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Grade Selection for Plastics
Selecting a suitable titanium dioxide grade for an application will depend on resin type and processing conditions, as well as finished product performance requirements. Plastics Grades TiO2 Physical Properties:
|
Property |
Grade |
|
R-100/R-101 |
R-102 |
R-103 |
R-104 |
R-105 |
R-350 |
R-960 |
|
TiO 2, wt%, min. |
97 |
96 |
96 |
97 |
92 |
95 |
89 |
|
Alumina, wt%, max. |
1.7 |
3.2 |
3.2 |
1.7 |
3.2 |
1.7 |
3.5 |
|
Silica, wt%, max. |
N/A |
N/A |
N/A |
N/A |
3.5 |
3.0 |
6.5 |
|
Organic Treatment |
hydrophilic |
hydrophilic |
hydrophilic |
hydrophobic |
hydrophobic |
hydrophobic |
N/A |
|
Color CIE L*, min. |
97.9 |
98.5 |
97.8 |
97.5 |
98.5 |
98.5 |
98.5 |
|
Specific Gravity |
4.2 |
4.1 |
4.1 |
4.2 |
4.0 |
4.1 |
3.9 |
|
Vinyl Tint Strength |
102/110 |
109 |
110 |
110 |
105 |
110 |
90 |
|
Vinyl Undertone |
-.040/0.005 |
0.035 |
0.035 |
0.030 |
-0.010 |
0.030 |
-0.030 |
|
pH |
8.0/8.5 |
7.5 |
6.5 |
N/A |
N/A |
N/A |
7.4 |
|
Resistance, min. |
2.0 |
2.0 |
4.0 |
N/A |
N/A |
N/A |
4.0 |
Notes: Unless noted, values are typical. Resistance is reported as the minimum value in k ohm-cm. Test methods used to determine the values reported are available from your TiO2 sales or technical service representative.
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