Points for Attention in Application of Titanium Dioxide

Stability of Titanium Dioxide Product Quality

Product quality stability is very important for any enterprise. Because the quality stability of titanium dioxide is directly related to the quality stability of its downstream users. If some indicators of titanium dioxide are unstable, even if some indicators of titanium dioxide are greatly improved, this is also an unwanted product for downstream users, because if downstream users want their product quality to be stable, they must adjust the formulation accordingly according to the changes of quality indicators of titanium dioxide, otherwise the product quality will appear. Questions. Therefore, this issue is of great concern to users.

Choosing suitable titanium dioxide products

It is very important to select suitable titanium dioxide products for this application field. At present, there are thousands of types of titanium dioxide in the market, which are mainly divided into two categories: general type and special type. General-purpose products, as its name implies, are applicable in many fields, but there is a certain gap between them in a specific application field and the special-purpose products in a certain field. Titanium dioxide for plastic masterbatch must be changed from its unique hydrophilicity to hydrophobicity. Water-borne and oil-borne coatings and plastics can not be shared because of their different properties. Major quality problems will arise if special products used very well in the plastic industry are used in water-based applications. Therefore, for titanium dioxide producers, they should know which areas their products are suitable for and which areas they are not suitable for. They should avoid recommending your products to applications that are not suitable for our products. This will effectively avoid many quality objections. The downstream users of titanium dioxide should also have a certain understanding of the products recommended by titanium dioxide producers, by knowing whether the same industry is useful and how they are used; and before new products enter the factory, a small test must be carried out to determine whether the product is suitable, in order to reduce their unnecessary experience caused by improper selection of products. Economic loss.

Volatile Components

The volatile content of titanium dioxide is actually water content. Because there are high energy and hydroxyl groups on the surface of titanium dioxide, the surface of titanium dioxide always needs to absorb certain water to reduce its surface energy. The amount of water adsorbed is related to the surface organic treatment of titanium dioxide and the humidity and temperature of its storage environment. The volatile content of titanium dioxide can not determine the quality of the product, depending on its application system. Generally speaking, the volatile content of water-borne system has little effect on its application, but for oil-borne system and polyolefin system, the lower the volatile content, the better, because the high volatile content will affect its dispersion performance and product quality.

Dispersion factor

Dispersion, also known as grinding dispersibility or grinding wettability, is called water dispersibility when used in water medium and oil dispersibility when used in paint systems such as solvents. Dispersion index is an important application index of titanium dioxide. Dispersion not only affects the achromatic power, covering power and oil absorption of titanium dioxide pigments, but also affects the gloss and weatherability of film forming or profile forming. When grinding and dispersing in paint factories, the dispersion directly affects the time of grinding and dispersing. It is one of the important economic indicators in paint production. Moreover, too long grinding time will increase equipment pollution and make the whiteness of products worse. In the production of plastic color masterbatch or profile, the dispersion directly affects the cycle of replacing the nose screen and the performance of the final product.