From a technical standpoint, the design of plastic fan blades must fully incorporate aerodynamic principles to ensure the efficient propulsion of air toward the target area during rotation. This necessitates the precise calculation and optimization of parameters-such as blade shape, angle, and count-to achieve peak performance in terms of airflow volume and pressure. Furthermore, the choice of material is critical; different plastics possess distinct physical and chemical properties-including strength, hardness, heat resistance, and chemical corrosion resistance-all of which directly influence the fan blades' service life and operational stability.