Electrically Conductive Carbon Nanotubes PP Masterbatch

ADCNT-PP MB is an advanced Electrically Conductive Carbon Nanotubes Polypropylene Masterbatch. Engineered with 15% ± 1 wt% customized carbon nanotubes in a PP matrix for uncompromising performance.

 

SpecificationsQuote

Electrical Performance

ADCNT-PP MB achieves percolation at exceptionally low loading levels, preserving the mechanical properties of the base polymer while delivering permanent conductivity.

Masterbatch Properties

Dilution of ADCNT-PP MB into neat polypropylene matrix significantly impacts the Melt Flow Index (MFI). The extreme aspect ratio of carbon nanotubes forms a structural network that restricts polymer chain mobility at lower shear rates.

Product Name ADCNT-PP MB
Polymer Matrix Polypropylene (PP)
Conductive Additive Customized Carbon Nanotubes
CNT Loading 15% ± 1 wt%
Physical Form

Black Pellets

MFI (230°C / 2.16 kg) Not Measurable (Very low flow)
Real Density 556 g/L

Appearance & Flow

Target Surface Resistivity band Target CNT wt% in final PP Required CNT‑PP MB (wt%) loading in PP
~10⁷ Ω/sq (ESD) 3% ~ 20% MB
~10⁴ Ω/sq (conductive) 5% ~ 33% MB
~10³ Ω/sq (conductive / EMI‑assist) 7% ~ 47% MB
<10³ Ω/sq (Highly conductive) ~10% ~ 67% MB

 

Application Matrix

Shear & Mixing Control:
Use moderate screw speed to avoid excessive shear that may shorten CNTs and reduce conductivity. Ensure uniform premixing (tumbler mixer or gravimetric dosing) to prevent streaks and insulating regions.

Handling Precautions:
Store in closed bags in a cool, dry place, away from sunlight. Re-seal opened bags and re-dry if needed. Minimize dust and follow CNT safety (SDS) guidelines during handling.

Application-Based Usage:
Adjust CNT loading (~3–10 wt%) based on requirement: ESD (~3%), conductive (~5%), EMI/grounding (~7–10%), ensuring optimal balance between conductivity and processability.

Processing Guidelines

Proper handling and processing are critical to achieving optimal dispersion and electrical performance. The CNT network must be established uniformly throughout the polymer matrix.

Storage & Handling
  • Store in dry, well-ventilated conditions. Keep containers tightly closed when not in use. Material may absorb moisture which can cause surface defects during molding.

Drying Requiremnts
Pre-drying is highly recommended to prevent voids and surface splay. Dry the masterbatch at 80°C to 90°C for 2 to 4 hours using a desiccant dryer prior to compounding or molding.

Processing Temperature
Typical melt processing temperatures for PP/CNT formulations range between 200°C and 240°C. Adjust profile based on the specific grade of the neat PP diluent and the final target CNT loading.