Introduction of GR Composite Titanium White Pigment

Select inorganic powder as basic raw material (inner nucleus). The inorganic powder has similar outlook structure, the grain-size distribution as well as reaction activity with titanium dioxide. Take TiO2 as coated material, applies a series of high-new techniques, such as modification compound preparation, coating film, powder uniforming and so on, through superfine, hydroxylation transformation of surface and mechanical power chemical action but becomes new compound white pigment. Comparing common titanium dioxide, this GR composite titanium white pigment has almost same or similar functions and properties but at lower price. The new type of composite titanium white pigment has approximate physical and chemical properties thus thus has the properties of titanium dioxide pigment. Used in the coating, may obtain same technical performance as the titanium oxide powder, also lower production cost in great scope. Its production and application of GR compound titaninum white pigment are the effective way to solves shortage of titanium dioxide resources, reduce the environmental pollution and raises utilization ratio of the titanium dioxide.


Its production technique and application effect have been identified by expects from the Committee of Bejing Science and Technology and approved as high-new Technique products to catch up with advanced international level. The product is evaluated as high-new technique product in Anhui province.

Characteristic Of Products:
1. Coated equipment and technique reach international advanced level.
2. Surface of composite titanium white pigment appear completely the same properties with crystal TiO2. Thus, it has similar or the same properties as common pure TiO2, such as oil absorption, whiteness, coverage power and others.
3. Comparing with common pure TiO2, our composite titanium white pigment has better particle size distribution, dispersion effect and adaptability
4. Reduce largely production cost than common pure TiO2.
5. There is no pollution during production procedure.

GR composite titanium white pigment product data
Table 1： Technical index （Standard Q/GR 003-2004）

Remark：1. Remainder rate on 325-mesh sieve is inspected by web sieve analysis.
2. Oil absorption is inspected according to ISO7875-1980

Key properties verification of GR composite titanium white pigment by experiments

1. GR composite titanium white pigment influence to contact ratio of coatings

Coverage capacity is one of key, direct indexes of coatings standing for its performance. Based on the same ingredient of coatings and conditions， the coverage power of the stronger coatings stand for the coverage power of the stronger pigments. Taking pure titanium dioxide and GR titanium white pigment as pigment, Styrene acrylic latex is fabricated respectively. Experiment description is as table 2 and inspection of contract ratio as table 3

Table2：Experiment description for testing contract ratio of GR composite titanium white pigment and common TiO2 in coatings

From the above table 4, you may find that suspending solution of the GR compound titanium white pigment and the rutile titanium oxide have basis consistent light transmissibility rate to various wave lengths monochromatic light. The light transmissibility rate is low to 400nm or smaller ultraviolet ray, along with the increase of incident light wave length, the light transmissibility of suspending liquid will increase in large scale, has reached above 40% at 700nm. Because the difference of transmissibility may be considered approximately the solid matter itself factor to causes. Therefore GR compound titanium white pigment and the rutile titanium oxide powder have the very strong absorption shielding effect to the ultraviolet ray.

Since the good absorption shielding effect to the ultraviolet ray, the rutile titanium oxide powder displays excellent chemical steability and good aging resistance, chalking resistance and resistance of color change Being similar optical characteristic, the GR compound titanium thus also have the same aging resistance and other optical performance.
By the above two experiments and analysis to key index in coating manufacture, we may conclude:
GR composite titanium white pigment may be widely used in ink, coating and paints. It can improve performance of coatings, lower substantially material cost in coating production.