Sliding Stone Powder Usage Methods: (1) Direct Powder Addition: Mix sliding stone powder directly with plastic materials, then extrude and granulate through a twin-screw extruder to form modified plastic materials. This is a commonly used and cost-effective method in plastic modification. (2) Carrier-Free Masterbatch Method: Process sliding stone powder into a loose, carrier-free granule via special technology, then blend it with plastic materials and granulate through a twin-screw extruder to create modified plastic materials. This method offers two advantages: reducing dust pollution during production for a better working environment, and improving the uniformity of the blending process, thereby enhancing product quality. (3) Filler Masterbatch Method: Mix sliding stone powder with a plastic carrier, granulate into high-content masterbatch through an extruder, which can then be directly mixed with plastic materials for final product processing. This method is convenient to use but has poor dispersibility, making it unsuitable for products with high quality requirements.