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Black masterbatch is a concentrated mixture of pigments and additives, typically made from polyethylene or polypropylene, used to impart black color to plastic products. It is produced through a process of high shear mixing, where carbon black or other black pigments are dispersed evenly within a polymer carrier. This product is commonly utilized in various plastic manufacturing processes, including injection molding, blow molding, and film extrusion.
| Carrier resin | Polyethylene or polypropylene |
| Pigment type | Carbon black |
| Concentration | Typically 30% to 50% pigment loading |
| Melt flow index | Varies based on application, typically 1 to 20 g/10 min |
| Particle size | Typically 20 to 100 microns |
When selecting black masterbatch, consider the type of carrier resin that matches your base polymer for optimal compatibility. Specify the desired pigment concentration based on the level of blackness required in your final product. Additionally, inquire about the melt flow index to ensure it aligns with your processing conditions. Certifications and compliance with industry standards may also be important, depending on your application.
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It is primarily used to color plastic products black in various manufacturing processes.
It is best used with compatible polymers like polyethylene and polypropylene.
It provides uniform color, enhances UV protection, and improves processability.
It is produced by mixing carbon black with a polymer carrier through high shear processing.
Pigment concentration, carrier resin compatibility, and processing conditions can all impact performance.
The environmental impact depends on the specific formulation and disposal methods of the final products.