Titanium Dioxide DR-2688
DR-2688 is a rutile titanium dioxide pigment specifically developed for polycarbonate and other engineering plastics. Its alumina-based inorganic treatment and organosilicon surface treatment are designed to improve compatibility with polymer systems and help limit viscosity increase, loss of lightness, yellowing and embrittlement during high-temperature processing.
With high lightness, a bluish undertone, strong tinting performance and good melt-flow behavior, DR-2688 supports the retention of optical appearance and mechanical properties in PC, PC alloys, ABS, PET, PA and related engineering-plastic applications.
Applications
DR-2688 is recommended for polycarbonate and engineering-plastic systems, including:
• Polycarbonate and PC alloys
• ABS, PET and PA engineering plastics
• Engineering-plastic components requiring high lightness and low yellowing
• Compounds requiring stable melt flow and mechanical-property retention
• Selected high-performance polyolefin masterbatch applications
Key Features
- Designed for polycarbonate and PC alloys
- Excellent resistance to PC degradation and yellowing
- High lightness and a bluish undertone
- High tinting strength
Good melt-flow behavior and processability - Supports retention of mechanical properties
- Low oil absorption and good dispersion
- Technical specification
- Typical application performance
- TDS and Catalog download
| Item | Property | |
| TiO2 Content, % | Min | 97 |
| Inorganic treatment | Al₂O₃·nH₂O | |
| Organic treatment | Organic silicon | |
| Relative tinting strength, % | Min | 120 |
| Oil absorption, g/100g | Max | 13 |
| Moisture 105℃, % | Max | 0.4 |
| Water soluble substance, % | Max | 0.3 |
| Specific gravity, g/cm3 | 4 | |
| PH | 5.0-7.0 | |
| Standard classification | ISO 591 DIN 55912 R1 | |
| ASTM D476 -00: Ⅱ | ||
| Color index | Pigment white 6 | |
| Packing | 25kg/bag, 500kg/bag, 1000kg/bag | |
| Application | Polycarbonate and PC alloys; ABS, PET and PA engineering plastics; | |
| Selected high-performance polyolefin masterbatch applications. | ||
| Storage | Store in cool, well -ventilated area . Keep away from ignition source, heat and flame . Store in a tightly closed container. | |
| Handling | Avoid dust formation during handling . Provide appropriate exhaust ventilation at machiner y and at places where dust can be generated . In case of insufficient ventilation, wear suitable respirator y equipment . Please see the Material Safety Data Sheets (MSDS) of this product for more safety information prior to use . | |
| PVC grey sheet | PC injection | |
| L* | 65.24 | 97.5 |
| b* | -1 .40 | 1.2 |
| *Relative tinting strength,%
(Reference samples are STD.) |
104 | / |
- PVC greysheet: Pigment(TiO2) concentration (PHR) = 4.0, grey sheet (TiO2 : carbon black) = 20:1;
- PC injection: Pigment (TiO2) content= 30%;
Technical Resources for DR-2688
Explore the DR Series technical white paper and the DR-2688 application report covering grade positioning, PC compatibility, melt-flow behavior, lightness, yellowing control and mechanical-property retention.
DR Series High-Performance Rutile TiO2 for Plastics
Product architecture, surface-treatment logic, grade selection and application guidance for DR-2588, DR-2589 and DR-2688.
DR-2688 PC Engineering Plastics Application
Technical evaluation of DR-2688 in polycarbonate, including processing stability, melt-flow behavior, lightness, yellowing control and mechanical-property retention.