Overview
Ceramic White Masterbatch is a pre-dispersed pigment concentrate used to impart a bright, opaque white color to plastic products. It is primarily composed of titanium dioxide (TiO2) as the whitening agent, carrier resins, and additives for improved processing. The masterbatch format ensures uniform color distribution and simplifies handling compared to raw pigments. This product is widely adopted in industries requiring consistent white coloration, such as packaging, consumer goods, and automotive components. Its formulation can be customized for specific polymer bases like PP, PE, PVC, or ABS, ensuring optimal compatibility and performance in various manufacturing processes.
Physical and Chemical Properties
Ceramic White Masterbatch exhibits high opacity due to the refractive index of titanium dioxide (2.7 for rutile TiO2). The granular or pellet form ensures easy metering and mixing with base polymers. Key technical attributes include heat stability up to 300°C (depending on carrier resin) and resistance to UV degradation when formulated with appropriate stabilizers. The masterbatch demonstrates excellent dispersion characteristics, preventing speckling or streaking in finished products. Its insolubility in water makes it suitable for outdoor applications. Particle size distribution (typically 0.2-0.5 microns) is optimized for both opacity and mechanical properties of the final plastic article.
Main Applications
Primary applications include food packaging (e.g., dairy containers), household appliances (refrigerator panels, washing machine parts), and automotive interiors (dashboards, trim components). The masterbatch is compatible with injection molding, blow molding, and extrusion processes, making it versatile for thin films, thick sheets, and 3D molded items. In the construction sector, it is used for PVC profiles and piping where weatherability is critical. Specialty grades are available for fibers and technical textiles requiring whiteness retention after repeated washing. The pharmaceutical industry employs it for medical device housings where color consistency is regulated.
Safety and Storage
While titanium dioxide is generally considered low-toxicity, the powder form requires precautions against inhalation (NIOSH recommends P1/P2 filters). The masterbatch format reduces dust exposure but still warrants proper ventilation during high-temperature processing. Skin contact should be minimized as carriers may include low-molecular-weight polymers or additives. Storage recommendations include keeping bags sealed in a dry environment below 30°C to prevent moisture absorption. Shelf life typically exceeds 12 months when stored properly. Fire safety measures should follow guidelines for organic polymers, as the carrier resin is combustible at processing temperatures.
B2B Procurement Guide
When sourcing Ceramic White Masterbatch, verify the TiO2 content percentage (industry standards range from 20% for cost-sensitive applications to 80% for premium opacity). Request technical datasheets with CIELAB whiteness values (typically L*>95, b*<2 for premium grades) and migration resistance test reports if applicable. Supplier audits should assess dispersion technology (twin-screw vs. single-screw compounding) and quality control measures like laser particle size analysis. For large-volume procurement (5+ metric tons), negotiate pricing based on TiO2 market trends and consider regional production to reduce logistics costs. Always test masterbatch samples with your specific base resin and processing parameters before bulk orders.
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