Tio2 rutile Titanium Dioxide Properties and uses in paintings and coatings CAS 13463 67 7

Tio2 rutile Titanium Dioxide Properties and uses in paintings and coatings CAS 13463 67 7

 

Specifications:

 

R618 is an silicon alumina/zirconia modified, neutral tone, rutile titanium dioxide pigment manufactured by the latest sulfate process technology. It can be used in a wide range of applications that require exceptional dispersion, high whiteness and moderate durability.

 

Key Features:

 

 Provides exceptional dispersion in both water and solvent based systems

 High brightness

 Clean tint tone  Moderate durability

 

Applications: R616 is recommended for evaluation in:

 

 General industrial coatings

 Can coatings

 Powder coatings

 Architectural coatings (interior and exterior)

 Inks – including gavure and flexographic

 Special purpose coatings

 Rubber and plastisols

 

Basic data:

 

Item	titanium dioxide(TiO2)
CAS NO.	13463-67-7
EINECS NO.	236-675-5
color indexing	77891, white pigments
ISO591-1:2000	R2
ASTM D476-84	III, IV
Appearance	white powder
true specific gravity	4.1 g/cm3
apparent density	0.7~1.0 g/cm3
surface treatment	Zirconium, aluminum, silicon coated inorganic+ special organic treatments

 

Typical technical index( Standard:Q/VAIP1-2010)

 

Index			R-618
inorganic surface treatment			ZrO2,,Sio2,AL2O3
organic surface treatment			yes
TiO2 content %			≥92
lightness %			≥94.5
Tint reducing power			≥1900
105℃ volatile matter %			≤0.5
water soluble matter %			≤0.5
PH value			6.5～8.5
oil absorption   (g/100g)			≤20
electrical resistivity  Ωm			≥80
residue on 45um sieve %			≤0.02
rutile content     %			≥98.0
Whiteness, (compared with standard sample)			No less than
Oil dispersible power (Hegemann nukber)			≥6.0
Index controlled by the company	Gardner of dry powder	∆L* (samples- standard samples)	≥100
		∆b	≤1.80

 

 

Applications:

 

1. Titanium dioxide anatase, titanium dioxide antase coated, titanium dioxide rutile sulfuric process, titanium dioxide rutile chlorination process:

 

	Anatase TiO2	Coated Anatase Tio2	Sulfuric acid process rutile Tio2	Chloride process rutile TiO2
powder	Indoor powder	Indoor powder	Indoor/outdoor powder	Indoor/outdoor powder
Usage amount	large	little	large	less
Dispersibility	bad	good	good	good
Covering power	bad	bad	good	better
Surface properties	bad	good	good	Good
liquidity	bad	good	good	good
Yellowing resistance	bad	bad	good	better
Color stability	bad	normal	good	better

 

Coatings industry consumes most qty of titanium dioxide, especially the rutile type. The global coating industries occupy 58% - 60%, mainly because the aspects of the performance is much better than the other white pigments. So the coating using by titanium dioxide is much higher than ordinary filler, because titanium dioxide is an integral part of in the coating, covering and adornment, its role is not only more important is to improve the physical and chemical properties of paint, bust also to improve the mechanical strength of the coating, adhesion, anticorrosive, light and weather resistance.So during of the production of coatings, It’s reasonable for us to choose the suitable type and specs!

 

2. haracteristic requirements for titanium dioxide in coatings and paints

 

Item	Building Coat
	Normal temperature drying enamel paint (Little porcelain paint type)	emulsion coatings
Outdoor	weather resistance, Hiding power, aesthetic property	weather resistance, Hiding power, aesthetic property( Little outdoor)
Indoor	Hiding power, aesthetic property	Hiding power, aesthetic property
item	Industrial Coat
	automobile	home electrical appliances
Finish coat	weather resistance, Hiding power, aesthetic property , dispersibility	Hiding power, aesthetic property
floating coat	weather resistance, Hiding power, dispersibility
primer coat	dispersibility

Coatings industry consumes most qty of titanium dioxide, especially the rutile type. The global coating industries occupy 58% - 60%, mainly because the aspects of the performance is much better than the other white pigments. So the coating using by titanium dioxide is much higher than ordinary filler, because titanium dioxide is an integral part of in the coating, covering and adornment, its role is not only more important is to improve the physical and chemical properties of paint, bust also to improve the mechanical strength of the coating, adhesion, anticorrosive, light and weather resistance.So during of the production of coatings, It’s reasonable for us to choose the suitable type and specs!

 

3. Titanium dioxide quality requirements for plastic, PVC and masterbatch

 

Item	Performance
Hiding power	Lighter and thinner plastic products can be produced using tio2 of good hidinding power
Whiteness	Decide the appearance of the white or light color palstic products light color or white color
Dispersibility	Affect the production cost of plastic products as bad dispersibility affects the  smoothness and brightness
Weather resistance	The outdoors plastic products and plastic doors and windows require the weather resistance of tio2
Machinability	Titanium dioxide machinability is the vital key to the production efficiency and cost in the production of white masterbatch (especially the concentration variety)
Performace impact	Titanium dioxide volume of addition can affects the quality of the plastic products, especially in the condition of larger addition

 

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 dioxide

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.

 

4. 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.

 

Pigment name	Relative density	Reflactive index	tinting reducing power		Hiding power
			Reynolds number	Relative value
Chlorination rutile TiO2	4.0	2.85	1800	105	105
Sulfuric acid process TiO2	4.2	2.76	1650	100	100
Anatase TiO2	3.91	2.55	1270	77	78
Barium sulfate	4.5	1.64
Zinc oxide	5.6	2.02	200	12	14
Lithopone	4.2	1.84	260	16
Basic lead carbonate	6.1	2	150	9	12
Zinc sulfate	4	2.37	660	40	39

 

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