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What are the indicators of titanium dioxide in white masterbatch?
Apr 24, 2018

It is well-known that white masterbatch has become more and more widely used in plastic products, and the quality requirements have become higher and higher. The factors that really affect the quality of white masterbatch are, in addition to the excellent resin, titanium dioxide plays a crucial role in it.

Titanium dioxide has its own specific performance indicators for plastics and fibers. Titanium dioxide is an important white pigment for plastics. It allows plastics to efficiently scatter visible light to impart whiteness, brightness and opacity. At the same time, it is also necessary to consider its processability. For this purpose, there should be certain requirements for the above properties.

(1) Whiteness Because the plastic itself has a color and transparency, its own whiteness is significantly different. Therefore, when comparing the whiteness of various titanium dioxides, it should be used for the same plastics.

(2) Opacity Titanium dioxide strongly scatters or refracts light. If there is enough titanium dioxide in the plastic product, all the light that strikes the surface is reflected. This product is opaque and white.

(3) Dispersibility Dispersibility refers to the dispersion of a pigment in a coloring medium. Titanium dioxide particles exist in three states: primary particles, agglomerates, and agglomerates. The dispersion of titanium dioxide in plastics is a process in which agglomerates are broken up into primary particles of the agglomerates and new particles are then stabilized.

(4) Processability The addition of titanium dioxide to plastics will affect the rheological properties of plastics. The higher the content, the more significant this effect will be. In the production of white masterbatch (especially high-concentration varieties), the pros and cons of titanium dioxide processing become a key factor in determining the production efficiency and cost.


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  • Contact Us

    Add:No.127, Yanzaohang Village, Xuyuanzi Township, Qingyun County, Dezhou city, Shandong Province

    Fax:+86-531-88257710

    Mob:+8618053491991

    Email:twinklesheng@gmail.com

    Web:www.masterbatch-ls.com

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