Plastic Balls Wholesaler introduces two common types of plastic balls:
1. PP (polypropylene) plastic ball
PP (polypropylene) plastic balls are widely used in cosmetics balls, environmental protection equipment and other products.
Properties: Polypropylene plastic is a general-purpose plastic with low density, a milky white highly crystalline polymer, non-toxic and odorless.
Features: Good mechanical properties, good rigidity, wear resistance, relatively high hardness; good heat resistance, poor cold resistance; no water absorption, good chemical stability, but not resistant to sunlight, poor thermal stability; flammable, when burning It smells of petroleum; good electrical insulation, withstand voltage; transparent film, poor permeability to air and water vapor; good for forming films, silk and other products, but poor dyeing, printing, and adhesion.
2.POM plastic ball
POM plastic balls are widely used in cosmetics, sprayers, guide rails, hardware machinery and other products.
Properties: The surface is smooth, shiny, hard and dense material, light yellow or white.
Features: Wear resistance and self-lubricating properties are also superior to most engineering plastics, and have good oil resistance and peroxide resistance. Not resistant to acids, strong alkalis and ultraviolet radiation.