Influence of phosphogypsum on the properties of wood-polymer composites

The influence of phosphogypsum on the technological, operational, and physical and mechanical properties of composites based on recycled high-density polyethylene filled with wood flour was studied. It was shown that when calcite is replaced by phosphogypsum in the composite, the operational, physical, mechanical, and technological properties of the material remain stable. Since phosphogypsum is a cheap by-product of the production of extraction phosphoric acid, its use as a filler in wood-polymer composites will reduce the cost of products made from them.