Description
SWCNT Pre-Dispersion for Silicone Elastomer Modification (CTIRS-01)
CTIRS-01 is a 10 wt% SWCNT paste for LSR, RTV, and similar silicone systems. At extremely low addition it gives silicone rubber strong electrical properties while minimizing impact on mechanical properties and allowing flexible multi-color formulation, serving as a permanent antistatic alternative to carbon-black-loaded black silicone. It is intended for silicone compounders and molders buying at production volume for electronics, medical device, and precision optics applications.
Core Characteristics
- No significant changes to existing formulations or production equipment; convenient to implement.
- Extremely low addition with minimal effect on mechanical properties; supports multi-color coloring.
- Significantly and permanently reduces surface and volume resistivity.
Spec Table
| Property | Specification |
|---|---|
| Appearance | Black paste |
| SWCNT content | 10.0 wt% |
| Flash point | 290 °C |
| Density | ~0.991 g/cm³ |
Base SWCNT feedstock: 1-2 nm outer diameter, ≥98% purity by TGA (see the SWCNT Powders page for full grade specification).
Application Examples (LSR, Shore 30) (Representative Data)
| LSR System | CTIRS-01 Addition (%) | Net SWCNT (%) | Surface Resistance (Ω) |
|---|---|---|---|
| 10,000 mPa·s | 0.3-0.5 | 0.03-0.05 | 10&sup7;-10&sup9; |
| 10,000 mPa·s | 0.5-2.0 | 0.05-0.2 | 10&sup5;-10&sup7; |
| 10,000 mPa·s | 2.0-5.0 | 0.2-0.5 | 10³-10&sup5; |
| 300,000 mPa·s | 0.5-1.0 | 0.05-0.1 | 10&sup7;-10¹² |
| 300,000 mPa·s | 1.0-2.0 | 0.1-0.2 | 10&sup4;-10&sup7; |
| 300,000 mPa·s | 2.0-5.0 | 0.2-0.5 | 10³-10&sup4; |
Dispersion Instructions
- 10,000 mPa·s systems, addition <1%: 50 mm dispersion disc at 1600 rpm for 20 minutes.
- 10,000 mPa·s systems with addition >1%, and all 300,000 mPa·s systems: five passes on a three-roll mill.
Recommended Evaluation
Initial screen at 0.3%, 0.5%, and 1.0% by total weight; calibrate final dosage with repeated multi-batch trials.
Applications
- Aerospace components
- Consumer electronics
- Semiconductor handling
- Medical devices
- Photovoltaic and new-energy equipment
- Automotive electronics
- Precision optics and chemical explosion-proof applications
Packaging / Availability
Available from evaluation quantities through multi-ton annual supply agreements. ISO 9001 certified production. Each lot ships with a representative Certificate of Analysis; Raman, TGA, and SEM/TEM data available on request.
Representative Data
All values are representative of typical production and do not constitute a lot-specific guarantee. Certificates of analysis accompany each shipment.