Common problems with titanium dioxide used in plastics

What does titanium dioxide powder in plastic do?

The application of titanium dioxide in plastic products not only utilizes its high hiding power, high fading power, and other pigment properties, but also improves the heat resistance, light resistance, and weather resistance of plastic products, preventing them from being attacked by UV light, and improving the mechanical and electrical properties of plastic products. Due to the fact that plastic products have a much thicker film than paints and inks, they do not require a high concentration of pigment volume, coupled with their high covering power and strong coloring power. Almost all thermosetting and plastic plastics use titanium dioxide, such as polyolefins (mainly low-density polyethylene), polystyrene, ABS, PVC, etc. It can be mixed with resin dry powder, or with liquid containing plasticizer, and some titanium dioxide is processed into color masterbatch before use.

What are the applications of titanium dioxide in plastic products?

The use of cable materials results in low residual volume resistance (VR%). With the continuous expansion of the application scope of plastic products, many users of external plastic products, such as plastic doors and windows, building materials and other outdoor plastic products, also have high requirements for weather resistance. In addition to the need to use Rutile type titanium dioxide powder, they also need to stop surface treatment. This kind of surface treatment usually does not add zinc, only aluminum, silicon, zirconium, etc. Silicon has a hydrophilic and dehumidifying effect. It can avoid the formation of pores in plastic during high-temperature extrusion due to moisture evaporation.

What are the quality requirements for titanium dioxide powder in plastic products?

Covering power: Titanium dioxide with good covering power produces lighter and thinner plastic products;

Whiteness: determines the appearance of light or white plastic products;

Dispersibility: It affects the production cost of plastic products. Poor dispersion of titanium dioxide in plastic products can affect the smoothness and brightness of the products;

Weather resistance: Plastic products and plastic doors and windows used outdoors must ensure the weather resistance of titanium dioxide.

What effect does plastic specific titanium dioxide powder have?

The application of titanium dioxide in plastic products not only utilizes its high hiding power, high fading power, and other pigment properties, but also improves the heat resistance, light resistance, and weather resistance of plastic products, preventing them from being attacked by UV light, and improving the mechanical and electrical properties of plastic products.