Additive masterbatch and colour masterbatch differ primarily in their purpose and the properties they impart to plastic:
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Additive masterbatch is used to add or enhance specific properties in plastics that wouldn't otherwise exist. These properties can include anti-static, flame retardant, flexibility, thermal conductivity, or other functional traits. It modifies the plastic's behavior or performance beyond just color.
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Colour masterbatch is a highly concentrated mixture of pigments or dyes designed specifically to add colour to plastics. It ensures vibrant, consistent colouring and improved pigment dispersion compared to raw pigments.
Key distinctions:
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Additive masterbatch modifies physical or chemical properties.
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Colour masterbatch is primarily for colouring plastics.
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Both come in pellet form and are mixed with plastic to achieve the desired effect.
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Colour masterbatch improves colour consistency, opacity, and ease of handling without the contamination risks of powder pigments.
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Additive masterbatch improves product functionality and processing characteristics.
In summary, colour masterbatch adds colour to plastic, while additive masterbatch imparts functional properties to the plastic material.