Titanium dioxide is the main component of titania (TiO2) a white pigment, plastic required brightness, hue, tint reducing power, hiding power and dispersibility of titanium dioxide. Since the titanium dioxide has a very low pigment volume concentration in plastics, for example, the average content of titanium dioxide in polyvinyl chloride is 2%, and the average content in polystyrene/acrylonitrile-butadiene-styrene copolymer is 1 %, the average content in the polyolefin plastic is 0.5%.
Talking about the requirements of plastics for titanium dioxide
Talking about the requirements of plastics for titanium dioxide
Therefore, the rutile titanium dioxide of plastic is very fine, and it is dispersed in the plastic to produce a bottom hue which is very close to the anatase type. Moreover, since the number of particles per unit volume is increased, the reflection interface is increased, and the coloring power and hiding power displayed are also relatively high. Titanium dioxide for plastics cannot be used for coatings because of its small particle size and poor durability.
In most cases, titanium dioxide for plastics is made of silicon-aluminum film and organically treated rutile titanium dioxide, because plastics require titanium dioxide not only to provide a satisfactory appearance, but also to absorb large amounts of ultraviolet light, while anatase Does not have the function of absorbing ultraviolet rays.
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