycled PP with 35 to 45 percent wood content

Danquinsa GmbH offers wood-plastic compounds under the product name “Gmtx Xi RPP F”, based on post-industrial recycled polypropylene (PIR-PP) and residual materials from the wood-processing industry. Depending on the grade, the wood content is 35, 40 or 45 percent by weight.

The wood-plastic compounds, supplied in pellet form, can be processed on conventional injection molding and extrusion equipment. The company also lists 3D printing, thermoforming and blow molding as suitable processing methods. Potential applications include the production of plastic components that are typically made from materials such as polypropylene (PP) or acrylonitrile butadiene styrene (ABS).

According to the published product specifications, all three grades have a density of 1.00 g/cm³. Shore D hardness is 65 for the grade containing 35 percent wood and 66 for the grades containing 40 and 45 percent wood. The melt flow indices are 8, 6 and 5 g/10 min, respectively, measured at 190°C under a load of 5 kg.

Without additional coloring, the wood-plastic compounds produce components and surfaces with a wood-like appearance. Color masterbatches can be used to achieve other shades. By combining PIR polypropylene with wood residues, the wood-plastic compounds bring together two industrial secondary raw material streams in a thermoplastically processable material.