1. Titanium dioxide quality requirements for plastic, PVC and
Plastic is the second largest parts for titanium dioxide, occupying
about 20% of the total world titanium dioxide demands, There are
more than 50 brands belongs to plastic specials in the world 500
barands. Requirements for plastic, fine particle, good dispersion
performance;Good heat resistance and light resistance,During the
heat and the plastic forming process , the finished product does
not change color in sunlight exposure and use process. Most of the
particle size in plastic is fine. In the plastics, to join titanium
can improve the heat resistance of plastic products, light
fastness, weather resistance, make the plastic products to improve
the physical and chemical performance.The strong mechanical
strength can extend their life!
The effect of titanium pigment in the plastics industry mainly has
two aspects, one is used as the basic white pigment, provide cover
(white color); the second is to block uv light, used as uv screen
disadvantages agent, used for outdoor plastic products to provide a
good weatherability. For the Common plastic,it does not require the
weatherability, focuses More on the paint performance requirements.
Due to the characteristics of palstic products, When choosing
different, should be taken into account in accordance with the
technical requirements of plastic products, mainly to choose
anatase or rutile, not same as the coatings, inks, paints.
2. Titanium dioxide compared with other kinds of white pigment :
From this sheet, Liangjiang brand rutile titanium dioxide,
chlorination process and sulfuric acid process, both has highest
coefficient of refraction, highest covering power and tint reducing
power. Higher whiteness, higher gloss and better dispersibility.