Q1: What does conductive masterbatch do?

A: It imparts antistatic or electromagnetic shielding functions to plastic products, meeting the electrostatic protection and electromagnetic compatibility requirements of electronic equipment. In electronic component packaging, for example, packaging material made with conductive masterbatch effectively prevents static electricity from damaging precision parts.

Q2: Which base resins does RenJie® conductive masterbatch cover?

A: Year-round stock covers HIPS, LLDPE, HDPE, PP, PVC, ABS, POM and Nylon, all suitable for injection molding, extrusion and film blowing.

Q3: What loading of conductive masterbatch is required?

A: It depends on the target resistance and should be verified by testing. For 300CNT MWCNT masterbatch, 2% achieves antistatic performance, while general engineering plastics such as ABS, PC, PS, PP and PA6 typically use 2%–8%.

Q4: How do I choose between carbon black and carbon nanotube masterbatch?

A: Carbon black is cost-effective with good conductivity and is the most widely used filler, but it usually turns the part black and may reduce mechanical properties such as impact strength. Carbon nanotube masterbatch works at lower loading with better conductivity and less impact on the base resin, making it suitable for high-end applications and parts with strict appearance or mechanical requirements.

Q5: Does conductive masterbatch need pre-drying before processing?

A: Yes, pre-drying is recommended — especially for hygroscopic materials such as carbon black conductive masterbatch — to avoid moisture affecting processing performance and product quality.

Q6: How should conductive masterbatch be stored?

A: Store it in a dry, cool and ventilated place, away from moisture and high temperature, to prevent performance deterioration.